• 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.

• 24 Jan 2024 19:43:19 PST, (34.112, -117.312), depth 15.8km.
• 3km SW of San Bernardino, California

Aftershocks

• As of 05 Feb 2024, 11:19AM PST, there have been 20 aftershocks recorded.
• The largest was M1.6 (smallest M0.6).
• 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 3 events during the 3 days prior to the earthquake (within a 10 km radius).
• The largest was M1.4 (2024/01/23).

Historical Seismicity

• Since our records began in 1932 we’ve had 22 events of M4 or greater within 10km of today’s event.
• The largest historic event was M4.7 on 1936/02/23.
• The most recent historic event was M4.4 on 30 Dec 2015.

Faults

• CFM fault associations: most likely San Jacinto; Claremont fault segment (52%). Alternates: Other CFM faults (48%).*
• Nearby faults: San Jacinto fault zone, San Bernardino section (San Jacinto fault) (1.5 km), San Jacinto fault zone, San Bernardino section (Loma Linda fault) (4.6 km), San Andreas fault zone, San Bernardino Mountains section (South Branch SAF) (6.6 km), San Andreas fault zone, San Bernardino Mountains section (Mill Creek fault) (7.5 km), San Jacinto fault zone, San Bernardino section (Claremont fault) (8.8 km), San Jacinto fault zone, San Bernardino section (Glen Helen fault) (9.9 km), Arrowhead fault (10.4 km), Crafton Hills fault zone (Live Oak Canyon fault) (11.2 km), Waterman Canyon fault zone (Waterman Canyon fault) (12.0 km), San Jacinto fault zone, San Bernardino section (Lytle Creek fault) (12.7 km), San Andreas fault zone, San Bernardino Mountains section (Tokay Hill fault) (14.0 km), Sierra Madre fault zone, Cucamonga section (Cucamonga fault) (14.1 km) and Crafton Hills fault zone (Redlands fault) (14.4 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.

• 05 Jan 2024 10:55:54 PST, (34.258, -117.508), depth 9.2km.
• 1km W of Lytle Creek, California

Aftershocks

• As of 09 Jan 2024, 12:50PM PST, there have been 3 aftershocks recorded.
• The largest was M2.0 (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.

Historical Seismicity

• Since our records began in 1932 we’ve had 20 events of M4 or greater within 10km of today’s event.
• The largest historic event was M5.2 on 1970/09/12.
• The most recent historic event was M4.4 on 30 Dec 2015.

Faults

• CFM fault associations: most likely Glen Helen fault (24%). Alternates: Other CFM faults (76%).*
• Nearby faults: San Jacinto fault zone, San Bernardino section (North Fork Lytle Creek fault) (0.2 km), San Jacinto fault zone, San Bernardino section (Glen Helen fault) (0.8 km), San Jacinto fault zone, San Bernardino section (Middle Fork Lytle Creek fault) (0.9 km), San Jacinto fault zone, San Bernardino section (San Jacinto fault) (0.9 km), San Gabriel fault zone, San Gabriel River section (San Gabriel fault) (2.0 km), San Jacinto fault zone, San Bernardino section (South Fork Lytle Creek fault) (2.6 km), San Andreas fault zone, San Bernardino Mountains section (South Branch SAF) (2.9 km), San Jacinto fault zone, San Bernardino section (Lytle Creek fault) (3.2 km), San Andreas fault zone, Mojave section (3.6 km), San Andreas fault zone, San Bernardino Mountains section (5.5 km), Stoddard Canyon fault (5.8 km), Cleghorn fault zone, southern Cleghorn section (Cleghorn fault) (5.8 km), Icehouse Canyon fault zone (Icehouse Canyon fault) (6.9 km), San Antonio fault (7.5 km), San Andreas fault zone, San Bernardino Mountains section (Peter’s fault) (8.4 km), San Gabriel fault zone, San Gabriel River section (Weber fault) (8.8 km), Sierra Madre fault zone, Cucamonga section (Cucamonga fault) (9.8 km), San Andreas fault zone, San Bernardino Mountains section (Tokay Hill fault) (10.2 km), Red Hill-Etiwanda Avenue fault (Etiwanda Avenue fault) (10.9 km), Waterman Canyon fault zone (Waterman Canyon fault) (13.4 km), Red Hill-Etiwanda Avenue fault (13.7 km) and Cleghorn fault zone, northern Cleghorn section (West Silverwood Lake fault) (15.0 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.

• 01 Aug 2023 22:38:08 PDT, (33.187, -115.573), depth 3.1km.
• 8km SW of Niland, California

Aftershocks

• As of 02 Aug 2023, 07:35AM PDT, there have been 5 aftershocks recorded.
• The largest was M1.8 (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.

