Earthquake.pptx
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An earthquake is caused by sudden movements of the earth's crust. The point where it originates is called the focus, and the point directly above on the surface is the epicenter. Earthquakes are measured on the Richter scale using a seismometer. Bhutan experiences frequent earthquakes because it is located in an active seismic zone where the Indian and Eurasian tectonic plates collide, creating pressure along fault lines like the Main Himalayan Thrust fault that runs through Bhutan.
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EducTech
An earthquake is a sudden release of energy in the Earth's crust that creates seismic waves. Seismic activity refers to the frequency, type, and size of earthquakes in a given period of time. Earthquakes are measured using seismometers and originate from a hypocenter or focus, located at the epicenter on the Earth's surface above the point of rupture. Earthquakes are typically caused by the rupture of geological faults, volcanic activity, landslides, mine blasts, or nuclear tests and can result in shaking, ground rupture, tsunamis, landslides, fires, flooding, and other damage. To survive an earthquake, one should prepare and remain calm during shaking.
Earthquakes - It's Causes And Effects
Earthquakes are caused by movements within the earth's crust or volcanic action. There are several types of earthquakes including tectonic, volcanic, collapse, and explosion earthquakes. Tectonic earthquakes occur due to geological forces on rocks and plates, volcanic earthquakes are induced by movement of magma, collapse earthquakes happen in underground mines and caverns, and explosion earthquakes result from nuclear or chemical explosions. Earthquakes are a natural result of the earth cooling, but human activities like dams, groundwater extraction, geothermal plants, and injection wells can also induce quakes. Earthquakes cause both primary effects like collapsed buildings that kill people directly, and secondary effects like tsunamis, landslides,
Disaster management &;mitigation
An earthquake is caused by the sudden release of energy in the Earth's tectonic plates. Tectonic plates are massive slabs of solid rock that make up the Earth's crust and upper mantle. The majority of earthquakes are caused by the movement of these tectonic plates. Other causes include volcanic activity, as earthquakes can accompany magma rising during an eruption, and underground explosions from mining or construction. Earthquakes are measured using seismographs that detect seismic waves, and their magnitude is quantified using the Richter scale.
What is an Earthquake.docx
An earthquake is caused by a sudden release of energy in the earth's crust that creates seismic waves. Earthquakes are primarily caused by the movement of tectonic plates deep underground. The location where the earthquake starts is called the hypocenter, and the point directly above on the surface is the epicenter. Earthquakes can cause significant damage through ground shaking, surface ruptures, landslides, liquefaction, tsunamis and fires. While earthquakes also lead to some benefits like forming natural springs and mineral resources, they typically have many negative effects such as damage to buildings and infrastructure, loss of lives, and economic impacts.
earthquakes.pptx
Earthquakes are natural phenomena caused by the sudden release of energy in the Earth's crust, resulting in seismic waves that propagate through the ground. These seismic waves can cause the ground to shake, leading to potentially destructive consequences. Here's a breakdown of key elements related to earthquakes:
Earthquake Introduction
This document defines earthquakes and describes how they occur. It explains that earthquakes are caused by the sudden release of energy stored in rocks in the earth's crust as tectonic plates move. This energy is released as seismic waves that propagate outward from the earthquake epicenter. The document defines key terms like focus, epicenter, and fault. It also describes different types of seismic waves and how earthquakes are measured in terms of both magnitude and intensity using the Richter and Mercalli scales. Causes of earthquakes include plate tectonics, volcanic activity, and human activities like mining. The document provides examples of major historical earthquakes worldwide and in India.
