Geology
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Valley College
Earthquake Epicenter Location Exercise
Materials
Needed:
Pencil
Compass
Ruler
- Determine the S-P
interval times for the three seismograms.
Station
|
P Wave Arrival
|
S Wave Arrival
|
S-P interval
|
|
Sitka,
AK |
|
|
|
|
Charlotte,
NC |
|
|
|
|
Honolulu,
HI |
|
|
|
8:11 8:13 8:15 8:09 8:07
- Determine the distance
to the epicenter for each seismic station using the S-P interval graph.
miles minutes
|
Sitka,
AK |
miles |
|
Charlotte,
NC |
miles |
|
Honolulu,
HI |
miles |
- Plot the locations of
the three seismic stations using the following geographic coordinates on the attached map of Earth.
Sitka, Ak: 57� N Latitude,
135� W Longitude
Charlotte, NC: 35� N
Latitude, 81� W Longitude
Honolulu, HI: 21� N
Latitude, 158� W Longitude
- What is the latitude
and longitude of the earthquake epicenter? �____________________
- What is the name of the
major fault that occurs near the epicenter?_________________