Possible Foreshocks

• There were 4 events during the 3 days prior to the earthquake (within a 10 km radius).
• The largest was M2.2 (2023/08/01).

Historical Seismicity

• Since our records began in 1932 we’ve had 90 events of M4 or greater within 10km of today’s event.
• The largest historic event was M5.8 on 1945/08/15.
• The most recent historic event was M4.3 on 30 Apr 2023.

Faults

• CFM fault associations: most likely Not associated with a CFM modeled fault (64%). Alternates: Westmorland fault; main segment (14%), Other CFM faults (22%).*

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.

• 16 Jul 2023 03:37:12 PDT, (31.538, -115.680), depth 5.8km.
• 86km ESE of Maneadero, B.C., Mexico

Aftershocks

• As of 16 Jul 2023, 08:28AM PDT, there have been 2 aftershocks recorded.
• The largest was M3.7 (smallest M3.4).
• 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 1 events during the 3 days prior to the earthquake (within a 10 km radius).
• The largest was M2.0 (2023/07/16).

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 M5.1 on 2020/08/17.
• The most recent historic event was M4.0 on 07 Nov 2022.

Faults

• CFM fault associations: most likely Not associated with a CFM modeled fault (100%).*

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.

• 31 Mar 2023 18:16:07 PDT, (33.382, -116.905), depth 14.4km.
• 5km NW of Palomar Observatory, California

Aftershocks

• As of 31 Mar 2023, 07:17PM PDT, there have been 3 aftershocks recorded.
• The largest was M1.5 (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.

Historical Seismicity

• Since our records began in 1932 we’ve had 4 events of M4 or greater within 10km of today’s event.
• The largest historic event was M4.4 on 2018/08/15.
• The most recent historic event was M4.0 on 30 Jan 2022.

Faults

• CFM fault associations: most likely Earthquake Valley fault; west segment (62%). Alternates: Other CFM faults (38%).*
• Nearby faults: Elsinore fault zone, Julian section (Elsinore fault) (6.6 km), Elsinore fault zone, Temecula section (Wildomar fault) (10.1 km) and Agua Tibia Mountain fault zone (13.8 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.

• 25 Jan 2023 02:00:54 PST, (33.885, -118.705), depth 14.7km.
• 16km S of Malibu Beach, California

Aftershocks

• As of 25 Jan 2023, 01:17PM PST, there have been 6 aftershocks recorded.
• The largest was M3.6 (smallest M1.3).
• 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.

Historical Seismicity

• Since our records began in 1932 we’ve had 4 events of M4 or greater within 10km of today’s event.
• The largest historic event was M5.2 on 1979/01/01.
• The most recent historic event was M5.0 on 19 Jan 1989.

Faults

• CFM fault associations: most likely San Pedro Basin fault; north segment (78%). Alternates: Not associated with a CFM modeled fault (17%), Other CFM faults (5%).*
• Nearby faults: San Pedro Basin fault zone (San Pedro Basin fault) (2.2 km), Palos Verdes fault zone, Santa Monica Basin section (Palos Verdes fault) (10.3 km) and Anacapa-Dume fault (12.1 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.

• 31 Dec 2022 04:12:26 PST, (33.398, -116.392), depth 2.5km.
• 16km N of Borrego Springs, California

Aftershocks

• As of 31 Dec 2022, 04:25AM PST, there have been 5 aftershocks recorded.
• The largest was M1.6 (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.

Possible Foreshocks

• There were 4 events during the 3 days prior to the earthquake (within a 10 km radius).
• The largest was M1.7 (2022/12/30).

Historical Seismicity

• Since our records began in 1932 we’ve had 38 events of M4 or greater within 10km of today’s event.
• The largest historic event was M6.0 on 1937/03/25.
• The most recent historic event was M4.9 on 04 Apr 2020.

Faults

• CFM fault associations: most likely Clark fault; south segment (33%). Alternates: Not associated with a CFM modeled fault (5%), Other CFM faults (62%).*
• Nearby faults: San Jacinto fault zone, Anza section (1.4 km), San Jacinto fault zone, Anza section (Clark fault) (1.7 km), San Jacinto fault zone, Coyote Creek section (Coyote Creek fault) (1.9 km), San Jacinto fault zone, Coyote Creek section (6.1 km) and San Jacinto fault zone, Anza section (Buck Ridge fault) (6.4 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.

• 11 Sep 2020 00:55:45 PDT, (36.440, -117.995), depth 3.9km.
• 18km SSE of Lone Pine, California
• Likely aftershock of 2020/06/24 m5.8 near Lone Pine

Aftershocks

• As of 11 Sep 2020, 10:12AM PDT, there have been 5 aftershocks recorded.
• The largest was M3.6 (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.

