As part of its monitoring activities, the ANSS includes a national Backbone network, the National Earthquake Information Center (NEIC) , the National Strong Motion Project , and 15 regional seismic networks operated by USGS and its partners.
When earthquakes strike, ANSS delivers real-time information , providing situational awareness for emergency-response personnel. In regions with sufficient seismic stations, that information includes –within minutes–a ShakeMap showing the distribution of potentially damaging ground shaking, information used to target post-earthquake response efforts. When fully implemented, ANSS will provide such dense station coverage for all at-risk urban areas. Information from ANSS is a key input to the USGS National Seismic Hazard Maps, which help communities in earthquake-prone regions develop safer building practices.
Basic station information and operation status. For technical station information, see the ANSS Station Information System (SIS).
Real-time seismograms from ANSS stations
The ANSS data has been used to develop many real-time information products.
- Intermountain West:
- Central & Eastern US:
- Pacific Northwest
- Puerto Rico & US Territories
ANSS Policy & Procedures Documents
- Advanced National Seismic System—Current status, development opportunities, and priorities for 2017–27 (Circular 1429)
- Advanced National Seismic System (USGS Information Sheet, March, 2000)
- An Assessment of Seismic Monitoring in the United States: Requirements for an Advanced National Seismic System (Circular 1188)
- ANSS Management Structure Diagram
- Technical Implementation Plan
- Methods of Installing United States National Seismographic Network (USNSN) Stations–A Construction Manual
- Guideline for ANSS Monitoring of Engineered Civil Systems
- Revised Appendices D, E and F: Submission Form for Candidate Buildings, Geostructures and Infrastructure
- Instrumentation Guidelines:
- ANSS Performance Standards
- ANSS Participation Policy
- ANSS Implementation Standards & Procedures
- ANSS Equipment Policy
- ANSS Data & Products Policy
- Geodetic Networks Standards & Procedures
- EHP Portable Deployments Guidelines
- California Coordinates for West Coast Earthquake Early Warning System (CSV)
- Cascadia Coordinates for West Coast Earthquake Early Warning System (CSV)
Advanced National Seismic System—Current status, development opportunities, and priorities for 2017–2027
Origins of a national seismic system in the United States
ShakeAlert—An earthquake early warning system for the United States west coast
Technical implementation plan for the ShakeAlert production system: an Earthquake Early Warning system for the West Coast of the United States
Earthquake information products and tools from the Advanced National Seismic System (ANSS)
Did you feel it? : citizens contribute to earthquake science
PAGER - Rapid Assessment and Notification of an Earthquake's Impact
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Advanced National Seismic System—Current status, development opportunities, and priorities for 2017–2027SummaryEarthquakes pose a threat to the safety of over 143 million people living in the United States. Earthquake impacts can be significantly reduced if communities understand their risk and take proactive steps to mitigate that risk. The Advanced National Seismic System (ANSS) is a cooperative effort to collect and analyze seismic and geodetic data on earthquakes, issue timely and reliable notif
Origins of a national seismic system in the United StatesThis historical review traces the origins of the current national seismic system in the United States, a cooperative effort that unifies national, regional, and local‐scale seismic monitoring within the structure of the Advanced National Seismic System (ANSS). The review covers (1) the history and technological evolution of U.S. seismic networks leading up to the 1990s, (2) factors that made the 1
ShakeAlert—An earthquake early warning system for the United States west coastEarthquake early warning systems use earthquake science and the technology of monitoring systems to alert devices and people when shaking waves generated by an earthquake are expected to arrive at their location. The seconds to minutes of advance warning can allow people and systems to take actions to protect life and property from destructive shaking. The U.S. Geological Survey (USGS), in collabo
Technical implementation plan for the ShakeAlert production system: an Earthquake Early Warning system for the West Coast of the United StatesEarthquake Early Warning (EEW) systems can provide as much as tens of seconds of warning to people and automated systems before strong shaking arrives. The United States Geological Survey (USGS) and its partners are developing such an EEW system, called ShakeAlert, for the West Coast of the United States. This document describes the technical implementation of that system, which leverages existing
USGS ShakeCastAutomating, Simplifying, and Improving the Use of ShakeMap for Post-Earthquake Decisionmaking and Response. ShakeCast is a freely available, post-earthquake situational awareness application that automatically retrieves earthquake shaking data from ShakeMap, compares intensity measures against users facilities, and generates potential damage assessment notifications, facility damage maps, and o
Earthquake information products and tools from the Advanced National Seismic System (ANSS)This Fact Sheet provides a brief description of postearthquake tools and products provided by the Advanced National Seismic System (ANSS) through the U.S. Geological Survey Earthquake Hazards Program. The focus is on products specifically aimed at providing situational awareness in the period immediately following significant earthquake events.
Did you feel it? : citizens contribute to earthquake scienceSince the early 1990s, the magnitude and location of an earthquake have been available within minutes on the Internet. Now, as a result of work by the U.S. Geological Survey and with the cooperation of various regional seismic networks, people who experience an earthquake can go online and share information about its effects to help create a map of shaking intensities and damage. Such “Community I
PAGER - Rapid Assessment and Notification of an Earthquake's ImpactPAGER (Prompt Assessment of Global Earthquakes for Response) is an automated alarm system being developed to rapidly and accurately assess the severity of damage caused by an earthquake and to provide emergency relief organizations, government agencies, and the media with an estimate of the societal impact from the potential catastrophe.