SCSNM3.5 – SCSN https://www.scsn.org/index.html Southern California Seismic Network Sun, 27 Apr 2025 14:54:32 +0000 en-US hourly 1 https://wordpress.org/?v=5.1.12 02/22/2025, M3.5 near Cabazon ../../../../index.php/2025/02/22/02-22-2025-m3-5-near-cabazon/index.html ../../../../index.php/2025/02/22/02-22-2025-m3-5-near-cabazon/#respond Sat, 22 Feb 2025 23:29:43 +0000 http://www.scsn.org/?p=5116 ]]> Event

  • 22 Feb 2025 14:46:12 PST, (34.080, -116.783), depth 10.1km.
  • 18km N of Cabazon, California

Aftershocks

  • As of 22 Feb 2025, 03:15PM PST, 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 72 events of M4 or greater within 10km of today’s event.
  • The largest historic event was M6.3 on 1992/06/28.
  • The most recent historic event was M4.5 on 08 May 2018.

Faults

  • CFM fault associations: most likely Mill Creek fault strand (50%). Alternates: Not associated with a CFM modeled fault (4%), Other CFM faults (46%).*
  • Nearby faults: San Gorgonio Mountain fault (1.2 km), San Andreas fault zone, San Bernardino Mountains section (Mill Creek fault) (1.2 km), San Andreas fault zone, San Bernardino Mountains section (Mission Creek fault) (3.3 km).**

Additional Information




*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.

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02/10/2025, M3.5 near San Bernardino ../../../../index.php/2025/02/10/02-10-2025-m3-5-near-san-bernardino/index.html ../../../../index.php/2025/02/10/02-10-2025-m3-5-near-san-bernardino/#respond Mon, 10 Feb 2025 17:57:58 +0000 http://www.scsn.org/?p=5110 ]]> Event

  • 10 Feb 2025 09:44:55 PST, (34.170, -117.262), depth 7.5km.
  • 5km NNE of San Bernardino, California

Aftershocks

  • As of 10 Feb 2025, 09:51AM PST, there has been 1 aftershock recorded, M3.0.
  • 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 8 events during the 3 days prior to the earthquake (within a 10 km radius).
  • The largest was M1.7 (2025/02/10).

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 M4.8 on 1994/04/06.
  • The most recent historic event was M4.2 on 25 Jan 2024.

Faults

  • Nearby faults: San Andreas fault zone, San Bernardino Mountains section (South Branch SAF) (0.2 km), San Andreas fault zone, San Bernardino Mountains section (Mill Creek fault) (0.2 km), Arrowhead fault (2.5 km), Waterman Canyon fault zone (Waterman Canyon fault) (4.6 km), San Jacinto fault zone, San Bernardino section (San Jacinto fault) (8.0 km), Santa Ana fault zone (Santa Ana fault) (9.4 km), San Jacinto fault zone, San Bernardino section (Glen Helen fault) (11.0 km), Cleghorn fault zone, southern Cleghorn section (Cleghorn fault) (11.1 km), Tunnel Ridge fault (11.5 km), San Andreas fault zone, San Bernardino Mountains section (Tokay Hill fault) (13.1 km), Cleghorn fault zone, northern Cleghorn section (Grass Valley fault) (13.3 km).**

Additional Information


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.

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01/22/2025, M3.5 near Boron ../../../../index.php/2025/01/23/01-22-2025-m3-5-near-boron/index.html ../../../../index.php/2025/01/23/01-22-2025-m3-5-near-boron/#respond Thu, 23 Jan 2025 15:15:15 +0000 http://www.scsn.org/?p=5105 ]]> Event

  • 22 Jan 2025 21:27:56 PST, (35.158, -117.353), depth 4.4km.
  • 32km ENE of Boron, California

Aftershocks

  • As of 23 Jan 2025, 07:11AM PST, 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 5 events of M4 or greater within 10km of today’s event.
  • The largest historic event was M4.7 on 1992/06/29.
  • The most recent historic event was M4.2 on 27 Dec 2015.

