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EXERCISES
Examination and evaluation of real-time oceanographic data on the internet

PRELIMINARY

I: TECTONICS
and OCEAN BASINS
Earthquakes and Plate Tectonics
Spreading Rates
CA Earthquakes
Volcanoes
Topography of the Ocean Floor
History of Ocean Basins

II: OCEANS/ ATMOSPHERIC GASES

III: OCEAN/
ATMOSPHERE DYNAMICS

IV: INTEGRATED TOPICS

 
CALIFORNIAN EARTHQUAKES

Introduction to Questions on Earthquakes:


California Earthquakes: Questions pt
Recent Earthquakes in California
Examine the "Index Map of Recent Earthquakes in Califonia-Nevada" located at:
http://quake.usgs.gov/recenteqs/latest.htm
1. Does the occurrence of earthquakes generally correspond with designated hazardous faults and fault zones shown in brown?  HINT 3
From the " Index Map of Recent Earthquakes in California-Nevada " follow the link entitled "all earthquakes" to view the listing entitled "All Earthquakes on Index Map":
http://quake.wr.usgs.gov/recenteqs/Quakes/quakes0.html
This listing provides a record of all earthquakes recorded in the last week (168 hours). In answering some of these questions you may need to provide the date, time and location (place name) of specific earthquakes.
2. Do you expect there to be any deep (>100km) earthquakes on this list?  Explain the reasons for your answer.  HINT
2
3. What are the depths of the shallowest and deepest earthquakes from the list?
(Give details of their dates, times and locations)
2
4. What are the magnitudes of the weakest and strongest earthquakes from the list?  (Give details of their dates, times and locations)
2
From the " Index Map of Recent Earthquakes in California-Nevada " follow the link entitled "big earthquakes" to view the listing entitled "Big Earthquakes on Index Map":
http://quake.wr.usgs.gov/recenteqs/Quakes/quakes.big.html
This listing provides a record of all earthquakes recorded in the last week (168 hours) that were of magnitude (Richter scale) of 3.0 or greater.
5. How many earthquakes are on this list? 1

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Department of Geological Sciences, 
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Phone: (812) 855-5582  Last updated: 1 October 2002
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