Keep up to date on geophysical events around the world and the latest news within the geophysics community and beyond.

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Announcements, news, and science highlights featuring the GAGE Facility and staff, as well as the broader geodetic community.

30 July 2021

Intern Spotlight: Levi Exner (USIP)

Levi Exner is interning this summer at UNAVCO as a software engineer. Levi entered Colorado State University as a statistics major and was required to take an introductory computer science course. After enjoying the class, Levi decided to switch his major to computer science. He was eager to obtain more computer science experience, especially in a professional setting, and wanted the chance to practice data visualization. Levi found the introductory geology course he took interesting and with his grandfather in the USGS, Levi understood the importance of supporting geological research.

29 July 2021

Minimizing Error in GNSS Calculations

The Global Navigation Satellite System (GNSS) has become an instrumental part of our daily lives. It is used for things like navigation, land surveying, and mapping, just to name a few. While the geodetic applications of GNSS are incredibly powerful, they do encounter limitations because of unknowns in their calculations. One important factor that contributes … Continued

28 July 2021

Intern Spotlight: Rebecca (Becca) Bussard (USIP)

Rebecca (Becca) Bussard is entering her third year as a PhD candidate at the University of Oregon. She uses satellite geodesy, specifically Interferometric Synthetic Aperture Radar (InSAR), to measure the surface deformation of Earth. Becca is able to utilize the deformation signals to understand surface and subsurface processes occurring at volcanoes and how these processes impact the signal InSAR retrieves. She also uses GPS data in her work to compare with the InSAR data she processes, as well as multispectral optical data.

Event Responses

29 July 2021

July 28, 2021 M 8.2 Alaska Earthquake

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.

20 July 2021

July 8, 2021 M 6.0 Antelope Valley, CA earthquake

At 22:49:48 (UTC) on July 8, a magnitude 6.0 earthquake occurred in Antelope Valley, CA along the eastern side of the Sierra Nevada Mountains, generating felt shaking across a wide area.

21 June 2021

June 5, 2021 M 5.3 Calipatria, CA Earthquake

At 17:55:58 (UTC) on June 5, a magnitude 5.3 earthquake 11 kilometers west of Calipatria, California started a swarm of events in the area. The swarm is associated with the Westmorland Fault and the step-over fault system between the San Jacinto and San Andreas faults.