Southern California Earthquakes July 2019

Start Date

July 9, 2019

Overview

On July 4th, 2019, a magnitude 6.4 earthquake struck to the northeast of the California town of Ridgecrest, which was a foreshock for a larger magnitude 7.1 earthquake nearby on July 5th. The area affected includes a previously unmapped fault whose slippage generated surface ruptures and damaged homes and businesses. 

The Disasters Program has activated to Tier 2 in support of the Southern California Earthquakes on July 4 & 5. The NASA Disasters Program is providing support to the California Earthquake Clearinghouse, which is coordinating efforts with the California Air National Guard, the United States Geological Survey and FEMA. 

NASA will use orbiting satellites to provide the data that program analysts will translate into visualizations of land deformation and potential landslides, among other impacts. The program also plans to mobilize NASA Airborne Science assets that will be flown from Johnson Space Center in Houston, Texas.

Disaster Types

Latest Updates

July 17, 2019
The map shows estimated damage from the 2019 Southern California Earthquakes, with the color variation from yellow to red indicating increasingly more significant surface change, or damage.
The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory in Pasadena, California, created this map depicting areas that are likely damaged as a result of the recent major earthquakes in Southern California. The color variation from yellow to red indicates increasingly more significant surface change, or damage. The map covers an area of 155 by 186 miles (250 by 300 kilometers), shown by the large red polygon. Each pixel measures about 33 yards (30 meters) across.
July 9, 2019
This imagery from the NASA-JPL ARIA team shows a decorrelation map on the left that shows surface rupture and disturbance, and an updated surface deformation map on the right produced at a higher resuolution of 30m. Credit: NASA-JPL, JAXA,
UPDATE 7/11/19: This new imagery from the NASA-JPL ARIA team shows a decorrelation map on the left that shows surface rupture and disturbance, and an updated surface deformation map on the right produced at a higher resuolution of 30m. Credit: NASA-JPL, JAXA, The ARIA team at NASA-JPL has produced this updated imagery of the recent California earthquakes. Shown on the left is a decorrelation map that shows surface rupture and disturbance in red. The background noise level is lower...