earthquake map

What is the Difference Between an Earthquake Swarm and Aftershocks

September 23, 2021November 8, 2019 by Caitlin Dempsey

Learn about the difference between an earthquake swarm and an aftershock.

NASA's Advanced Rapid Imaging and Analysis (ARIA) team created this co-seismic Interferometric Synthetic Aperture Radar (InSAR) map, which shows surface displacement caused by the recent major earthquakes in Southern California, including the magnitude 6.4 and the magnitude 7.1 events on July 4 and July 5, 2019, respectively. Credits: NASA/JPL-Caltech

Mapping Ground Movement From the 2019 California Earthquake with Satellite Data

November 5, 2023July 11, 2019 by Caitlin Dempsey

Researchers with NASA’s Jet Propulsion Laboratory have used satellite data to map out surface displacement from the 2019 California earthquakes.