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Earthquakes -- Observations

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View Resource Earthquake Hazards Program: NEIC Near Real Time Earthquake List

The United States Geological Survey's National Earthquake Information Center site offers readers near real time updates of seismological events worldwide. As one can gather from a glimpse at the report, our planet is in a near constant state of geophysical change and upheaval, given the numerous earthquakes registered on a daily basis by the NEIC, sometimes up to a dozen or more. Readers will...

https://earthquake.usgs.gov/earthquakes/map/
View Resource PEER Ground Motion Database

Processed by Dr. Walt Silva of Pacific Engineering and supported by the Pacific Earthquake Engineering Research Center (PEER) at the University of California Berkley, the PEER Strong Motion Database "contains 1557 records from 143 earthquakes from tectonically active regions." Searches can be done by earthquake, type of plate movement (e.g., strike slip), magnitude, and several other criteria. The...

https://ngawest2.berkeley.edu/
View Resource TriNet

TriNet is a multi-functional seismic network for earthquake research, monitoring, and computerized alerts. The collaborative project among governmental and educational institutions hopes to "create a better, more effective real-time earthquake information system for Southern California." The main focus of the site is the up-to-date availability of earthquake occurrences shown on various...

http://www.trinet.org/
View Resource Puente Hills Fault System Under Los Angeles Represents New Threat to the Region

While the media tends to cover the well-known San Andreas fault when speaking about the potential danger of a massive earthquake in the Los Angeles basin, the Puente Hills fault system may in fact be equally, if not more, threatening. Discovered four years ago, the extensive fault system is capable of generating earthquakes up to a 7.5 on the Richter scale, and it runs immediately under downtown...

https://scout.wisc.edu/report/2003/0404
View Resource Earthquake Notification Services

The US Geological Survey Earthquake Hazards Web site contains the Earthquake Notification Services page and service. Users can subscribe to three email lists that include BIGQUAKE -- which sends a message whenever an earthquake with a magnitude of 5.5 or greater occurs anywhere in the world or a magnitude of 4.5 or greater occurs within the 50 US states -- and QEDPOST -- which sends a daily...

https://sslearthquake.usgs.gov/ens/
View Resource The Pacific Northwest Seismograph Network

While earthquakes in the state of California may garner most of the attention of the major media, the Pacific Northwest continues to be a region of intense seismic activity. Based at the University of Washington (within the Department of Earth and Space Sciences), and funded by the USGS and several other organizations, the Pacific Northwest Seismograph Network provides a host of detailed materials...

https://pnsn.org/
View Resource University of California - San Diego: Broadband Seismic Data Collection Center

The University of California - San Diego's Broadband Seismic Data Collection Center offers real-time and archived data, maps, and graphs of measured earthquakes from all over the world. The easily navigable website supplies information about regional networks, arrays, and portable deployments that have been collected and analyzed by the Center. Users can find extensive, comprehensible materials on...

http://eqinfo.ucsd.edu/
View Resource The New Madrid Compendium: A Comprehensive Source of References for the 1811-1812 Earthquakes

"The New Madrid earthquakes of 1811-1812 were one of the most dramatic natural disasters to strike the North American continent." At this website, the Center for Earthquake Research and Information (ERI) supplies numerous archived eyewitness accounts to these earthquakes. Visitors can search through reports about these earthquakes from three databases. Researchers can find countless references of...

http://www.ceri.memphis.edu/compendium/index.html
View Resource OhioSeis: The Ohio Seismic Network

The mission of the Ohio Seismic Network, with 25 stations strategically located throughout the state, is to "detect and precisely locate earthquakes within the state's borders, report the severity and potential damage from an event to emergency response officials, and to rapidly respond to media and citizen inquiries after a felt earthquake." Seismologists can view waveform data, find data on the...

http://geosurvey.ohiodnr.gov/earthquakes-ohioseis/ohioseis-h...
View Resource The New World-wide Earthquake Locator

The World-Wide Earthquake Locator, developed at the University of Edinburgh, "aims to provide up-to-date information and detailed dynamic maps of earthquakes across the world within a maximum of 24 hours of their occurrence." Through online, interactive maps, users can determine the location, size, and time of recent earthquakes. While the authors concede that the prediction model is inaccurate,...

https://www.geos.ed.ac.uk/~quakes/v6_beta/map.html
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