SCSNOcotillo Wells – SCSN

07/24/2024, M3.5 near Ocotillo Wells

Zackary Newman — Thu, 25 Jul 2024 17:44:30 +0000

Event

24 Jul 2024 20:49:59 PDT, (33.223, -116.048), depth 3.2km.
12km NE of Ocotillo Wells, California

Aftershocks

As of 25 Jul 2024, 10:30AM PDT, there have been 3 aftershocks recorded.
The largest was M1.4 (smallest M0.7).
More aftershocks may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock.
There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.

Possible Foreshocks

There were 2 events during the 3 days prior to the earthquake (within a 10 km radius).
The largest was M1.0 (2024/07/24).

Historical Seismicity

Since our records began in 1932 we’ve had 54 events of M4 or greater within 10km of today’s event.
The largest historic event was M6.6 on 1968/04/09.
The most recent historic event was M4.3 on 09 Feb 2007.

Faults

CFM fault associations: most likely Clark fault; south segment (59%). Alternates: Not associated with a CFM modeled fault (4%), Other CFM faults (37%).*
Nearby faults: San Jacinto fault zone, Borrego Mountain section (Coyote Creek fault) (10.4 km), San Jacinto fault zone, Anza section (Clark fault) (11.2 km) and San Jacinto fault zone, Coyote Creek section (Coyote Creek fault) (14.1 km).**

Additional Information

Links for: USGS earthquake page, ShakeMap, DYFI, waveforms.
Visit our special reports page for further information on local notable earthquakes.
Visit scedc.caltech.edu to access any data recorded by the SCSN.

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed.

*Earthquakes can occur both near or on major known faults, and in places where no clear fault zones are known. Using the statistical method of Evans et al. (in prep. 2019) the location and focal mechanism of this earthquake suggest the above association with modeled faults in the Community Fault Model (CFM) provided by the Southern California Earthquake Center (SCEC) and Harvard University. Note that the CFM fault association may be different from the nearby faults list. Differences may arise due to different fault databases, and because the CFM fault association uses the hypocenter with relation to subsurface 3-dimensional fault orientation models, while the nearby faults list utilizes mapped surface traces as they relate to the epicenter.

CFM Fault: SCEC CFM 5.0 Fault name and closest segment if available; The CFM is maintained by Harvard University, Dept of Earth & Planetary Sciences.

Probability: The probability in percent the earthquake is associated with this fault.

SCSN: Caltech/USGS Southern California Seismic Network

**U.S. Geological Survey and California Geological Survey, 2006, Quaternary fault and fold database for the United States, accessed 2015, from USGS web site: https://earthquake.usgs.gov/hazards/qfaults/

This information is subject to change as more up-to-date data become available.

05/20/2024, M4.1 near Ocotillo Wells

Zackary Newman — Mon, 20 May 2024 12:38:49 +0000

Event

20 May 2024 05:17:36 PDT, (33.030, -116.003), depth 12.0km.
17km SE of Ocotillo Wells, California

Aftershocks

As of 20 May 2024, 05:30AM PDT, there have been no aftershocks recorded.
Aftershocks may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock.
There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.

Historical Seismicity

Since our records began in 1932 we’ve had 60 events of M4 or greater within 10km of today’s event.
The largest historic event was M6.6 on 1987/11/24.
The most recent historic event was M4.5 on 10 May 2020.

Faults

CFM fault associations: most likely Coyote Creek fault (81%). Alternates: Not associated with a CFM modeled fault (5%), Other CFM faults (14%).*
Nearby faults: San Jacinto fault zone, Borrego Mountain section (Coyote Creek fault) (0.3 km), San Jacinto fault zone, Superstition Mountain section (fault) (4.6 km), San Jacinto fault zone, Superstition Hills section (11.6 km), San Jacinto fault zone, Superstition Hills section (Elmore Ranch fault) (14.3 km), San Jacinto fault zone, Superstition Hills section (Superstition Hills flt) (14.3 km) and San Jacinto fault zone, Superstition Hills section (Kane Spring fault) (14.9 km).**

Additional Information

Links for: USGS earthquake page, ShakeMap, DYFI, waveforms.
Visit our special reports page for further information on local notable earthquakes.
Visit scedc.caltech.edu to access any data recorded by the SCSN.

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed.

CFM Fault: SCEC CFM 5.0 Fault name and closest segment if available; The CFM is maintained by Harvard University, Dept of Earth & Planetary Sciences.

Probability: The probability in percent the earthquake is associated with this fault.

SCSN: Caltech/USGS Southern California Seismic Network

This information is subject to change as more up-to-date data become available.

08/18/2021, M4.0 near Ocotillo Wells

Jennifer Andrews — Wed, 18 Aug 2021 22:23:17 +0000

Event

18 Aug 2021 14:45:14 PDT, (33.073, -115.960), depth 7.1km.
18km ESE of Ocotillo Wells, California

Aftershocks

As of 18 Aug 2021, 04:10PM PDT, there have been 5 aftershocks recorded.
The largest was M3.8 (smallest M1.5).
More aftershocks may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock.
There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.

Possible Foreshocks

There were 13 events during the 3 days prior to the earthquake (within a 10 km radius).
The largest was M2.8 (2021/08/18).

Historical Seismicity

Since our records began in 1932 we’ve had 68 events of M4 or greater within 10km of today’s event.
The largest historic event was M6.6 on 1987/11/24.
The most recent historic event was M4.5 on 10 May 2020.

