1. Today  Hand in any work needed.  Check the list in the back, if you owe something.  Get out a small piece of paper, PUT YOUR NAME ON IT.  When bell rings the quiz will start and you will have 1 minute per question to answer.

2. Question 1  What is that Lat/ Long of Slide Mt, NY?

3. Question 2  Name the 2 plates at the Chile Trench.

4. Question 3  Which of the two plates at the Chile Trench is the overriding plate?

5. Question 4  The P-wave arrives at 1:02:15 and the S-wave arrives at 1:07:55, how far away did the EQ occur?

6. Answers  42 o N 74 o 30’ W  Nazca and South American  South American  4000km

7. Tsunami NOT a Tidal wave!!

8. What is a Tsunami?  Japanese for harbor wave.  It is a, large wave that uses the whole water column to transfer its energy.  In English, a really big wave!

9. Why not a Tidal Wave?  A tidal wave is caused by tides (earth and moon interaction) Anywhere from 1mm to 20cmAnywhere from 1mm to 20cm  A Tsunami is Anywhere from 1m to 300 mAnywhere from 1m to 300 m Tidal Wave Tsunami Wave GOODBAD

10. So, What is a Tsunami?  A wave caused by movement of water under the water. Like an EarthquakeLike an Earthquake Or a large landslideOr a large landslide

12. Christmas Tsunami  December 26, 2004 – An earthquake (9.0) moved the water off the coast of Indonesia.  Within hours a tsunami hits the coasts.

13. Tsunami Wave Traveling

14. How tsunamis kill?  Flooding  Fast larges waves catch people off guard  Knock over building  Destroy roads  Remove anything in its way that’s not built strongly

15. How do we save or predict tsunamis?  If it is a wave we can measure the changes in waves in the ocean with buoys. If they move vertical more then normal there is a warning.  If there is an earthquake nearby then their might be a tsunami wave.