2019 Ridgecrest Earthquake Sequence: July 4, 2019–July 16, 2019
3,557 earthquakes recorded since July 4, 2019 above Magnitude 2
M6.4 12km W of Searles Valley, CA
2019-07-04 17:33:49 (UTC)
51,000+ responses via Did You Feel It?
M7.1 18km W of Searles Valley, CA
2019-07-06 03:19:53 (UTC)
42,000+ responses via Did You Feel It?
631 M3+ earthquakes so far strong enough to be felt
5 M5+ earthquakes so far large enough to do damage
Be ready for more earthquakes.
CHANCE OF AN EARTHQUAKE*
in the next week until July 22, 2019.
M3+ is >99%
23–52 such earthquakes may occur re-invigorated by larger aftershock.
M5+ is 30%
0-3 such earthquakes may occur.
M6+ is 4%
Such an earthquake is possible, but with low probability.
M7+ is <1%
1 in 300 chance. Such an earthquake is possible, but with low probability.
* This forecast was issued: 2019-07-15 16:31:15 (UTC)
* This forecast will be updated on or before 2019-07-22 16:31:15 (UTC)
SCIENCE IN ACTION
Background: Highway 178 SW of Trona. Taken earlier in the morning July 6, 2019 after the M7.1 earthquake which struck eastern California, southwest of Searles Valley, near Ridgecrest, CA.
Top right: Scientists from USGS & CGS and Navy escort, and a UCLA engineer from the GEER team, inspect ~12 +/- 3 foot high fault scarp with from 3 to 5 feet of right-lateral motion near the expected maximum slip locality along the primary tectonic rupture associated with the M 7.1 event.
Bottom right: USGS Scientist is measuring a fault offset on California State Route 178 following M6.4 on July 4, 2019 near Ridgecrest, CA.
Bottom left: USGS Seismologists Alan Yong and Elizabeth Cohcran conduct field work near the main rupture between Trona and Ridgecrest California.
U.S. Department of the Interior
U.S. Geological Survey