• Like
Lesson 4
Upcoming SlideShare
Loading in...5
×
Uploaded on

 

More in: Technology , Education
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
291
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
7
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Earthquakes
  • 2. What is an earthquake
  • 3. What is an earthquakeEarthquake: Sudden movement of the Earth’s crust
  • 4. What is an earthquakeEarthquake: Sudden movement of the Earth’s crustEarthquakes occur when rock that is stuck togethersuddenly slips
  • 5. What is an earthquakeEarthquake: Sudden movement of the Earth’s crustEarthquakes occur when rock that is stuck togethersuddenly slipsFOCUS: Where the slipping rock begins
  • 6. What is an earthquakeEarthquake: Sudden movement of the Earth’s crustEarthquakes occur when rock that is stuck togethersuddenly slipsFOCUS: Where the slipping rock beginsEPICENTER: Point on earth’s surface where wavesstart spreading out
  • 7. What is an earthquakeEarthquake: Sudden movement of the Earth’s crustEarthquakes occur when rock that is stuck togethersuddenly slipsFOCUS: Where the slipping rock beginsEPICENTER: Point on earth’s surface where wavesstart spreading outEarthquakes happen along boundaries of tectonicplates
  • 8. What waves do Earthquakes make
  • 9. What waves do Earthquakes makeSeismometer: Is an instrument that detects andmeasures waves produced by an earthquake
  • 10. What waves do Earthquakes makeSeismometer: Is an instrument that detects andmeasures waves produced by an earthquakeThree types of Waves: P Waves: Primary waves: fastest, and they travel through both solid and liquids S Waves: Secondary Waves: Move only through solids Surface Waves: Slowest moving waves, and travel along earths surface and cause damag
  • 11. How is an earthquakes energy measured
  • 12. How is an earthquakes energy measuredMagnitude: This is the measure of the amountof energy released by an earthquake
  • 13. How is an earthquakes energy measuredMagnitude: This is the measure of the amountof energy released by an earthquakeRichter Scale measures magnitude at theepicenter
  • 14. How is an earthquakes energy measuredMagnitude: This is the measure of the amountof energy released by an earthquakeRichter Scale measures magnitude at theepicenterMercalli scale measures what people feel
  • 15. How is an earthquakes energy measuredMagnitude: This is the measure of the amountof energy released by an earthquakeRichter Scale measures magnitude at theepicenterMercalli scale measures what people feelAftershocks: Earthquakes with lesser magnitude
  • 16. Tsunamis
  • 17. TsunamisEarthquakes that occur underwater cause these
  • 18. TsunamisEarthquakes that occur underwater cause theseTsunamis are huge waves that are produced bythe earthquakes
  • 19. TsunamisEarthquakes that occur underwater cause theseTsunamis are huge waves that are produced bythe earthquakesTsunamis only happen after a 6.5 or largerearthquake occur
  • 20. How can people prepare
  • 21. How can people prepareNew construction methods
  • 22. How can people prepareNew construction methodsRubber and steel between building andfoundation