USGS Global Earthquakes

This map is part of Indicators of the Planet.  Please see https://livingatlas.arcgis.com/indicators

This displays recent earthquake information from the United States Geological Survey (USGS) Prompt Assessment of Global Earthquakes for Response (PAGER) program.

In addition to displaying earthquakes by magnitude, this web map also provides earthquake impact details. Impact is measured by population as well as models for economic and fatality loss. For more details, see: PAGER Alerts.

Events are updated as frequently as every 5 minutes and are available up to 30 days with the following exceptions:

• Events with a Magnitude LESS than 3.0 are retained for 3 days
• Events with a Magnitude LESS than 4.5 are retained for 7 days

In addition to event points, ShakeMaps are also provided. These have been dissolved by Shake Intensity to reduce the Layer Complexity.

The specific layers provided in this service have been Time Enabled and include:

• Events by Magnitude: The event’s seismic magnitude value.
• Contains PAGER Alert Level: USGS PAGER (Prompt Assessment of Global Earthquakes for Response) system provides an automated impact level assignment that estimates fatality and economic loss.
• Contains Significance Level: An event’s significance is determined by factors like magnitude, max MMI, ‘felt’ reports, and estimated impact.
• Shake Intensity: The Instrumental Intensity or Modified Mercalli Intensity (MMI) for available events.

For field terms and technical details, see: ComCat Documentation
This map is provided for informational purposes and is not monitored 24/7 for accuracy and currency. Always refer to USGS source for official guidance.