Faults

CFM fault associations: most likely Extra fault (60%). Alternates: Not associated with a CFM modeled fault (12%), Other CFM faults (28%).*
Nearby faults: San Jacinto fault zone, Borrego Mountain section (Coyote Creek fault) (5.3 km), San Jacinto fault zone, Superstition Mountain section (fault) (7.0 km), San Jacinto fault zone, Superstition Hills section (7.7 km), San Jacinto fault zone, Superstition Hills section (Kane Spring fault) (9.5 km), San Jacinto fault zone, Superstition Hills section (Elmore Ranch fault) (11.3 km), San Jacinto fault zone, Superstition Hills section (Superstition Hills flt) (11.3 km), San Jacinto fault zone, Superstition Hills section (East Elmore Ranch fault) (11.8 km), San Jacinto fault zone, Superstition Hills section (West Elmore Ranch fault) (13.1 km) and San Jacinto fault zone, Superstition Hills section (Lone Tree fault) (14.8 km).**

Additional Information

Links for: USGS earthquake page, ShakeMap, DYFI, waveforms.
Visit our special reports page for further information on local notable earthquakes.

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed.

CFM Fault: SCEC CFM 5.0 Fault name and closest segment if available; The CFM is maintained by Harvard University, Dept of Earth & Planetary Sciences.

Probability: The probability in percent the earthquake is associated with this fault.

SCSN: Caltech/USGS Southern California Seismic Network

This information is subject to change as more up-to-date data become available.

05/10/2020, M4.5 near Ocotillo Wells

Jennifer Andrews — Mon, 11 May 2020 01:27:56 +0000

Event

10 May 2020 15:07:40 PDT, (33.018, -116.020), depth 10.0km.
17km SE of Ocotillo Wells, California

Aftershocks

As of 10 May 2020, 06:23PM PDT, there have been 30 aftershocks recorded.
The largest was M3.0 (smallest M1.1).
More aftershocks may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock.
There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.

Historical Seismicity

Since our records began in 1932 we’ve had 56 events of M4 or greater within 10km of today’s event.
The largest historic event was M6.6 on 1987/11/24.
The most recent historic event was M4.6 on 04 Nov 2010.

Faults

CFM fault associations: most likely Coyote Creek fault (75%). Alternates: Not associated with a CFM modeled fault (9%), Other CFM faults (16%).*
Nearby faults: San Jacinto fault zone, Borrego Mountain section (Coyote Creek fault) (1.6 km), San Jacinto fault zone, Superstition Mountain section (fault) (5.7 km) and San Jacinto fault zone, Superstition Hills section (13.3 km).**

Additional Information

Links for: USGS earthquake page, ShakeMap, DYFI, waveforms.
Visit our special reports page for further information on local notable earthquakes.

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed. The closest station to the epicenter as recorded in the Live Seismograms Feed below is CI.WMD at approximately 41km away.

CFM Fault: SCEC CFM 5.0 Fault name and closest segment if available; The CFM is maintained by Harvard University, Dept of Earth & Planetary Sciences.

Probability: The probability in percent the earthquake is associated with this fault.

SCSN: Caltech/USGS Southern California Seismic Network

This information is subject to change as more up-to-date data become available.

05/08/2019, M3.5 near Ocotillo Wells

Zackary Newman — Wed, 08 May 2019 20:53:33 +0000

Event

08 May 2019 09:14:59 PDT, (33.213, -116.067), depth 10.6km.
10km NE of Ocotillo Wells, California

Aftershocks

As of 17 May 2019, 12:08PM PDT, there have been 11 aftershocks recorded.
The largest was M1.3 (smallest M0.8).
More aftershocks may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock.
There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.

Possible Foreshocks

There were 4 events during the 3 days prior to the earthquake (within a 10 km radius).
The largest was M1.7 (2019/05/06).

Historical Seismicity

Since our records began in 1932 we’ve had 55 events of M4 or greater within 10km of today’s event.
The largest historic event was M6.6 on 1968/04/09.
The most recent historic event was M4.3 on 09 Feb 2007.

Faults

CFM fault associations: most likely Clark fault; south segment (87.6%). Alternates: Not associated with a CFM modeled fault (4.1%), Other CFM faults (8.3%).*
Nearby faults: San Jacinto fault zone, Borrego Mountain section (Coyote Creek fault) (8.7 km), San Jacinto fault zone, Anza section (Clark fault) (10.1 km) and San Jacinto fault zone, Coyote Creek section (Coyote Creek fault) (12.5 km).**

Additional Information

Links for: USGS earthquake page, ShakeMap, DYFI, waveforms.
Visit our special reports page for further information on local notable earthquakes.

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed.

CFM Fault: SCEC CFM 5.0 Fault name and closest segment if available; The CFM is maintained by Harvard University, Dept of Earth & Planetary Sciences.

Probability: The probability in percent the earthquake is associated with this fault.

SCSN: Caltech/USGS Southern California Seismic Network

This information is subject to change as more up-to-date data become available.

11/29/2018, M3.9 near Ocotillo Wells

Duty Seismologist — Thu, 29 Nov 2018 14:32:02 +0000

29 Nov 2018 05:48:53 PST, (33.015, -115.983), depth 11.4km, 20km SE of Ocotillo Wells, California
Aftershocks: so far there have been no aftershocks recorded. Some may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock. There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.
Historical seismicity: since our records began in 1932 we’ve had 59 events of M4 or greater within 10km of today’s event, the largest was M6.6 (1987/11/24) and the most recent was M4.6 on 04 Nov 2010.
Links for: USGS earthquake page, ShakeMap, DYFI, waveforms.
Visit our special reports page for further information on local notable earthquakes.

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed.