Recent Earthquakes

In addition to displaying earthquakes by magnitude, this service also provide earthquake impact details. Impact is measured by population as well as models for economic and fatality loss. For more details, see: PAGER Alerts. Consumption Best Practices:As a service that is subject to very high usage, ensure peak performance and accessibility of your maps and apps by avoiding the use of non-cache-able relative Date/Time field filters. To accommodate filtering events by Date/Time, we suggest using the included "Age" fields that maintain the number of days or hours since a record was created or last modified, compared to the last service update. These queries fully support the ability to cache a response, allowing common query results to be efficiently provided to users in a high demand service environment.When ingesting this service in your applications, avoid using POST requests whenever possible. These requests can compromise performance and scalability during periods of high usage because they too are not cache-able. Update Frequency: 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 4.5 are retained for 7 daysEvents with a Significance value, "sig" field, of 600 or higher are retained for 90 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 Alternate SymbologiesVisit the Classic USGS Feature Layer item for a Rainbow view of Shakemap features. RevisionsSep 16, 2025: Exposed ‘UniqueId’ field in Shake Intensity Polygon layer.Sep 14, 2025: Upgrade to Layer data update workflow, to improve reliability and scalability.Aug 14, 2024: Added a default Minimum scale suppression of 1:6,000,000 on Shake Intensity layer. Jul 11, 2024: Updated event popup, setting "Tsunami Warning" text to "Alert Possible" when flag is present. Also included hyperlink to tsunami warning center. Feb 13, 2024: Updated feed logic to remove Superseded events 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. If you would like to be alerted to potential issues or simply see when this Service will update next, please visit our Live Feed Status Page!

Data e Risorse

Campo	Valore
dcat_issued	2019-12-14T00:58:08.000Z
dcat_modified	2025-09-17T03:34:56.000Z
dcat_publisher_name	Esri
guid	https://www.arcgis.com/home/item.html?id=9e2f2b544c954fda9cd13b7f3e6eebce
Tag	Earthquake Esri Live Feed Live Feeds PAGER Shakemap USGS earth observations hazards
isopen	False
metadata_created	2025-09-19T19:02:34.534934
metadata_modified	2025-09-19T19:02:34.534942
notes	<div>In addition to displaying earthquakes by magnitude, this service also provide earthquake impact details. Impact is measured by population as well as models for economic and fatality loss. For more details, see: <a target='_blank' href='https://earthquake.usgs.gov/earthquakes/pager' rel='nofollow ugc noopener noreferrer'><strong>PAGER Alerts</strong></a>. <br /> </div><div><p><strong>Consumption Best Practices:</strong></p><ul><li>As a service that is subject to very high usage, ensure peak performance and accessibility of your maps and apps by avoiding the use of non-cache-able relative Date/Time field filters. To accommodate filtering events by Date/Time, we suggest using the included "Age" fields that maintain the number of days or hours since a record was created or last modified, compared to the last service update. These queries fully support the ability to cache a response, allowing common query results to be efficiently provided to users in a high demand service environment.</li><li>When ingesting this service in your applications, avoid using <a target='_blank' href='https://en.wikipedia.org/wiki/POST_(HTTP)' rel='nofollow ugc noopener noreferrer'><strong>POST</strong></a> requests whenever possible. These requests can compromise performance and scalability during periods of high usage because they too are not cache-able.</li></ul><p> </p></div><p><strong>Update Frequency: </strong>Events are updated as frequently as every 5 minutes and are available up to 30 days with the following exceptions:</p><ul><li>Events with a Magnitude LESS than 4.5 are retained for 7 days</li><li>Events with a Significance value, "sig" field, of 600 or higher are retained for 90 days</li></ul><p> </p><p>In addition to event points, ShakeMaps are also provided. These have been dissolved by Shake Intensity to reduce the Layer Complexity.<br /><br />The specific layers provided in this service have been Time Enabled and include:</p><ul><li><strong>Events by Magnitude:</strong> The event’s seismic magnitude value.<ul><li><strong>Contains PAGER Alert Level:</strong> USGS PAGER (Prompt Assessment of Global Earthquakes for Response) system provides an automated impact level assignment that estimates fatality and economic loss.</li><li><strong>Contains Significance Level:</strong> An event’s significance is determined by factors like magnitude, max MMI, ‘felt’ reports, and estimated impact.</li></ul></li><li><strong>Shake Intensity:</strong> The Instrumental Intensity or Modified Mercalli Intensity (MMI) for available events.</li></ul><div> </div><div>For field terms and technical details, see: <a target='_blank' href='https://earthquake.usgs.gov/data/comcat/data-eventterms.php' rel='nofollow ugc noopener noreferrer'><strong>ComCat Documentation</strong></a></div><div> </div><div><span style='font-size:x-large;'>Alternate Symbologies</span></div><div><ul><li>Visit the <a target='_blank' href='https://www.arcgis.com/home/item.html?id=5b564bbefa2c482982de7f092dc4f9c9' rel='nofollow ugc noopener noreferrer'><strong>Classic USGS Feature Layer</strong></a> item for a Rainbow view of Shakemap features.</li></ul><p> </p><div><span style='font-size:x-large;'>Revisions</span></div><div><ul><li><strong>Sep 16, 2025</strong>: Exposed ‘UniqueId’ field in Shake Intensity Polygon layer.</li><li><strong>Sep 14, 2025</strong>: Upgrade to Layer data update workflow, to improve reliability and scalability.</li><li><strong>Aug 14, 2024</strong>: Added a default Minimum scale suppression of 1:6,000,000 on Shake Intensity layer. </li><li><strong>Jul 11, 2024</strong>: Updated event popup, setting "Tsunami Warning" text to "Alert Possible" when flag is present. Also included hyperlink to tsunami warning center. </li><li><strong>Feb 13, 2024</strong>: Updated feed logic to remove Superseded events</li></ul><p> </p></div></div><div><p><span style='color:rgb(128,128,128);'><i>This map is provided for informational purposes and is not monitored 24/7 for accuracy and currency. Always refer to </i></span><a target='_blank' href='https://www.usgs.gov/natural-hazards/earthquake-hazards/earthquakes' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(128,128,128);'><i><strong>USGS</strong></i></span></a><span style='color:rgb(128,128,128);'><i> source for official guidance.</i></span></p><div> </div><p>If you would like to be alerted to potential issues or simply see when this Service will update next, please visit our <a target='_blank' href='https://livingatlas.arcgis.com/livefeeds-status/' rel='nofollow ugc noopener noreferrer'><strong>Live Feed Status</strong></a> Page!</p></div>
num_resources	2
num_tags	9
title	Recent Earthquakes
url	https://prep-response-portal.napsgfoundation.org/maps/esri2::recent-earthquakes