An Overview and Update on the Advanced National Seismic System (ANSS)
Description:
The Advanced National Seismic System (ANSS) is a cooperative effort of Federal, State, and academic partners to provide authoritative and actionable earthquake information in the United States and US territories. Partners of the ANSS collect and analyze seismic and geodetic data on earthquakes, issue timely and reliable notifications of earthquake occurrence and impact, and provide foundational data for earthquake research, hazard characterization, and risk assessment. The ANSS consists of national elements including the National Earthquake Information Center, regional seismic networks operated by the USGS and/or State and university partners, and real-time geodetic networks. ANSS delivers a broad suite of earthquake data and information products, including catalogs of earthquake origins, magnitudes, and source characteristics (moment tensors, focal mechanisms, and finite fault models ), earthquake waveforms and phase picks, strong motion records, impact products (Did You Feel It?, ShakeMaps, PAGER loss reports, ShakeCast, Ground Failure), operational aftershock forecasts, and origins for earthquake early warning.
Domestically in 2022, the ANSS reported on approximately 120,000 earthquakes, with event M4.5 and larger typically reported within 5 minutes of origin time. ANSS produced ShakeMaps for 969 earthquakes, moment tensor solutions for 260 earthquakes, PAGER loss report for 134 earthquake, and reviewed ShakeAlert origins for 52 earthquakes. This presentation serves to provide an overview of the current contributors and elements of the ANSS, and earthquake monitoring performance in the United States and territories. We will also highlight ongoing development opportunities and activities within ANSS focused on improving regional earthquake response capabilities and earthquake analysis capabilities in high-risk urban areas.
Session: Network Seismology: Recent Developments, Challenges and Lessons Learned
Type: Oral
Date: 4/20/2023
Presentation Time: 08:00 AM (local time)
Presenting Author: William Barnhart
Student Presenter: No
Invited Presentation:
Authors
William Barnhart Presenting Author Corresponding Author wbarnhart@usgs.gov U.S. Geological Survey |
Cecily Wolfe cwolfe@usgs.gov U.S. Geological Survey |
|
|
|
|
|
|
|
An Overview and Update on the Advanced National Seismic System (ANSS)
Category
Network Seismology: Recent Developments, Challenges and Lessons Learned