At 1:47:47 (UTC) on September 8, 2021, a magnitude 7.0 earthquake occurred near Acapulco, Mexico. The earthquake is associated with the plate boundary, where the oceanic Cocos plate collides with and subducts beneath Mexico.
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Announcements, news, and science highlights featuring the GAGE Facility and staff, as well as the broader geodetic community.
Thanks to the generous support of the National Science Foundation (NSF), the Geo-Launchpad program will continue to serve community college students through 2024!
UNAVCO recently wrapped up a two-year project upgrading and installing geodetic stations to better serve the ShakeAlert Earthquake Early Warning System, but the work contributing to ShakeAlert is far from over. As a result of a new interagency agreement with the National Science Foundation and the United States Geological Survey, UNAVCO will build and operate the new geodetic data architecture of ShakeAlert.
The ShakeAlert earthquake early warning system is much more than the alert message on your phone. Detecting earthquakes, characterizing them, and determining the appropriate warning area takes a tremendous amount of infrastructure. With the completion of a recent Cooperative Agreement with the USGS, UNAVCO has improved West Coast geodetic infrastructure so it can be fully integrated into ShakeAlert.
At 1:47:47 (UTC) on September 8, 2021, a magnitude 7.0 earthquake occurred near Acapulco, Mexico. The earthquake is associated with the plate boundary, where the oceanic Cocos plate collides with and subducts beneath Mexico. Slip occurred with a reverse motion and centered at a depth of 20 kilometers, producing a local tsunami warning but no warning for other regions in the Pacific.
At 12:29:09 (UTC) on August 14, a shallow magnitude 7.2 earthquake occurred 12 kilometers northeast of Saint-Louis du Sud in Haiti, with oblique reverse motion on the fault.
At 6:15:47 (UTC) on July 28, a magnitude 8.2 earthquake occurred southeast of Perryville and Chignik, off the coast of the Alaska Peninsula. The event occurred within the footprint of the Network of the Americas (NOTA), a network of continuous GPS/GNSS stations and borehole instruments operated by UNAVCO that monitors plate motion and transient deformation.