About the Realtime Earthquake Maps

Frequently Asked Questions (FAQ) about the Realtime Earthquakes information

USGS Earthquake Magnitude Policy

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Realtime Earthquakes Data Sources & Contributing Networks

US, International, and offshore regions:

• National Earthquake Information Center (NEIC)
• West Coast & Alaska Tsunami Warning Center

Alaska:

• Alaska Earthquake Information Center (AEIC)

Central and Southeastern US data:

• Cooperative Central and Southeast U.S. Seismic Network CERI/SLU/VPI/USC/...

  The participating institutions are:

  • Auburn University
  • Charleston Southern University
  • Delaware Geological Survey
  • Georgia Tech
  • Maryland Gelogical Survey Seismic Network
  • University of Memphis - Center of Earthquake Research and Information (CERI)
  • Millersville University
  • Saint Louis University (SLU)
  • State of Tennessee
  • University of Tennessee/Tennessee Valley Authority - Joint Institude for Energy and Environment
  • University of Florida
  • University of North Carolina
  • University of South Carolina (USC)
  • Virginia Tech (VPI)
  • Westinghouse Savannah River Co.

Dominican Republic data:

• Dominican Republic Seismic Network, Instituto Sismologico Universitario (UASD)

Hawaiian data:

• Hawaiian Volcano Observatory Network

Nevada data:

• Univ. of Nevada, Reno, Seismological Laboratory

Northeast data:

• Lamont-Doherty Cooperative Seismographic Network (LCSN)

  The participating institutions are:

  • Lamont-Doherty Earth Observatory of Columbia University
  • New England Seismic Network, Weston Observatory
    Department of Geology and Geophysics, Boston College
  • New England Seismic Network, MIT
  • Geological Survey of Canada
  • Ohio Seismic Network
  • Southern Ontario Seismic Network
  • US National Seismograph Network

Northern California data:

• Northern California Seismic Net (NCSN)
• Berkeley Digital Seismic Net (BDSN)

  The participating institutions are:

  • U.S. Geological Survey, Menlo Park
  • Univ. of California, Berkeley, Seismological Laboratory
  • Data archive at Northern California Earthquake Data Center (NCEDC)

Pacific Northwest data:

• Pacific Northwest Seismograph Network
  

  The participating institutions are:

  • Univ. of Washington, Dept. of Earth and Space Sciences
  • Oregon State University Geophysics Group
  • University of Oregon Department of Geology

Puerto Rico data:

• University of Puerto Rico, Puerto Rico Seismic Network

Southern California data:

• Southern California Seismic Network (SCSN): a cooperative project.
  

  The participating institutions are:

  • U.S. Geological Survey, Pasadena
  • California Institute of Technology, Seismological Laboratory
  • University of California, San Diego
  • Data archive at Southern California Earthquake Center, Data Center

Utah and Yellowstone data:

• Univ. of Utah Seismograph Stations, Salt Lake City

All members of the ...

• Advanced National Seismic System (ANSS)

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Map Information and Data Sources

Map Software, Coastlines, State and International Boundaries

• Generic Mapping Tool (GMT) by Wessel and Smith
• NOAA medium resolution digital vector shoreline

Populated Places:

• U.S. Census Bureau

Faults

• Preliminary data from Quaternary Fault and Fold Database for the United States (web page under construction at the USGS Geologic Hazards Program).

Highways and Roads

• National Atlas of the United States

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Network Contacts

National Earthquake Information Center (NEIC)

U.S. Geological Survey
National Earthquake Information Center
Box 25046, DFC, MS 967
Denver, Colorado 80225

Earthquake Information Line: 303-273-8516
(Recorded information on earthquakes occurring during the previous 24 hours.)
Operations: 303-273-8500
Fax: 303-273-8450
Web Page: http://earthquake.usgs.gov/regional/neic/
E-mail: sedas@neis.cr.usgs.gov

Alaska Earthquake Information Center (AEIC)

Alaska Earthquake Information Center (AEIC)
Geophysical Institute
University of Alaska Fairbanks
903 Koyukuk Drive
Fairbanks, AK 99775-7320

Voice: 907-474-7320
Fax: 907-474-7125
Web Page: http://www.aeic.alaska.edu/
E-mail: webmaster@giseis.akaska.edu

West Coast and Alaska Tsunami Warning Center/NOAA/NWS

West Coast and Alaska Tsunami Warning Center/NOAA/NWS
910 S. Felton St.
Palmer, AK 99645