Earthquakes(1)
Earthquakes are caused by the sudden release of built-up energy along fault lines in the Earth's crust. When the stresses exceed the strength of the rocks, they break and seismic waves are produced. There are three main types of seismic waves - P waves, S waves, and L waves. P waves travel fastest while L waves cause the most damage. Earthquakes are measured by both magnitude, which indicates the amount of energy released, and intensity, which describes the effects at a particular location. Analyzing seismic wave arrival times at multiple stations allows scientists to determine the epicenter and focus of an earthquake. Major earthquake hazards include tsunamis, landslides, liquefaction, and falling debris.
earthquake.pptx
An earthquake occurs when two blocks of the earth suddenly slip past one another at a fault line. The location below the surface where the earthquake starts is the focus, and the location above it on the surface is the epicenter. Earthquakes are measured by both magnitude, which measures the energy released, and intensity, which measures the effects on people and structures. Earthquakes are caused by the slow movement of tectonic plates, and most occur at plate boundaries along faults. The damage caused by an earthquake depends on factors like its strength, population density of the affected area, building quality, and secondary hazards like landslides or tsunamis.
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EducTech
An earthquake is a sudden release of energy in the Earth's crust that creates seismic waves. Seismic activity refers to the frequency, type, and size of earthquakes in a given period of time. Earthquakes are measured using seismometers and originate from a hypocenter or focus, located at the epicenter on the Earth's surface above the point of rupture. Earthquakes are typically caused by the rupture of geological faults, volcanic activity, landslides, mine blasts, or nuclear tests and can result in shaking, ground rupture, tsunamis, landslides, fires, flooding, and other damage. To survive an earthquake, one should prepare and remain calm during shaking.
Earthquakes - It's Causes And Effects
Earthquakes are caused by movements within the earth's crust or volcanic action. There are several types of earthquakes including tectonic, volcanic, collapse, and explosion earthquakes. Tectonic earthquakes occur due to geological forces on rocks and plates, volcanic earthquakes are induced by movement of magma, collapse earthquakes happen in underground mines and caverns, and explosion earthquakes result from nuclear or chemical explosions. Earthquakes are a natural result of the earth cooling, but human activities like dams, groundwater extraction, geothermal plants, and injection wells can also induce quakes. Earthquakes cause both primary effects like collapsed buildings that kill people directly, and secondary effects like tsunamis, landslides,
Disaster management &;mitigation
An earthquake is caused by the sudden release of energy in the Earth's tectonic plates. Tectonic plates are massive slabs of solid rock that make up the Earth's crust and upper mantle. The majority of earthquakes are caused by the movement of these tectonic plates. Other causes include volcanic activity, as earthquakes can accompany magma rising during an eruption, and underground explosions from mining or construction. Earthquakes are measured using seismographs that detect seismic waves, and their magnitude is quantified using the Richter scale.
What is an Earthquake.docx
An earthquake is caused by a sudden release of energy in the earth's crust that creates seismic waves. Earthquakes are primarily caused by the movement of tectonic plates deep underground. The location where the earthquake starts is called the hypocenter, and the point directly above on the surface is the epicenter. Earthquakes can cause significant damage through ground shaking, surface ruptures, landslides, liquefaction, tsunamis and fires. While earthquakes also lead to some benefits like forming natural springs and mineral resources, they typically have many negative effects such as damage to buildings and infrastructure, loss of lives, and economic impacts.
earthquakes.pptx
Earthquakes are natural phenomena caused by the sudden release of energy in the Earth's crust, resulting in seismic waves that propagate through the ground. These seismic waves can cause the ground to shake, leading to potentially destructive consequences. Here's a breakdown of key elements related to earthquakes:
Earthquake Introduction
This document defines earthquakes and describes how they occur. It explains that earthquakes are caused by the sudden release of energy stored in rocks in the earth's crust as tectonic plates move. This energy is released as seismic waves that propagate outward from the earthquake epicenter. The document defines key terms like focus, epicenter, and fault. It also describes different types of seismic waves and how earthquakes are measured in terms of both magnitude and intensity using the Richter and Mercalli scales. Causes of earthquakes include plate tectonics, volcanic activity, and human activities like mining. The document provides examples of major historical earthquakes worldwide and in India.
