Earthquake CAP Alerts

What is a CAP Alert?

Common Alerting Protocol is a standard XML format for alerting and notification. Learn more about CAP Alerts.

Getting CAP Alerts

FEMA IPAWS Open Platform for Emergency Networks

To integrate CAP Alerts into your software, please contact FEMA IPAWS Open Platform for Emergency Networks, which receives and distributes CAP Alerts from USGS and many other agencies.

ATOM Feeds

We also include links to Earthquake CAP alerts in the ATOM Feeds. The link rel attribute is "related" and the link type attribute is "application/cap+xml":

<entry>
<id>urn:earthquake-usgs-gov:ak:10329133</id>
<title>M 2.9, Southern Alaska</title>
<updated>2011-10-05T21:50:12Z</updated>
<link rel="alternate" type="text/html" href="http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/ak10329133.php"/>
<link rel="related" type="application/cap+xml" href="http://earthquake.usgs.gov/earthquakes/catalogs/cap/ak10329133"/>
<summary type="html">
<![CDATA[
<img src="http://earthquake.usgs.gov/images/globes/60_-155.jpg" alt="59.328°N 153.646°W" align="left" hspace="20" /><p>Wednesday, October 5, 2011 21:50:12 UTC<br>Wednesday, October 5, 2011 01:50:12 PM at epicenter</p><p><strong>Depth</strong>: 94.80 km (58.91 mi)</p>
]]>
</summary>
<georss:point>59.3275 -153.6455</georss:point>
<georss:elev>-94800</georss:elev>
<category label="Age" term="Past hour"/>
</entry>

Signatures

We digitally sign each CAP alert so users can verify that USGS sent the alert, and the alert has not been modified since it was sent. Learn more about XML Digital Signatures.

X.509 Certificate

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-----END CERTIFICATE-----