Web Page: http://wcatwc.arh.noaa.gov/
E-mail: wcatwc@wcatwc.gov

Cooperative New Madrid Seismic Network

Center for Earthquake Research and Information
Campus Box 526590
The University of Memphis
Memphis, TN 38152

Voice: 901-678-2007
Fax: 901-678-4734
Web Page: http://folkworm.ceri.memphis.edu/
E-mail: withers@ceri.memphis.edu

Inter-Mountain West Seismic Networks

Earthquake Studies Office
Montana Bureau of Mines and Geology
1300 West Park Street
Butte, MT 59701-8997

Voice: 406-496-4332
Fax: 406-496-4451
Web Page: http://mbmgquake.mtech.edu/
E-mail: mstickney@mtech.edu

Nevada Seismological Laboratory
University of Nevada, Reno
Reno, Nevada

Voice: 775-784-4975
Fax: 775-784-4165
Web Page: http://www.seismo.unr.edu/

University of Utah Seismograph Stations
135 South 1460 East
Salt Lake City, Utah 84112-0111

Voice: 801-581-6274
Fax: 801-585-5585
Web Page: http://www.seis.utah.edu/
E-mail: webmaster@seis.utah.edu

Hawaiian Volcano Observatory Network

U.S. Geological Survey
Hawaiian Volcano Observatory
P O Box 51
Hawaii National Park, Hawaii 96718

Voice: 808-967-7328
Fax: 808-967-8890
Web Page: http://hvo.wr.usgs.gov/
Web Page: http://elsei.wr.usgs.gov/results/seismic/recenteqs/
E-mail: hvowebmaster@hvo.wr.usgs.gov

Northeast

Lamont-Doherty Cooperative Seismographic Network (LCSN)
Lamont-Doherty Earth Observatory of Columbia University
Palisades, NY 10964

Voice: 845-365-8365
Fax: 845-365-8150
Web Page: http://www.ldeo.columbia.edu/LCSN/
E-mail: jha@ldeo.columbia.edu

Weston Observatory
Department of Geology and Geophysics, Boston College
381 Concord Road Weston, MA 02493-1340

Voice: 617-552-8300
Fax: 617-552-8388
Web Page: http://www.bc.edu/bc_org/avp/cas/wesobs/
E-mail: weston.observatory@bc.edu

Massachusetts Institute of Technology (MIT)

Web Page: http://eaps.mit.edu/erl/

Northern California Seismic Network

U.S. Geological Survey
Seismology Section
345 Middlefield Road - MS 977
Menlo Park, CA 94025

Earthquake Info: 650-329-4025
Voice: 650-329-4085
Fax: 650-329-5163
Web Page: http://quake.wr.usgs.gov/
E-mail: ncsn@andreas.wr.usgs.gov

U.C. Berkeley Seismological Laboratory
207 McCone Hall
U.C. Berkeley
Berkeley, CA 94720-4760

Earthquake Info: 510-642-2160
Voice: 510-642-3977
Fax: 510-643-5811
Web Page: http://www.seismo.berkeley.edu/
E-mail: www@seismo.berkeley.edu

Pacific Northwest Seismic Network

Univ. of Washington, Dept. of Earth and Space Sciences
Box 351310
Seattle, WA 98195-1310

Earthquake Info: 206-543-7010
Voice: 206-685-8180 (lab) or 206-543-1190 (department)
Fax: 206-543-0489
Web Page: http://www.ess.washington.edu/SEIS/PNSN/welcome.html
E-mail: seis_web@ess.washington.edu

Puerto Rico Seismic Network

Puerto Rico Seismic Network
Department of Geology
University of Puerto Rico at Mayagüez
PO Box 9017
Mayagüez, PR 00681-9017

Voice: 787-833-8433
Fax: 787-265-1684
Web Page: http://redsismica.uprm.edu/english/
E-mail: staff@redsismica.uprm.edu

Southern California Seismic Network

Southern California Seismic Network
U.S. Geological Survey - Caltech Seismological Laboratory
Pasadena, California

EQ Info: 626/395-6977
Voice: 626/583-7823 or 626/395-6919
Fax: 626/583-7827
Web Page: http://earthquake.usgs.gov/regional/sca/
Web Page: http://www.seismolab.caltech.edu/
Email: lisa@usgs.gov

Dominican Republic Seismic Network

Dominican Republic Seismic Network
Instituto Sismologico Universitario (UASD)

Voice: 809-533-5900
Fax: 809-535-7654
Web Page: http://uasd.edu.do/transfer/sismologico/principal.htm