Earthquakes(1)
Earthquakes are caused by the sudden release of built-up energy along fault lines in the Earth's crust. When the stresses exceed the strength of the rocks, they break and seismic waves are produced. There are three main types of seismic waves - P waves, S waves, and L waves. P waves travel fastest while L waves cause the most damage. Earthquakes are measured by both magnitude, which indicates the amount of energy released, and intensity, which describes the effects at a particular location. Analyzing seismic wave arrival times at multiple stations allows scientists to determine the epicenter and focus of an earthquake. Major earthquake hazards include tsunamis, landslides, liquefaction, and falling debris.
earthquake.pptx
An earthquake occurs when two blocks of the earth suddenly slip past one another at a fault line. The location below the surface where the earthquake starts is the focus, and the location above it on the surface is the epicenter. Earthquakes are measured by both magnitude, which measures the energy released, and intensity, which measures the effects on people and structures. Earthquakes are caused by the slow movement of tectonic plates, and most occur at plate boundaries along faults. The damage caused by an earthquake depends on factors like its strength, population density of the affected area, building quality, and secondary hazards like landslides or tsunamis.
Earthquake
Earthquake is a natural vibration of the earth's crust caused by the sudden slip of tectonic plates past one another or by volcanic or magmatic activity. There are different types of earthquakes including tectonic, volcanic, collapse, and explosions. Earthquakes can cause damage through effects like landslides, ground displacement, and liquefaction. Proper seismic design of structures aims to allow buildings to withstand earthquakes and minimize risks.
EarthQuake.pptx
An earthquake is a violent and abrupt shaking of the ground, caused by movement between tectonic plates along a fault line in the earth's crust. Earthquakes can result in the ground shaking, soil liquefaction, landslides, fissures, avalanches, fires and tsunamis.
How do you describe an earthquake?
A large earthquake far away will feel like a gentle bump followed several seconds later by stronger rolling shaking that may feel like sharp shaking for a little while. A small earthquake nearby will feel like a small sharp jolt followed by a few stronger sharp shakes that pass quickly.
Civil Engineering
Earth Quake Data
Earth Layers
Plate Tectonics
Seismic Waves
Effects of Earthquake
Epicenter of Earthquake
Damages by Earthquake
Earthquake
This document discusses earthquakes, including their causes and global distribution. It begins by defining earthquakes and describing the different types of seismic waves generated. There are two main types of body waves (P and S waves) and two main types of surface waves (Love and Rayleigh waves). Earthquakes are primarily caused by tectonic plate movement and faulting, as well as volcanic activity. They most commonly occur along plate boundaries and zones of historical mountain building. India has been divided into different seismic zones based on earthquake risk, with Zone V representing the highest risk.
Earthquakes
1) Earthquakes are caused by the sudden release of energy in Earth's crust from tectonic plate movement.
2) Seismic waves from earthquakes travel outward from the focus, with P and S waves detected by seismographs to locate the epicenter.
3) The magnitude scale is used to measure earthquake strength based on seismic wave amplitude, while intensity scales describe damage levels at a location.
Earthquake Notes
Earthquakes occur when tectonic forces cause rocks underground to break, releasing seismic waves. The focus is where the rocks break, and the epicenter is the point directly above on the surface. Different types of faults are caused by tension, compression, and shear forces. Earthquakes are measured by their magnitude using the Richter scale and by their intensity of shaking. Locating the epicenter involves measuring seismic wave arrival times at different stations. Earthquake dangers include falling objects, fires, tsunamis, liquefaction, and landslides.
Earthquake
An earthquake is caused by a sudden release of energy in the Earth's crust that generates seismic waves. Faults in the crust result from tectonic plate movements and cause earthquakes when the rocks on either side slip past each other due to accumulated elastic strain. The focus is the point where slippage originates underground, while the epicenter is the point directly above on the surface. Seismographs installed worldwide record earthquake ground motions to study seismic activity.
Earthquake
The document discusses various topics related to earthquakes including what causes them, the different types of waves they produce, how their magnitude is measured, other disasters they can cause, and safety precautions. It explains that earthquakes are caused by the sudden release of built-up stress in the Earth's crust from plate tectonic movement and fault slippage. P and S waves are body waves that pass through the Earth's interior while surface waves like Rayleigh and Love waves travel along its surface and can be very destructive. The Richter scale and Mercalli scale are used to measure the magnitude and intensity of shaking from quakes.
Earthquakes
1) Earthquakes are caused by the sudden release of energy in Earth's lithosphere that generates seismic waves.
