1 / 18

WARM-UP 12/07

WARM-UP 12/07. Copy the following questions down and wait to answer them until I play the sound clip after the bell. 1. What do you think is happening? 2. What kind of room was this recorded in? Why do you think this?. Earthquake Notes.

efuru
Download Presentation

WARM-UP 12/07

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. WARM-UP 12/07 • Copy the following questions down and wait to answer them until I play the sound clip after the bell. • 1. What do you think is happening? • 2. What kind of room was this recorded in? Why do you think this?

  2. Earthquake Notes

  3. Think about these questions, while viewing the following pictures… • 1. Why do earthquakes occur? • 2. Why do some locations such as California and Japan receive so many earthquakes? • 3. Can earthquakes be predicted? • 4. Can we design a city to better withstand an earthquake? • 5. Can we stop earthquakes before they occur? Should we try?

  4. Watch this short clip…

  5. What is an earthquake? • Used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip • Caused by volcanic or magmatic activity • Caused by other sudden stress changes in the earth.

  6. Three Types of Faults Strike-Slip Thrust Normal

  7. What causes earthquakes? • Tectonic plates move past each other causing stress. Stress causes the rock to deform

  8. Primary Waves (P Waves) • A type of seismic wave that compresses and expands the ground • The first wave to arrive at an earthquake http://daphne.meccahosting.com/~a0000e89/insideearth2.htm

  9. Secondary Waves (S Waves) • A type of seismic wave that moves the ground up and down or side to side http://daphne.meccahosting.com/~a0000e89/insideearth2.htm

  10. Surface Waves • Move along the Earth’s surface • Produces motion in the upper crust • Motion can be up and down • Motion can be around • Motion can be back and forth • Travel more slowly than S and P waves • More destructive

  11. How do scientists calculate how far a location is from the epicenter of an earthquake? • Scientists calculate the difference between arrival times of the P waves and S waves • The further away an earthquake is, the greater the time between the arrival of the P waves and the S waves

  12. How are Earthquakes Measured? Richter Scale

  13. How are Earthquakes Measured? Mercalli Intensity Scale Click Link for Interactive Demo http://elearning.niu.edu/simulations/images/S_portfolio/Mercalli/Mercalli_Scale.swf

  14. Google Earth…Real time Earthquakes

More Related