Possible Foreshocks

• There were 3 events during the 3 days prior to the earthquake (within a 10 km radius).
• The largest was M1.4 (2020/09/09).

Historical Seismicity

• Since our records began in 1932 we’ve had 18 events of M4 or greater within 10km of today’s event.
• The largest historic event was M5.8 on 2020/06/24.
• The most recent historic event was M4.6 on 24 Jun 2020.

Faults

• CFM fault associations: most likely Not associated with a CFM modeled fault (41%). Alternates: Independance; Sierra Nevada fault segment (38%), Other CFM faults (21%).*
• Nearby faults: Owens Valley fault zone, 1872 rupture section (Owens Valley fault) (1.2 km), Owens Valley fault zone, 1872 rupture section (1.7 km), Southern Sierra Nevada fault zone, Haiwee Reservoir section (3.1 km), Southern Sierra Nevada fault zone, Independence section (Independence fault) (11.5 km) and unnamed faults south side Owens Lake (12.0 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.

• 30 Jul 2020 04:29:29 PDT, (34.302, -118.438), depth 8.8km.
• 1km SE of Sylmar, California, near the neighbourhoods of San Fernando and Pacoima.
• Shaking was widely felt within the greater LA metropolitan area, with peak shaking estimated as MMI VI (strong) for those in the epicentral region and maximum recorded instrumental intensity of MMI V (moderate). Moderate shaking was recorded in the San Fernando valley, weak shaking throughout LA and light shaking out to Riverside, Long Peach, Oxnard and Palmdale.
• No damage would be anticipated for this earthquake.

Aftershocks

• As of 31 Jul 2020, 03:42PM PDT, there have been 94 aftershocks recorded.
• The largest was M3.8 (smallest M0.7).
• We have recorded 2 events of M≥3 and 14 events of M≥2.
• 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 108 events of M4 or greater within 10km of today’s event.
• The largest historic event was M6.7 on 17 Jan 1994, the Northridge earthquake.
• This earthquake was also near the rupture of the M6.7 San Fernando earthquake.
• Recent historic events include M4.4 on 17 Mar 2014 (to S) and M4.2 on 1 Sep 2011 (to NW).

Faults

• CFM fault associations: most likely Mission Hills fault (27%). Alternates: Other CFM faults (73%).*
• Nearby faults: Sierra Madre fault zone, San Fernando section (Sylmar fault) (0.2 km), Sierra Madre fault zone, San Fernando section (0.8 km), Sierra Madre fault zone, San Fernando section (Mission Wells fault) (1.3 km), Sierra Madre fault zone, Santa Susana section (2.0 km), Sierra Madre fault zone, San Fernando section (Reservoir fault) (2.4 km), Sierra Madre fault zone, San Fernando section (Tujunga fault) (2.6 km), Sierra Madre fault zone, Santa Susana section (North Olive View fault) (2.8 km), Mission Hills fault zone (Mission Hills fault) (3.1 km), Sierra Madre fault zone, Santa Susana section (Olive View fault) (3.3 km), Sierra Madre fault zone, San Fernando section (Hospital fault) (3.6 km), Sierra Madre fault zone, Santa Susana section (Santa Susana fault) (3.7 km), Sierra Madre fault zone, San Fernando section (Kagel fault) (4.6 km), Sierra Madre fault zone, San Fernando section (Lopez fault) (4.9 km), Sierra Madre fault zone, San Fernando section (Buck Canyon fault) (5.4 km), Sierra Madre fault zone, San Fernando section (Lakeview fault) (5.5 km), Sierra Madre fault zone, San Fernando section [Lopez (Little Tujunga) fault] (6.6 km), San Gabriel fault zone, Newhall section (San Gabriel fault) (6.7 km), San Gabriel fault zone, Newhall section (Dillon fault) (7.0 km), San Gabriel fault zone, Newhall section (Demille fault) (7.0 km), Mission Hills fault zone (Granda Hills fault) (7.0 km), Sierra Madre fault zone, San Fernando section (Buck Canyon-Watt fault) (7.0 km), Whitney fault (7.2 km), San Gabriel fault zone, Honor Rancho section (Placerita fault) (7.6 km), San Gabriel fault zone, Honor Rancho section (San Gabriel fault) (7.6 km), Northridge Hills fault (8.3 km), Sierra Madre fault zone, San Fernando section (Sunland fault) (10.1 km), San Gabriel fault zone, Newhall section (Gold Creek fault) (12.6 km) and Simi-Santa Rosa fault zone, Simi-Santa Rosa section (Simi fault) (14.9 km).**
• The source mechanism indicates strike-slip motion on a west-southwest striking near vertical fault. This suggests the nearby major thrust fault systems were not responsible.

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.