2) Seismic waves are measured using seismographs and can be used to locate the epicenter and focus of an earthquake.
3) The main types of seismic waves are P waves, S waves, and surface waves, which cause different types of ground motion and damage during an earthquake.
Endogenous disasters earth quakes
An earthquake (also known as a quake, tremor or temblor) is is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to the people around and destroy whole cities.
Earthquake project
The document provides information about earthquakes, including:
1) What causes earthquakes including the buildup and sudden release of energy within rocks, often along fault lines as tectonic plates move.
2) Different types of seismic waves - P, S, and surface waves - are produced and how they travel through the Earth.
3) Major earthquake zones exist along plate boundaries like the Circum-Pacific belt and Alpide belt, and earthquakes are measured on the Richter scale from small to great quakes over magnitude 8.
Water Cycle
Earthquakes occur when energy stored in Earth's crust is suddenly released, causing seismic waves. The focus is where the seismic waves originate underground, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, S waves, and L waves - which travel outward from the focus. Earthquakes are measured by their magnitude, which indicates the amount of energy released, and by their intensity, which describes the observed effects on people and structures.
Earthquakes
Earthquakes occur when energy stored in Earth's crust is suddenly released, causing seismic waves. The focus is where the seismic waves originate underground, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, S waves, and L waves - which travel outward from the focus. Earthquakes are measured by their magnitude, which indicates the amount of energy released, and by their intensity, which describes the observed effects on people and structures.
Earthquakes
Earthquakes occur when energy stored in Earth's crust is suddenly released, causing seismic waves. The focus is where the seismic waves originate underground, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, S waves, and L waves - which travel outward from the focus. Earthquakes are measured by their magnitude, which indicates the amount of energy released, and by their intensity, which describes the observed effects on people and structures.
Earthquake , Tsunami and Subduction zone
Earthquakes are caused by the sudden release of energy along fault lines in the earth's crust. The effects of earthquakes vary based on their magnitude and can include widespread destruction and loss of life. Seismic waves, including compressional P-waves and shear S-waves, travel outward from the hypocenter or focus of the earthquake. The location of the epicenter at the earth's surface directly above the focus can be determined using seismic data from multiple monitoring stations. Earthquakes are measured on scales such as the Richter scale and Modified Mercalli intensity scale.
2.1 2.2 epicenter and focus and magnitude and intensity.pptx
The focus is the point where rock breaks during an earthquake and seismic waves begin, which can be at deep or shallow depths. The epicenter is the point on the surface directly above the focus and is usually what is used to locate the position of an earthquake. Magnitude measures the strength of energy released during an earthquake using the Richter scale, while intensity measures the damage or effects based on the Mercalli or PEIS scales.
Earthquake and It's Mitigation - Group 3.pdf
Earthquakes occur when seismic waves are generated by the sudden release of energy from below the earth's surface. They can be caused by the movement of tectonic plates or volcanic eruptions. Seismographs are used to measure the strength and location of earthquakes using scales like the Richter scale. Earthquakes can be classified by depth as deep, intermediate, or shallow and by cause as tectonic or volcanic. They can cause physical damage like collapsed buildings and social impacts like poverty and disease. To mitigate earthquakes, structures can be built to withstand shaking and emergency plans made. During an earthquake, protective actions should be taken like dropping and covering until the shaking stops.
Earthquakes
Earthquakes occur when tectonic forces cause rocks underground to break, releasing energy in the form of seismic waves. The focus is the point where the rocks break, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, which move particles back and forth; S waves, which move particles at right angles; and surface L waves, which cause the most damage. We measure the location and magnitude of earthquakes using seismographs to detect and measure the amplitude of the different wave types.
Earthquake - A tragedy to life and property
This presentation contains a brief introduction to the earthquake, its classification, effect, and causes.
