SlideShare a Scribd company logo
GOOD DAY EVERYONE!
THE FOCUS AND EPICENTER
OF AN EARTHQUAKE
MA’AM JEN
PARTS OF A FAULT
• Hanging Wall- the block above the fault.
• Foot Wall- the block below the fault.
• Fault Plane- is the plane that represents the
fracture surface of a fault.
• Fault Scarp- is a small step or offset on the
ground surface where one side of a fault has
moved vertically with respect to the other.
• Fault Line- is a place where the fault can be
seen or mapped on the surface.
THE FOCUS AND EPICENTER
FOCUS (HYPOCENTER)-
(hypo means under or
beneath). The focus is the
origin or the center of the
earthquake. It is located
underground. The point within
earth where rock under stress
breaks is called focus.
THE FOCUS AND EPICENTER
EPICENTER- (epi means
surface) A point on the
surface of an earthquake
which is directly above the
focus of an earthquake and
where the earthquake
vibrations reach first. Usually
what is used to locate the
position of an earthquake.
WHAT’S MORE?
Using your fault model, trace the
epicenter of an earthquake.
ACTIVITY 1.3
In a ¼ sheet of paper, differentiate
the epicenter of an earthquake
from its focus.
ASSESSMENT
Directions: Write your answer at the back of your ¼ sheet of paper.
1. Is the origin or the center of the earthquake.
a. Fault Line
b. Fault Plane
c. Epicenter
d. Focus
2. A point on the surface of an earthquake which is directly above
the focus of an earthquake and where the earthquake vibrations
reach first.
a. Fault Line
b. Fault Plane
c. Epicenter
d. Focus
3. Is the plane that represents the fracture surface of a fault.
a. Fault Line
b. Fault Plane
c. Foot Wall
d. Hanging Wall
4. Is the block above the fault.
a. Fault Line
b. Fault Plane
c. Foot Wall
d. Hanging Wall
5. Is the block below the fault.
a. Fault Line
b. Fault Plane
c. Foot Wall
d. Hanging Wall
ANSWER:
1.D
2.C
3.B
4.D
5.C

More Related Content

Similar to FOCUS AND EPICENTER.pptx

what to do when earthquake a presentation.pptx
what to do when earthquake a presentation.pptxwhat to do when earthquake a presentation.pptx
what to do when earthquake a presentation.pptx
304129
 
Science 8_Week2_Earthquakes and Faults_quiz.pptx
Science 8_Week2_Earthquakes and Faults_quiz.pptxScience 8_Week2_Earthquakes and Faults_quiz.pptx
Science 8_Week2_Earthquakes and Faults_quiz.pptx
laudash1
 
Plate Tectonics
Plate TectonicsPlate Tectonics
Plate Tectonics
mungo13
 
Geometry of fault
Geometry of fault Geometry of fault
Geometry of fault
AshishNamdeo13
 
Fault'classification of fault and mechanism of faulting
Fault'classification of fault  and mechanism of faultingFault'classification of fault  and mechanism of faulting
Fault'classification of fault and mechanism of faulting
Shivam Jain
 
Earthquakes and volcanoes new study guide
Earthquakes and volcanoes new study guideEarthquakes and volcanoes new study guide
Earthquakes and volcanoes new study guideharvey09
 
Earthquake
EarthquakeEarthquake
Earth quake resistant structures
Earth quake resistant structuresEarth quake resistant structures
Earth quake resistant structuresAkhil Padiga
 
Earthquake
EarthquakeEarthquake
Earthquake
Jenimae Arances
 
DISTRIBUTION.pptx
DISTRIBUTION.pptxDISTRIBUTION.pptx
DISTRIBUTION.pptx
RoyoMel
 
Fault - Parts & Types - Field Evidences
Fault - Parts & Types - Field Evidences Fault - Parts & Types - Field Evidences
Fault - Parts & Types - Field Evidences
Anandu V
 
Earthquake
EarthquakeEarthquake
Earthquake
Abhinav Vishnoi
 
What is a fault and what are the different types
What is a fault and what are the different typesWhat is a fault and what are the different types
What is a fault and what are the different typesRomel Villarubia
 
Fault
FaultFault
Geological structures folds faults joints types of folds joints
Geological structures folds faults joints types of folds jointsGeological structures folds faults joints types of folds joints
Geological structures folds faults joints types of folds joints
Amjad Ali Soomro
 
Earthquakes An interactive quiz
Earthquakes   An interactive quizEarthquakes   An interactive quiz
Earthquakes An interactive quiz
Qwizdom UK
 
