Advanced National Seismic System

The ANSS provides a range of products and services:{{Harvnb|USGS

Circular 1429|2017|pp=12–18}}.

• Earthquake detections, location, depths, magnitudes, and origin times.
• Earthquake source information, including focal mechanisms, moment tensors, and [https://earthquake.usgs.gov/data/finitefault/ finite fault models].
• ShakeAlert: Earthquake early warning messages in California, Oregon, and Washington.
• Immediate notification of earthquakes to government and emergency managers.
• [https://earthquake.usgs.gov/ens/ Earthquake Notification Service (ENS)]: customized notifications via e-mail and text messages.
• ShakeMap: a map of the anticipated severity and extent of ground shaking, based on the measured strength of ground shaking and known characteristics of the affected locality.
• [https://www.usgs.gov/publications/earthquakes-shakecast ShakeCast]: automated delivery of ShakeMaps customized for critical infrastructure, providing an estimate of shaking experienced.
• [https://earthquake.usgs.gov/data/pager/ Prompt Assessment of Global Earthquakes for Response (PAGER)]: combines ShakeMap results with an inventory of buildings and construction types to provide an immediate estimate of
• [https://earthquake.usgs.gov/data/dyfi/ Did-You-Feel-It? (DYFI)]: crowd-sourced reports of shaking that augment and interpolate instrumental data.
• [https://earthquake.usgs.gov/data/ground-failure/ Ground Failure]: estimations of the impacts of landslides and liquefaction caused by earthquake shaking.
• The ANSS [https://earthquake.usgs.gov/earthquakes/map Comprehensive Catalog (ComCat)] is a repository of data from the participating seismic networks. For significant earthquakes the NEIC prepares a summary of the tectonic setting, nearby fault systems, and historical seismicity.

These can be accessed at the USGS Earthquake page: https://earthquake.usgs.gov/earthquakes/.

As of 2023 the following networks were participating in the ANSS:{{Harvnb|USGS Circular 1429|2017|p=6}}.

• [https://earthquake.alaska.edu/ Alaska Earthquake Center] of the Geophysical Institute, University of Alaska Fairbanks.
• [https://www.cisn.org/ California Integrated Seismic Network (CISN)], the principal units of which are networks and data centers operated by the California Institute of Technology (Caltech), the University of California (UC) Berkeley, and the USGS Earthquake Science Center at Menlo Park, which are all participants in ANSS, as well as the California Geological Survey.
• [https://www.memphis.edu/ceri/public/recent%20maps.php Center for Earthquake Research and Information], University of Memphis.
• [https://www.mbmg.mtech.edu/MontanaGeology/geohazards/main.asp#gsc.tab=0 Montana Bureau of Mines and Geology].
• [http://www.seismo.unr.edu/ Nevada Seismological Laboratory], University of Nevada, Reno.
• Oklahoma Geological Survey, University of Oklahoma.
• Pacific Northwest Seismic Network, operated by the University of Washington and University of Oregon.
• [https://redsismica.uprm.edu/index.php Puerto Rico Seismic Network], University of Puerto Rico, Mayaguez.
• [https://www.seis.sc.edu/projects/SCSN/ South Carolina Seismic Network, University of South Carolina].
• [https://www.beg.utexas.edu/texnet-cisr/texnet Texas Seismological Network, University of Texas].
• [https://quake.utah.edu/earthquake-center/quake-map University of Utah Seismograph Stations].
• USGS Hawaiian Volcano Observatory.
• USGS National Earthquake Information Center.

Additional stations are operated by the USGS Albuquerque Seismological Laboratory (ASL).

The regional networks are deemed authoritative for the location and magnitude of earthquakes in their region. The NEIC receives additional data from about 3,000 stations around the world, and provides backup if a regional network is unable to communicate.

• International Seismological Centre
• Incorporated Research Institutions for Seismology

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Category:Earthquakes

Category:Seismology

Category:Seismology measurement

Category:Seismic networks

Category:Seismological observatories, organisations and projects

Category:United States Geological Survey