Earthquakes.pptx
Earthquakes are caused by tectonic movements within the Earth that release stress and cause seismic waves. There are three main belts where earthquakes commonly occur - the Circum-Pacific belt, Mid-Atlantic belt, and Mid-Continental belt. Earthquakes can cause damage through ground shaking, liquefaction, landslides, and tsunamis. Their intensity is measured using the Modified Mercalli scale while their magnitude is measured using the Richter scale. Regions are classified into seismic zones based on their likelihood of experiencing damaging earthquakes.
EARTHQUAKE environment notes for geology.pptx
pifefjepfodwjdhwdwknkjwnxnwhewifi wienfeijewiucbewjcowen iwecijecpiwecpewhc fnreinferomewnwrooiojioninein jrnrievierjvriohijeijeoihioielj iornirnoeriiorehlirehrioejeoii nreiojeroejiiewff9efiewiwoindio oiodivdoijvdjvd didiihvihkoffd iofijdiovjdovjdovjdjvdovjdjvdivdijvojvv jfjeefjeiohfefjewiofjiojf iefeifhreijeirfjeifnelfeifpenrorygtgtuhttiefp[fenejc rijr oifreiofroehferferuherifjenfeurenleke iovleivnkfnvnevoijrioeqnniirefer oifhroeiuhreoirlirnrnrjqfjqefhuehfefihfprfhr iforrihrp9trhbtuhh89uu85u9ut4bnen iorfirfnejevbeilnvreg89fhrfnerbrnvekjerjbelhlrev vln il nrunrvnj rrh reioufreireorejgeriorerpfpr ggergjreoighrrrihjr
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Similar to Earthquake.pptx
Earthquake
Earthquake is a natural vibration of the earth's crust caused by the sudden slip of tectonic plates past one another or by volcanic or magmatic activity. There are different types of earthquakes including tectonic, volcanic, collapse, and explosions. Earthquakes can cause damage through effects like landslides, ground displacement, and liquefaction. Proper seismic design of structures aims to allow buildings to withstand earthquakes and minimize risks.
EarthQuake.pptx
An earthquake is a violent and abrupt shaking of the ground, caused by movement between tectonic plates along a fault line in the earth's crust. Earthquakes can result in the ground shaking, soil liquefaction, landslides, fissures, avalanches, fires and tsunamis.
How do you describe an earthquake?
A large earthquake far away will feel like a gentle bump followed several seconds later by stronger rolling shaking that may feel like sharp shaking for a little while. A small earthquake nearby will feel like a small sharp jolt followed by a few stronger sharp shakes that pass quickly.
Civil Engineering
Earth Quake Data
Earth Layers
Plate Tectonics
Seismic Waves
Effects of Earthquake
Epicenter of Earthquake
Damages by Earthquake
Earthquake
This document discusses earthquakes, including their causes and global distribution. It begins by defining earthquakes and describing the different types of seismic waves generated. There are two main types of body waves (P and S waves) and two main types of surface waves (Love and Rayleigh waves). Earthquakes are primarily caused by tectonic plate movement and faulting, as well as volcanic activity. They most commonly occur along plate boundaries and zones of historical mountain building. India has been divided into different seismic zones based on earthquake risk, with Zone V representing the highest risk.
Earthquakes
1) Earthquakes are caused by the sudden release of energy in Earth's crust from tectonic plate movement.
2) Seismic waves from earthquakes travel outward from the focus, with P and S waves detected by seismographs to locate the epicenter.
3) The magnitude scale is used to measure earthquake strength based on seismic wave amplitude, while intensity scales describe damage levels at a location.
Earthquake Notes
Earthquakes occur when tectonic forces cause rocks underground to break, releasing seismic waves. The focus is where the rocks break, and the epicenter is the point directly above on the surface. Different types of faults are caused by tension, compression, and shear forces. Earthquakes are measured by their magnitude using the Richter scale and by their intensity of shaking. Locating the epicenter involves measuring seismic wave arrival times at different stations. Earthquake dangers include falling objects, fires, tsunamis, liquefaction, and landslides.
Earthquake
An earthquake is caused by a sudden release of energy in the Earth's crust that generates seismic waves. Faults in the crust result from tectonic plate movements and cause earthquakes when the rocks on either side slip past each other due to accumulated elastic strain. The focus is the point where slippage originates underground, while the epicenter is the point directly above on the surface. Seismographs installed worldwide record earthquake ground motions to study seismic activity.
Earthquake
The document discusses various topics related to earthquakes including what causes them, the different types of waves they produce, how their magnitude is measured, other disasters they can cause, and safety precautions. It explains that earthquakes are caused by the sudden release of built-up stress in the Earth's crust from plate tectonic movement and fault slippage. P and S waves are body waves that pass through the Earth's interior while surface waves like Rayleigh and Love waves travel along its surface and can be very destructive. The Richter scale and Mercalli scale are used to measure the magnitude and intensity of shaking from quakes.
Earthquakes
1) Earthquakes are caused by the sudden release of energy in Earth's lithosphere that generates seismic waves.
2) Seismic waves are measured using seismographs and can be used to locate the epicenter and focus of an earthquake.
3) The main types of seismic waves are P waves, S waves, and surface waves, which cause different types of ground motion and damage during an earthquake.
Endogenous disasters earth quakes
An earthquake (also known as a quake, tremor or temblor) is is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to the people around and destroy whole cities.
Earthquake project
The document provides information about earthquakes, including:
1) What causes earthquakes including the buildup and sudden release of energy within rocks, often along fault lines as tectonic plates move.
2) Different types of seismic waves - P, S, and surface waves - are produced and how they travel through the Earth.
3) Major earthquake zones exist along plate boundaries like the Circum-Pacific belt and Alpide belt, and earthquakes are measured on the Richter scale from small to great quakes over magnitude 8.
Water Cycle
Earthquakes occur when energy stored in Earth's crust is suddenly released, causing seismic waves. The focus is where the seismic waves originate underground, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, S waves, and L waves - which travel outward from the focus. Earthquakes are measured by their magnitude, which indicates the amount of energy released, and by their intensity, which describes the observed effects on people and structures.
Earthquakes
Earthquakes occur when energy stored in Earth's crust is suddenly released, causing seismic waves. The focus is where the seismic waves originate underground, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, S waves, and L waves - which travel outward from the focus. Earthquakes are measured by their magnitude, which indicates the amount of energy released, and by their intensity, which describes the observed effects on people and structures.
Earthquakes
Earthquakes occur when energy stored in Earth's crust is suddenly released, causing seismic waves. The focus is where the seismic waves originate underground, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, S waves, and L waves - which travel outward from the focus. Earthquakes are measured by their magnitude, which indicates the amount of energy released, and by their intensity, which describes the observed effects on people and structures.
Earthquake , Tsunami and Subduction zone
Earthquakes are caused by the sudden release of energy along fault lines in the earth's crust. The effects of earthquakes vary based on their magnitude and can include widespread destruction and loss of life. Seismic waves, including compressional P-waves and shear S-waves, travel outward from the hypocenter or focus of the earthquake. The location of the epicenter at the earth's surface directly above the focus can be determined using seismic data from multiple monitoring stations. Earthquakes are measured on scales such as the Richter scale and Modified Mercalli intensity scale.
2.1 2.2 epicenter and focus and magnitude and intensity.pptx
The focus is the point where rock breaks during an earthquake and seismic waves begin, which can be at deep or shallow depths. The epicenter is the point on the surface directly above the focus and is usually what is used to locate the position of an earthquake. Magnitude measures the strength of energy released during an earthquake using the Richter scale, while intensity measures the damage or effects based on the Mercalli or PEIS scales.
Earthquake and It's Mitigation - Group 3.pdf
Earthquakes occur when seismic waves are generated by the sudden release of energy from below the earth's surface. They can be caused by the movement of tectonic plates or volcanic eruptions. Seismographs are used to measure the strength and location of earthquakes using scales like the Richter scale. Earthquakes can be classified by depth as deep, intermediate, or shallow and by cause as tectonic or volcanic. They can cause physical damage like collapsed buildings and social impacts like poverty and disease. To mitigate earthquakes, structures can be built to withstand shaking and emergency plans made. During an earthquake, protective actions should be taken like dropping and covering until the shaking stops.
Earthquakes
Earthquakes occur when tectonic forces cause rocks underground to break, releasing energy in the form of seismic waves. The focus is the point where the rocks break, and the epicenter is the point directly above on the surface. There are three main types of seismic waves - P waves, which move particles back and forth; S waves, which move particles at right angles; and surface L waves, which cause the most damage. We measure the location and magnitude of earthquakes using seismographs to detect and measure the amplitude of the different wave types.
Earthquake - A tragedy to life and property
This presentation contains a brief introduction to the earthquake, its classification, effect, and causes.
Earthquakes.pptx
Earthquakes are caused by tectonic movements within the Earth that release stress and cause seismic waves. There are three main belts where earthquakes commonly occur - the Circum-Pacific belt, Mid-Atlantic belt, and Mid-Continental belt. Earthquakes can cause damage through ground shaking, liquefaction, landslides, and tsunamis. Their intensity is measured using the Modified Mercalli scale while their magnitude is measured using the Richter scale. Regions are classified into seismic zones based on their likelihood of experiencing damaging earthquakes.
EARTHQUAKE environment notes for geology.pptx
pifefjepfodwjdhwdwknkjwnxnwhewifi wienfeijewiucbewjcowen iwecijecpiwecpewhc fnreinferomewnwrooiojioninein jrnrievierjvriohijeijeoihioielj iornirnoeriiorehlirehrioejeoii nreiojeroejiiewff9efiewiwoindio oiodivdoijvdjvd didiihvihkoffd iofijdiovjdovjdovjdjvdovjdjvdivdijvojvv jfjeefjeiohfefjewiofjiojf iefeifhreijeirfjeifnelfeifpenrorygtgtuhttiefp[fenejc rijr oifreiofroehferferuherifjenfeurenleke iovleivnkfnvnevoijrioeqnniirefer oifhroeiuhreoirlirnrnrjqfjqefhuehfefihfprfhr iforrihrp9trhbtuhh89uu85u9ut4bnen iorfirfnejevbeilnvreg89fhrfnerbrnvekjerjbelhlrev vln il nrunrvnj rrh reioufreireorejgeriorerpfpr ggergjreoighrrrihjr
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2.1 2.2 epicenter and focus and magnitude and intensity.pptx
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Earthquake.pptx
- 2. Introduction Internal and external forces The internal forces cause vertical and horizontal movements of the Earth’s crust. Responsible for formation of relief features. Internal forces cause earthquake and volcano.
- 3. What is earthquake? It is a tremor or vibration caused by sudden movement of a part of the Earth’s crust. Focus: The tremor originates at a point. Seismic waves: It is produced by vibrations or tremors. Epicenter: Point on the Earth’s surface vertically above the focus. Seismograph or Seismometer: The intensity of earthquake is measured by an instrument.
- 5. Earthquake is measured by an instrument called Seismometer or Seismograph on Richter scale. Seismometer Seismograph
- 6. Causes of Earthquake Natural Faulting and folding Volcanic activity Gaseous expansion and contraction inside the Earth. Man-made Deep underground mining Blasting of rocks by dynamite Nuclear explosion
- 7. Effect of Earthquake Loss to lives and properties Causes disasters like landslides, floods, tsunamis and fire
- 8. Earthquake in Bhutan Located in the young fold Himalayan mountains. Lies in one of the active seismic zones in the world and experiences numerous earthquakes. History of Earthquakes in Bhutan 21st Jan. 1941- 6.75 magnitude 2009- 6.1 magnitude 2011- 6.9 magnitude
- 9. Thimphu, Paro, Punakha, Bumthang and Trongsa fall in low and moderate hazard areas. Haa, Chukha, Transhigang, Mongar, Lhuentse, Trashiyangtse and the southern dzongkhags are in high and very high risk areas.
- 11. Why there is a frequent occurrence of the earthquake in Bhutan? Bhutan is located in the active earthquake region. Due to the collision of the Indian and Eurasian tectonic plates. The collision has uplifted the Himalayas and created active fault lines in Bhutan. The pressure is created along these fault lines. Bhutan lies on several active fault lines, including the Main Himalayan Thrust fault.