Browse USGS by Category and Location

Category:	All Categories>topics>biological and physical processes>geologic and hydrologic processes>earthquakes>earthquake occurrences
Location:	Anywhere>United States>California

Here are some USGS Web pages with more information on earthquake occurrences and California:

Earthquake Hazards Program - Northern California Home page for Northern California Earthquake Hazards Program with links to earthquake news, real-time earthquake and shaking maps, earthquake probabilities, latest earthquake information, hazards and preparedness, research and special features. (Score: 1.855)

Earthquake Hazards Program - Southern California Site for the Southern California Earthquake Hazards Program with links to latest quake information, real-time earthquake maps and shaking maps, general information, hazards and preparedness, research, networks, and earthquakes for kids. (Score: 1.855)

Earthquake Did you feel it? Recent significant events by region Lists of recent earthquakes by region with links to forms to fill out by individuals about what they felt during an earthquake plus archives for significant earthquakes, and community internet intensity maps. (Score: 1.000)

Maps of recent earthquake activity in California-Nevada Near-real-time maps of location, ground motion, and shaking intensity of earthquakes in California and Nevada for the past hour, past day, and past week and links to other earthquake information. (Score: 0.996)

Southern California Integrated GPS Network (SCIGN) Homepage for the Southern California Integrated GPS Network (SCIGN) Pasadena Field Office involved in siting and operating GPS stations, data recording, and supplying of earthquake data. Links to GPS data analysis, photos, and technical information. (Score: 0.928)

Earthquake Hazards Program Information on earthquake activity, earthquake science, and earthquake hazard reduction with links to news reports, products and services, educational resources for teachers, glossary, and current U.S. earthquake activity map. (Score: 0.745)

Earthquake: Did you feel it? Project to collect information about ground shaking associated with significant earthquakes. Provides a questsionnaire to fill out what you felt following an earthquake in the United States or in other countries. (Score: 0.744)

Monitoring data of the Long Valley caldera and Mono-Inyo Craters volcanic chain, California Describes the monitoring effort and provides real-time data of the current restless activity of the caldera, including earthquakes, ground deformation, and release of volcanic gas and plus link to volcano monitoring techniques. (Score: 0.722)

Volcano Hazards Program, Long Valley Observatory Overview of the Long Valley Caldera with links to monitoring data including earthquakes and deformations, long-term outlook, volcano hazards in the area, USGS response plan, image gallery, monitoring and topiocal studies, publications and references. (Score: 0.722)

Joshua Tree National Park geology: on shaky ground Description of earthquake that was felt in the park (1999) and links to the earthquake summary; shaded relief map: aerial photos of the rupture zone; shaking intensity maps; damage reports; and seismograph network map of the Joshua Tree region (Score: 0.683)

Ground motion Website to access movies showing ground motion in Seattle and San Jose, seismic arrays in San Jose, examples of earthquake art, and field investigations with maps and images on ground motion in Washington state, Turkey, California, and other areas. (Score: 0.534)

E-mail earthquake notification services Registration for USGS real-time earthquake notification services. (Score: 0.248)

Earthquake information by region Information on earthquake activity, maps, lists of significant earthquakes, earthquake preparedness, and earthquake research arranged by region. (Score: 0.248)

Earthquake lists Links to lists of largest earthquakes in the world and in the United States, earthquake facts and statistics, deaths from earthquakes, earthquakes by magnitude, and significant earthquakes. (Score: 0.248)

Earthquake probabilities and hazard maps Links to national seismic hazards maps, global seismic hazards map, predictive intensity maps, shaking hazards maps and probabilities for California, plus link to a variety of fact sheets on earthquakes. (Score: 0.248)

Interactive national seismic hazard maps, ANSS strong-motion inventory maps Access to seismic hazard maps for the United States showing earthquake ground motions, active faults and the seismicity catalogs. (Score: 0.248)

Maps of recent earthquake activity in the USA Real-time earthquakes maps of the conterminous U.S., Alaska, Hawaii, and Puerto Rico displaying magnitude and location of earthquake activity in the past hour, past day, and past week. (Score: 0.248)

National Earthquake Hazards Reduction Program (NEHRP) external research program The goal of the National Earthquake Hazards Reduction Program (NEHRP)is to mitigate earthquake losses by providing earth science data and assessments. Abstracts, program announcements and projects are provided for the external research program. (Score: 0.248)

National Seismic Hazard Mapping Project, Golden, Colorado Project produces US maps showing probablistic earthquake ground motions used to assess earthquake hazards for construction design and making economic and safety decisions. Includes maps online and ones downloadable in ps,gif, and/or pdf format. (Score: 0.248)

ShakeMap ShakeMap sites provide near-real-time maps of ground motion and shaking intensity following significant earthquakes. (Score: 0.248)

United States National Strong-Motion Program (NSMP) National Strong-Motion Program home page with links to program news, recent events, datasets of digitized accelerograms downloadable as PC .zip and Unix .tar.z files., data processing, stations, research, publications, and personnel. (Score: 0.248)

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About earthquake occurrences:

Definition: Time, location, severity, and mechanism of earthquake events, including the frequency and history of events in a given area.

Used for: earthquake activity maps, earthquake occurrence maps, earthquake seismology, ground motion maps, seismic hazard maps, shaking maps (seismic)