Graphically alerts users, in near real-time, of seismicity as well as vital earthquake-hazards information following a significant earthquake.
ComCat Earthquake Catalog
Online catalog search and downloadable information and technical data.
Did You Feel It?
Human reports of shaking. Report your earthquake experience and see the map of shaking reports.
Earthquake Feeds and Web Services
Real-time notifications and real-time feeds of earthquakes.
Earthquake Notification Service (ENS)
Automated notifications of earthquakes through e-mail, pager, or cell phone. Rapid information and updates to
first responders, and resources for media and local government.
National Hazard Maps
National hazard mpas identify the areas of the country that are mostly likely to experience strong shaking in the future.
Zip code or latitude-longitude lookup is available.
Automatic maps and event information are available within minutes oniline at the Earthquake Hazards
Program website which displays earthquake locations nationwide.
Monitoring Data and Products
Earthquake data and products links.
Movies of Structures Shaking
Quicktime movies created from the recordings of fully-instrumented structures during earthquakes.
Information on the impact of an earthquake using data about the shaking, the affected population, and the affected infrastructure.
Real-time seismogram and heliplot displays from 60 stations are available online 24 hours a day.
An application for automating ShakeMap delivery to critical users and for facilitating notification of shaking levels at user-selected facilities.
Instrumentally measured shaking intensity mapped in a certain region. Fast information on strong skaing
in urban areas helps get emergency response to the right places.
A spectrogram is a means for viewing the frequency content of a seismogram as it changes with time.
Twitter Earthquake Dispatch (TED)
@USGSted (USGS Tweet Earthquake Dispatch) and @USGSBigQuakes (USGS Big Quakes) distribute alerts for earthquakes worldwide with magnitudes of 5.5 and above.