SCSNDelta – SCSN

01/23/2025, M4.2 near Delta

Zackary Newman — Thu, 23 Jan 2025 18:32:55 +0000

Event

23 Jan 2025 10:08:47 PST, (32.333, -115.378), depth 15.5km.
18km W of Delta, B.C., Mexico

Aftershocks

As of 23 Jan 2025, 10:25AM PST, there has been 1 aftershock recorded, M2.2.
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 114 events of M4 or greater within 10km of today’s event.
The largest historic event was M7.2 on 2010/04/04.
The most recent historic event was M4.3 on 05 Jun 2024.

Faults

CFM fault associations: most likely Sierra Cucapah fault (85%). Alternates: Not associated with a CFM modeled fault (3%), Other CFM faults (12%).*

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.

06/05/2024, M4.6 near Delta

Zackary Newman — Wed, 05 Jun 2024 13:40:14 +0000

Events

05 Jun 2024 04:58:40 PDT, (32.422, -115.180), depth 15.6km.
8km N of Delta, B.C., Mexico
Likely aftershock of 05/12/2024, M4.9 near Delta, 40746912

05 Jun 2024 M4 events

M 4.3 05 Jun 2024 01:42:42 PDT, (32.397, -115.192), 40614631
M 4.6 05 Jun 2024 04:58:40 PDT, (32.422, -115.180), 40614823

Aftershocks

As of 05 Jun 2024, 06:23AM PDT, there have been 2 aftershocks recorded.
The largest was M2.6 (smallest M2.3).
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 11 events during the 3 days prior to the earthquake (within a 10 km radius).
The largest was M4.3 (2024/06/05).

Historical Seismicity

Since our records began in 1932 we’ve had 88 events of M4 or greater within 10km of today’s event.
The largest historic event was M7.2 on 2010/04/04.
The most recent historic event was M4.3 on 05 Jun 2024.

Faults

CFM fault associations: most likely Not associated with a CFM modeled fault (83%). Alternates: Cierro Prieto fault (10%), Other CFM faults (7%).*

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.

05/12/2024, M4.9 near Delta

Zackary Newman — Sun, 12 May 2024 19:21:26 +0000

Event

12 May 2024 11:22:42 PDT, (32.425, -115.242), depth 6.9km.
9km NNW of Delta, B.C., Mexico

Aftershocks

As of 12 May 2024, 12:14PM PDT, there have been 17 aftershocks recorded.
The largest was M4.5 (smallest M1.4).(A list will be provided in the coming days)
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 10 events during the 3 days prior to the earthquake (within a 10 km radius).
The largest was M3.2 (2024/05/12).

Historical Seismicity

Since our records began in 1932 we’ve had 91 events of M4 or greater within 10km of today’s event.
The largest historic event was M7.2 on 2010/04/04.
The most recent historic event was M4.1 on 08 May 2024.

Faults

CFM fault associations: most likely Cierro Prieto fault (62%). Alternates: Not associated with a CFM modeled fault (25%), Other CFM faults (13%).*

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.

05/07/2024, M4.1 near Delta

Zackary Newman — Wed, 08 May 2024 01:31:13 +0000

Event

07 May 2024 18:14:36 PDT, (32.397, -115.247), depth 11.5km.
7km NW of Delta, B.C., Mexico

Aftershocks

As of 07 May 2024, 06:28PM 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.

Possible Foreshocks

There were 3 events during the 3 days prior to the earthquake (within a 10 km radius).
The largest was M2.1 (2024/05/05).

Historical Seismicity

Since our records began in 1932 we’ve had 99 events of M4 or greater within 10km of today’s event.
The largest historic event was M7.2 on 2010/04/04.
The most recent historic event was M4.0 on 30 Aug 2022.

Faults

CFM fault associations: most likely Cierro Prieto fault (82%). Alternates: Not associated with a CFM modeled fault (14%), Other CFM faults (4%).*

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.

10/04/2022, M3.6 near Delta

Zackary Newman — Tue, 04 Oct 2022 18:49:34 +0000

Event

04 Oct 2022 09:38:33 PDT, (32.338, -115.245), depth 2.8km.
5km WSW of Delta, B.C., Mexico

Aftershocks

As of 04 Oct 2022, 11:42AM 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.

Possible Foreshocks

There were 1 events during the 3 days prior to the earthquake (within a 10 km radius).
The largest was M2.2 (2022/10/01).

Historical Seismicity

Since our records began in 1932 we’ve had 137 events of M4 or greater within 10km of today’s event.
The largest historic event was M7.2 on 2010/04/04.
The most recent historic event was M4.0 on 30 Aug 2022.

Faults

CFM fault associations: most likely Cierro Prieto fault (67%). Alternates: Not associated with a CFM modeled fault (23%), Other CFM faults (10%).*

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. Note that the closest station to epicenter captured in this feed is CI.WMD near the Salton Sea, at 84km 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.

08/30/2022, M4.0 near Delta

Zackary Newman — Tue, 30 Aug 2022 14:05:27 +0000

Event

30 Aug 2022 01:44:40 PDT, (32.407, -115.225), depth 12.2km.
6km NNW of Delta, B.C., Mexico

Aftershocks

As of 30 Aug 2022, 06:50AM 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 104 events of M4 or greater within 10km of today’s event.
The largest historic event was M7.2 on 2010/04/04.
The most recent historic event was M4.8 on 31 Mar 2021.

Faults

CFM fault associations: most likely Not associated with a CFM modeled fault (47%). Alternates: Cierro Prieto fault (39%), Other CFM faults (14%).*

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.

03/31/2021, M4.8 near Delta

Jennifer Andrews — Wed, 31 Mar 2021 10:08:55 +0000

Event

31 Mar 2021 01:56:25 PDT, (32.390, -115.250), depth 19.2km.
7km NW of Delta, B.C., Mexico

Aftershocks

As of 31 Mar 2021, 03:05AM PDT, there have been 2 aftershocks recorded.
The largest was M3.1 (smallest M2.1).
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 109 events of M4 or greater within 10km of today’s event.
The largest historic event was M7.2 on 2010/04/04.
The most recent historic event was M4.0 on 22 Dec 2020.

Faults

CFM fault associations: most likely Cierro Prieto fault (42%). Alternates: Not associated with a CFM modeled fault (28%), Other CFM faults (30%).*

Additional Information

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

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.

09/28/2018, M4.4 near Delta, Baja California

Zackary Newman — Mon, 01 Oct 2018 15:08:41 +0000

28 Sep 2018 19:17:46 PDT, (32.348, -115.183), depth 28.7km, 1km SE of Delta, B.C., Mexico
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 118 events of M4 or greater within 10km of today’s event, the largest was M7.2 (2010/04/04) and the most recent was M4.0 on 08 Apr 2015.
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.