Earthquake: The Unpredictable Hazard
Earthquake: The Unpredictable HazardEarthquake: The Unpredictable Hazard
Earthquake: The Unpredictable Hazard
Nazim Naeem
 
SCIENCE 10 QUIZ Q1 m1 sept 20.pptx
SCIENCE 10 QUIZ Q1 m1 sept 20.pptxSCIENCE 10 QUIZ Q1 m1 sept 20.pptx
SCIENCE 10 QUIZ Q1 m1 sept 20.pptx
Jionesa Garcia
 
Elements of fault
 Elements  of fault Elements  of fault
Elements of fault
parag sonwane
 
EARTHQUAKE AND FAULTS, Epicenter and Focus .pptx
EARTHQUAKE AND FAULTS, Epicenter and Focus .pptxEARTHQUAKE AND FAULTS, Epicenter and Focus .pptx
EARTHQUAKE AND FAULTS, Epicenter and Focus .pptx
DanielManuel26
 

Similar to FOCUS AND EPICENTER.pptx (20)

what to do when earthquake a presentation.pptx
what to do when earthquake a presentation.pptxwhat to do when earthquake a presentation.pptx
what to do when earthquake a presentation.pptx
 
Science 8_Week2_Earthquakes and Faults_quiz.pptx
Science 8_Week2_Earthquakes and Faults_quiz.pptxScience 8_Week2_Earthquakes and Faults_quiz.pptx
Science 8_Week2_Earthquakes and Faults_quiz.pptx
 
Plate Tectonics
Plate TectonicsPlate Tectonics
Plate Tectonics
 
Geometry of fault
Geometry of fault Geometry of fault
Geometry of fault
 
Fault'classification of fault and mechanism of faulting
Fault'classification of fault  and mechanism of faultingFault'classification of fault  and mechanism of faulting
Fault'classification of fault and mechanism of faulting
 
Earthquakes and volcanoes new study guide
Earthquakes and volcanoes new study guideEarthquakes and volcanoes new study guide
Earthquakes and volcanoes new study guide
 
Earthquake
EarthquakeEarthquake
Earthquake
 
Earth quake resistant structures
Earth quake resistant structuresEarth quake resistant structures
Earth quake resistant structures
 
Earthquake
EarthquakeEarthquake
Earthquake
 
DISTRIBUTION.pptx
DISTRIBUTION.pptxDISTRIBUTION.pptx
DISTRIBUTION.pptx
 
Fault - Parts & Types - Field Evidences
Fault - Parts & Types - Field Evidences Fault - Parts & Types - Field Evidences
Fault - Parts & Types - Field Evidences
 
Earthquake
EarthquakeEarthquake
Earthquake
 
What is a fault and what are the different types
What is a fault and what are the different typesWhat is a fault and what are the different types
What is a fault and what are the different types
 
Fault
FaultFault
Fault
 
Geological structures folds faults joints types of folds joints
Geological structures folds faults joints types of folds jointsGeological structures folds faults joints types of folds joints
Geological structures folds faults joints types of folds joints
 
Earthquakes An interactive quiz
Earthquakes   An interactive quizEarthquakes   An interactive quiz
Earthquakes An interactive quiz
 
Earthquake: The Unpredictable Hazard
Earthquake: The Unpredictable HazardEarthquake: The Unpredictable Hazard
Earthquake: The Unpredictable Hazard
 
SCIENCE 10 QUIZ Q1 m1 sept 20.pptx
SCIENCE 10 QUIZ Q1 m1 sept 20.pptxSCIENCE 10 QUIZ Q1 m1 sept 20.pptx
SCIENCE 10 QUIZ Q1 m1 sept 20.pptx
 
Elements of fault
 Elements  of fault Elements  of fault
Elements of fault
 
EARTHQUAKE AND FAULTS, Epicenter and Focus .pptx
EARTHQUAKE AND FAULTS, Epicenter and Focus .pptxEARTHQUAKE AND FAULTS, Epicenter and Focus .pptx
EARTHQUAKE AND FAULTS, Epicenter and Focus .pptx
 

Recently uploaded

Large scale production of streptomycin.pptx
Large scale production of streptomycin.pptxLarge scale production of streptomycin.pptx
Large scale production of streptomycin.pptx
Cherry
 
general properties of oerganologametal.ppt
general properties of oerganologametal.pptgeneral properties of oerganologametal.ppt
general properties of oerganologametal.ppt
IqrimaNabilatulhusni
 
extra-chromosomal-inheritance[1].pptx.pdfpdf
extra-chromosomal-inheritance[1].pptx.pdfpdfextra-chromosomal-inheritance[1].pptx.pdfpdf
extra-chromosomal-inheritance[1].pptx.pdfpdf
DiyaBiswas10
 
Hemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptxHemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptx
muralinath2
 
Hemoglobin metabolism_pathophysiology.pptx
Hemoglobin metabolism_pathophysiology.pptxHemoglobin metabolism_pathophysiology.pptx
Hemoglobin metabolism_pathophysiology.pptx
muralinath2
 
Richard's aventures in two entangled wonderlands
Richard's aventures in two entangled wonderlandsRichard's aventures in two entangled wonderlands
Richard's aventures in two entangled wonderlands
Richard Gill
 
justice-and-fairness-ethics with example
justice-and-fairness-ethics with examplejustice-and-fairness-ethics with example
justice-and-fairness-ethics with example
azzyixes
 
Comparative structure of adrenal gland in vertebrates
Comparative structure of adrenal gland in vertebratesComparative structure of adrenal gland in vertebrates
Comparative structure of adrenal gland in vertebrates
sachin783648
 
Mammalian Pineal Body Structure and Also Functions
Mammalian Pineal Body Structure and Also FunctionsMammalian Pineal Body Structure and Also Functions
Mammalian Pineal Body Structure and Also Functions
YOGESH DOGRA
 
The ASGCT Annual Meeting was packed with exciting progress in the field advan...
The ASGCT Annual Meeting was packed with exciting progress in the field advan...The ASGCT Annual Meeting was packed with exciting progress in the field advan...
The ASGCT Annual Meeting was packed with exciting progress in the field advan...
Health Advances
 
erythropoiesis-I_mechanism& clinical significance.pptx
erythropoiesis-I_mechanism& clinical significance.pptxerythropoiesis-I_mechanism& clinical significance.pptx
erythropoiesis-I_mechanism& clinical significance.pptx
muralinath2
 
Citrus Greening Disease and its Management
Citrus Greening Disease and its ManagementCitrus Greening Disease and its Management
Citrus Greening Disease and its Management
subedisuryaofficial
 
ESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptxESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptx
muralinath2
 
GBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram StainingGBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram Staining
Areesha Ahmad
 
Anemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditionsAnemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditions
muralinath2
 
FAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable PredictionsFAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable Predictions
Michel Dumontier
 
Unveiling the Energy Potential of Marshmallow Deposits.pdf
Unveiling the Energy Potential of Marshmallow Deposits.pdfUnveiling the Energy Potential of Marshmallow Deposits.pdf
Unveiling the Energy Potential of Marshmallow Deposits.pdf
Erdal Coalmaker
 
Orion Air Quality Monitoring Systems - CWS
Orion Air Quality Monitoring Systems - CWSOrion Air Quality Monitoring Systems - CWS
Orion Air Quality Monitoring Systems - CWS
Columbia Weather Systems
 
Cancer cell metabolism: special Reference to Lactate Pathway
Cancer cell metabolism: special Reference to Lactate PathwayCancer cell metabolism: special Reference to Lactate Pathway
Cancer cell metabolism: special Reference to Lactate Pathway
AADYARAJPANDEY1
 
insect taxonomy importance systematics and classification
insect taxonomy importance systematics and classificationinsect taxonomy importance systematics and classification
insect taxonomy importance systematics and classification
anitaento25
 

Recently uploaded (20)

Large scale production of streptomycin.pptx
Large scale production of streptomycin.pptxLarge scale production of streptomycin.pptx
Large scale production of streptomycin.pptx
 
general properties of oerganologametal.ppt
general properties of oerganologametal.pptgeneral properties of oerganologametal.ppt
general properties of oerganologametal.ppt
 
extra-chromosomal-inheritance[1].pptx.pdfpdf
extra-chromosomal-inheritance[1].pptx.pdfpdfextra-chromosomal-inheritance[1].pptx.pdfpdf
extra-chromosomal-inheritance[1].pptx.pdfpdf
 
Hemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptxHemostasis_importance& clinical significance.pptx
Hemostasis_importance& clinical significance.pptx
 
Hemoglobin metabolism_pathophysiology.pptx
Hemoglobin metabolism_pathophysiology.pptxHemoglobin metabolism_pathophysiology.pptx
Hemoglobin metabolism_pathophysiology.pptx
 
Richard's aventures in two entangled wonderlands
Richard's aventures in two entangled wonderlandsRichard's aventures in two entangled wonderlands
Richard's aventures in two entangled wonderlands
 
justice-and-fairness-ethics with example
justice-and-fairness-ethics with examplejustice-and-fairness-ethics with example
justice-and-fairness-ethics with example
 
Comparative structure of adrenal gland in vertebrates
Comparative structure of adrenal gland in vertebratesComparative structure of adrenal gland in vertebrates
Comparative structure of adrenal gland in vertebrates
 
Mammalian Pineal Body Structure and Also Functions
Mammalian Pineal Body Structure and Also FunctionsMammalian Pineal Body Structure and Also Functions
Mammalian Pineal Body Structure and Also Functions
 
The ASGCT Annual Meeting was packed with exciting progress in the field advan...
The ASGCT Annual Meeting was packed with exciting progress in the field advan...The ASGCT Annual Meeting was packed with exciting progress in the field advan...
The ASGCT Annual Meeting was packed with exciting progress in the field advan...
 
erythropoiesis-I_mechanism& clinical significance.pptx
erythropoiesis-I_mechanism& clinical significance.pptxerythropoiesis-I_mechanism& clinical significance.pptx
erythropoiesis-I_mechanism& clinical significance.pptx
 
Citrus Greening Disease and its Management
Citrus Greening Disease and its ManagementCitrus Greening Disease and its Management
Citrus Greening Disease and its Management
 
ESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptxESR_factors_affect-clinic significance-Pathysiology.pptx
ESR_factors_affect-clinic significance-Pathysiology.pptx
 
GBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram StainingGBSN- Microbiology (Lab 3) Gram Staining
GBSN- Microbiology (Lab 3) Gram Staining
 
Anemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditionsAnemia_ different types_causes_ conditions
Anemia_ different types_causes_ conditions
 
FAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable PredictionsFAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable Predictions
 
Unveiling the Energy Potential of Marshmallow Deposits.pdf
Unveiling the Energy Potential of Marshmallow Deposits.pdfUnveiling the Energy Potential of Marshmallow Deposits.pdf
Unveiling the Energy Potential of Marshmallow Deposits.pdf
 
Orion Air Quality Monitoring Systems - CWS
Orion Air Quality Monitoring Systems - CWSOrion Air Quality Monitoring Systems - CWS
Orion Air Quality Monitoring Systems - CWS
 
Cancer cell metabolism: special Reference to Lactate Pathway
Cancer cell metabolism: special Reference to Lactate PathwayCancer cell metabolism: special Reference to Lactate Pathway
Cancer cell metabolism: special Reference to Lactate Pathway
 
insect taxonomy importance systematics and classification
insect taxonomy importance systematics and classificationinsect taxonomy importance systematics and classification
insect taxonomy importance systematics and classification
 

FOCUS AND EPICENTER.pptx

  • 2.
  • 3. THE FOCUS AND EPICENTER OF AN EARTHQUAKE MA’AM JEN
  • 4. PARTS OF A FAULT • Hanging Wall- the block above the fault. • Foot Wall- the block below the fault. • Fault Plane- is the plane that represents the fracture surface of a fault. • Fault Scarp- is a small step or offset on the ground surface where one side of a fault has moved vertically with respect to the other. • Fault Line- is a place where the fault can be seen or mapped on the surface.
  • 5. THE FOCUS AND EPICENTER FOCUS (HYPOCENTER)- (hypo means under or beneath). The focus is the origin or the center of the earthquake. It is located underground. The point within earth where rock under stress breaks is called focus.
  • 6. THE FOCUS AND EPICENTER EPICENTER- (epi means surface) A point on the surface of an earthquake which is directly above the focus of an earthquake and where the earthquake vibrations reach first. Usually what is used to locate the position of an earthquake.
  • 7. WHAT’S MORE? Using your fault model, trace the epicenter of an earthquake.
  • 8. ACTIVITY 1.3 In a ¼ sheet of paper, differentiate the epicenter of an earthquake from its focus.
  • 9. ASSESSMENT Directions: Write your answer at the back of your ¼ sheet of paper. 1. Is the origin or the center of the earthquake. a. Fault Line b. Fault Plane c. Epicenter d. Focus
  • 10. 2. A point on the surface of an earthquake which is directly above the focus of an earthquake and where the earthquake vibrations reach first. a. Fault Line b. Fault Plane c. Epicenter d. Focus
  • 11. 3. Is the plane that represents the fracture surface of a fault. a. Fault Line b. Fault Plane c. Foot Wall d. Hanging Wall
  • 12. 4. Is the block above the fault. a. Fault Line b. Fault Plane c. Foot Wall d. Hanging Wall
  • 13. 5. Is the block below the fault. a. Fault Line b. Fault Plane c. Foot Wall d. Hanging Wall