A 6.4 struck Southern California in the Searles Valley located in the Mojave Desert, in northwestern San Bernardino County, California at 10:33 AM at dept of 8.7 kilometers. It lasted for over 30 seconds and was felt in Ventura County. From the USG site there appears to have been a series of quakes before the major shaker. Damage as been reported near the epicenter, no injuries have come into our office as of the time of publishing.
From well known seismologist Dr. Jones’ twitter:
A M6.6 near Ridgecrest. The M4.2 a half hour before was a foreshock. This area had lots of M5+s in the 198os. More soon
— Dr. Lucy Jones (@DrLucyJones) July 4, 2019