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chinatown earthquake Earthquakes Research Guide
Finding Statistics
Earthquake Information Center - part of U.S. Geological Survey located in Golden, Colorado determines, the location and size of all destructive earthquakes that occur worldwide; NEIC collects and provides an extensive seismic database and data center; NEIC pursues an active research program

Northern California Earthquake Data Center (NCEDC) -The NCEDC is a long-term archive and distribution center for seismological and geodetic data for Northern and Central California. Data available from the NCEDC include preliminary list of recent events in Northern California, Global Earthquake Catalogs, Seismic Waveforms, GPS data and Site information.

Saint Louis University Earthquake Center