PAGER: Prompt Assessment of Global Earthquakes for Response

The PAGER system provides estimates of the number of people and the names of cities exposed to severe shaking following significant earthquakes worldwide. Links to PAGER results for earthquakes occurring within the last seven days are contained in the map and table below. The earthquakes are color coded by the maximum Modified Mercalli Intensity (MMI) estimated to have been experienced by at least 1000 people (an MMI value of corresponds to not felt). Information on the extent of shaking will be uncertain in the minutes and hours following an earthquake and typically improves as additional sensor data and reported intensities are aquired and incorporated into models of the earthquake's source. Users should always seek the most current PAGER version for any earthquake. PAGER does not directly consider secondary effects such as landslides and tsunami. For tsunami warnings, see the National Weather Service Tsunami Centers.

Background Information

For earthquakes larger than magnitude 5.5, PAGER results are generally available on the Internet within 30 minutes of the earthquake's occurrence. However, information on the extent of shaking will be uncertain in the minutes and hours following an earthquake and typically improves as additional sensor data and reported intensities are acquired and incorporated into models of the earthquake's source. Users of PAGER exposure estimates should account for uncertainty and always seek the most current PAGER release for any earthquake.