Seismic Activity

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Seismic Activity

California has 200 or more faults capable of producing large earthquakes. Some
of the faults are hidden and some visible at the surface. The biggest
concentration of faults are in the San Adreas fault zone and the San Jacinto
fault zone. Because of California’s large amount of Fault lines the United
States Geological Survey, the California division of mines and Geology, the
California Institute and other agencies have developed the Southern California
Earthquake Center and TriNet Seismic network. This organization monitors the
earthquake activity. The seismographs are linked to a computer using a mix of
GPS and Landlines . The seismography records are sent to a computer within a few
minutes. The information is a available to the public via the Internet. Data at
this site is saved to a catalog that are searchable by various parameters. After
creating the project using ArcView GIS or Arc View 3D analyst, the next step was
to determine the project’s objective and scope. Once the data was obtained and
converted, maps could be created and analysis performed. The projects objective
was to ascertain whether there was a pattern to the earthquakes in Southern
California. The area chosen stretches approximately 67 miles by 50 miles. The
time frames was 6 months. The SCEC Data center Earthquake and Hypocenter and
Phase database was queried for data. Available search parameters were data about
magnitudes, start and end date, minimum and maximum depths and Longitude and
Latitude. A second site...

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