4,000 ~1,200 (≥2.5 Mw ) (including after main foreshock)
Casualties
1 death, 25 injured (20 on July 4, 5 on July 5)
The 2019 Ridgecrest earthquakes (more commonly referred to in scientific literature as the 2019 Ridgecrest earthquake sequence) of July 4 and 5 occurred north and northeast of the town of Ridgecrest, California located in Kern County and west of Searles Valley (approximately 200 km [122 mi] north-northeast of Los Angeles). They included three initial main shocks of Mw magnitudes 6.4, 5.4, and 7.1,[8] and many perceptible aftershocks, mainly within the area of the Naval Air Weapons Station China Lake. Eleven months later, a Mw 5.5 aftershock took place (the largest aftershock of the sequence) to the east of Ridgecrest. The first main shock (now deemed to be a foreshock) occurred on Thursday, July 4 at 10:33 a.m. PDT, approximately 18 km (11.2 mi) ENE of Ridgecrest, and 13 km (8.1 mi) WSW of Trona,[9] on a previously unnoticed NE-SW trending fault where it intersects the NW-SE trending Little Lake Fault Zone.[10] This quake was preceded by several smaller earthquakes, and was followed by more than 1,400 detected aftershocks. The M 5.4 and M 7.1 quakes struck on Friday, July 5 at 4:08 a.m. and 8:19 p.m. PDT approximately 10 km (6 miles) to the northwest. The latter, now considered the mainshock, was the most powerful earthquake to occur in the state in 20 years (after the 1999 Hector Mine earthquake).[11] Subsequent aftershocks extended approximately 50 km (~30 miles) along the Little Lake Fault Zone.
Relatively minor damage resulted from the initial foreshock, though some building fires were reported in Ridgecrest near the epicenter. The main quake on July 5 cut power to at least 3,000 residents in Ridgecrest.[12][11] Effects were felt across much of Southern California, parts of Arizona and Nevada,[13] as far north as the San Francisco Bay Area and Sacramento, and as far south as Baja California, Mexico. An estimated 20 million people experienced the foreshock, and approximately 30 million people experienced the mainshock.[14]
^ANSS: Ridgecrest 2019a .
^ANSS: Ridgecrest 2019b .
^ANSS: Ridgecrest 2019c .
^ANSS: Ridgecrest 2019d .
^Cite error: The named reference KTLA_0710 was invoked but never defined (see the help page).
^Cite error: The named reference KTLA_0814 was invoked but never defined (see the help page).
^Cite error: The named reference StEER was invoked but never defined (see the help page).
^ ab"7.1-Magnitude Earthquake Hits Southern California; Experts Say More Strong Aftershocks Possible". The Weather Company. July 6, 2019. Retrieved July 6, 2019.
^Cite error: The named reference Stronger quake LATimes was invoked but never defined (see the help page).
^"Northern Ireland pair shaken by quake on 30th floor of Las Vegas hotel". Belfast Telegraph. ISSN 0307-1235. Retrieved May 15, 2020.
^Byrd, Doborah (July 6, 2019). "California shakes from 2nd big quake in 2 days". EarthSky. Retrieved July 7, 2019.
and 26 Related for: 2019 Ridgecrest earthquakes information
The 2019Ridgecrestearthquakes (more commonly referred to in scientific literature as the 2019Ridgecrestearthquake sequence) of July 4 and 5 occurred...
1954 1954 1954 1954 2019 2020 This is a list of earthquakes that have occurred in or near the US state of Nevada. Only earthquakes with a magnitude of...
tsunamis Lists of earthquakes List of earthquakes in Alaska List of earthquakes in California List of earthquakes in Kansas List of earthquakes in Nevada List...
are earthquakes with at least 7.0 magnitude. Earth sciences portal Lists of earthquakes Lists of 21st-century earthquakes Lists of earthquakes by year...
to Earthquakes. USGS-ANSS Latest earthquakes around the world. Southern California Earthquake Center (SCEC) IRIS Seismic Monitor, Recent earthquakes around...
ShakeAlert generated warnings for both the July 5 MW6.4 and July 5 MW7.1 Ridgecrestearthquakes. Although not yet publicly available, beta users of the QuakeAlert...
activity. However, most earthquakes lack obvious foreshock patterns and this method has not proven useful, as most small earthquakes are not foreshocks, leading...
earthquake 2010 Baja California earthquake2019Ridgecrestearthquakes "Landers Earthquake". Southern California Earthquake Data Center. Archived from the...
portal 1992 Landers earthquake2019Ridgecrestearthquakes List of earthquakes in 1999 List of earthquakes in California List of earthquakes in the United States...
Narrows earthquake 1992 Landers earthquake 1999 Hector Mine earthquake2019Ridgecrestearthquakes List of earthquakes in 1994 List of earthquakes in California...
Bernardino, and Inyo – the installation's closest neighbors are the city of Ridgecrest and the communities of Inyokern, Trona, and Darwin. China Lake is the...
sequence of earthquakes rupturing orthogonal strike-slip fault sets has been compared to the 2019Ridgecrestearthquake sequence. The earthquake sequence...
of major earthquakes by the dollar value of property (public and private) losses directly attributable to the earthquake. Only earthquakes that have...
observed sequence of earthquakes rupturing orthogonal strike-slip fault sets has been compared to the 2019Ridgecrestearthquake sequence. The greatest...
Large-scale earthquakes, such as the 2012 Guerrero–Oaxaca earthquake, the 2018 Gulf of Alaska earthquake, and the 2019Ridgecrestearthquakes have caused...
Hector Mine earthquake, the 2019 Ridgecrestearthquakes sequence, as well as the massive 1872 Lone Pine earthquake in the Owens Valley. "Walker Lane"...
earthquakes within stated limits, and particularly "the determination of parameters for the next strong earthquake to occur in a region". Earthquake prediction...
2021. California had its largest earthquake in years — then an even bigger one hit. Washington Post (Report). July 6, 2019. Retrieved July 8, 2021. Lixion...
2019 in the journal Science indicated that a part of the Garlock fault slipped after being triggered by the series of earthquakes in the Ridgecrest area...
earthquakes in the late 19th and early 20th centuries, real estate developers, press, and boosters minimized and downplayed the risk of earthquakes out...
protests, is observed. June 3 – A 5.5 Mw earthquake said to be an aftershock of the 2019Ridgecrestearthquakes hits near Searles Valley, California. No...
2019Ridgecrestearthquakes Cerro Prieto Geothermal Power Station Lists of 21st-century earthquakes List of earthquakes in 2010 List of earthquakes in...
This is a list of earthquakes in 2021. Only earthquakes of magnitude 6 or above are included, unless they result in damage and/or casualties, or are notable...
(January 7, 2020). "Cascading and pulse-like ruptures during the 2019Ridgecrestearthquakes in the Eastern California Shear Zone". Nature Communications...
the M7.4 1872 Owens Valley earthquake on the Owens Valley Fault and the M7.1 mainshock of the 2019Ridgecrestearthquakes, which was a result of movement...
Global Information