Faults

  • CFM fault associations: most likely Gravel Hills; Harper Lake fault segment (89%). Alternates: Not associated with a CFM modeled fault (10%), Other CFM faults (1%).*
  • Nearby faults: Harper fault zone (Gravel Hills fault) (1.3 km), Harper fault zone (Harper Valley fault) (3.7 km), Harper fault zone (Black Mountain fault) (5.8 km), Harper fault zone (Cuddeback fault) (7.1 km), Lenwood-Lockhart fault zone, Lockhart section (9.8 km), Lenwood-Lockhart fault zone, Lockhart section (North Lockhart fault) (12.5 km), Blackwater fault zone (Blackwater fault) (13.9 km) and Lenwood-Lockhart fault zone, Lenwood section (Lockhart fault) (15.1 km).**

Additional Information


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.

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11/22/2024, M3.7 near Malibu ../../../../index.php/2024/11/22/11-22-2024-m3-5-near-malibu/index.html ../../../../index.php/2024/11/22/11-22-2024-m3-5-near-malibu/#respond Fri, 22 Nov 2024 22:31:43 +0000 http://www.scsn.org/?p=5092 ]]> Event

  • 22 Nov 2024 14:15:54 PST, (34.058, -118.807), depth 10.6km.
  • 6km N of Malibu, California

Aftershocks

  • As of 24 Nov 2024, 06:26AM PST, there have been 3 aftershocks recorded.
  • The largest was M1.8 (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 7 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 M4.7 on 12 Sep 2024.

Faults

  • CFM fault associations: most likely Anacapa; Dume fault segment (52%). Alternates: Not associated with a CFM modeled fault (4%), Other CFM faults (44%).*
  • Nearby faults: Malibu Coast fault zone (Malibu Coast fault) (2.1 km), Malibu Coast fault zone (Escondido thrust) (3.2 km), Malibu Coast fault zone (Latigo fault) (4.0 km), Santa Monica fault (offshore) (4.5 km), Malibu Coast fault zone (Solstice fault) (4.6 km), Malibu Coast fault zone (Puerco Canyon fault) (6.5 km), Anacapa-Dume fault (9.0 km), San Pedro Basin fault zone (San Pedro Basin fault) (12.1 km) and Boney Mountain fault (12.7 km).**

Additional Information


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.

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11/16/2024, M3.5 near Fontana ../../../../index.php/2024/11/17/11-16-2024-m3-5-near-fontana/index.html ../../../../index.php/2024/11/17/11-16-2024-m3-5-near-fontana/#respond Sun, 17 Nov 2024 17:17:16 +0000 http://www.scsn.org/?p=5086 ]]> Event

  • 16 Nov 2024 14:17:04 PST, (34.142, -117.500), depth 2.8km.
  • 6km NW of Fontana, California

Aftershocks

  • As of 17 Nov 2024, 09:12AM PST, there have been 14 aftershocks recorded.
  • The largest was M3.4 (smallest M0.9).
  • 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 M1.2 (2024/11/16).

Historical Seismicity

  • Since our records began in 1932 we’ve had 28 events of M4 or greater within 10km of today’s event.
  • The largest historic event was M5.5 on 1990/02/28.
  • The most recent historic event was M4.2 on 25 Jan 2024.

Faults

  • CFM fault associations: most likely Cucamonga fault (37%). Alternates: Not associated with a CFM modeled fault (15%), Other CFM faults (48%).*
  • Nearby faults: Red Hill-Etiwanda Avenue fault (Etiwanda Avenue fault) (2.1 km), Sierra Madre fault zone, Cucamonga section (Cucamonga fault) (2.2 km), Red Hill-Etiwanda Avenue fault (4.6 km), San Jacinto fault zone, San Bernardino section (Lytle Creek fault) (7.0 km), Stoddard Canyon fault (12.7 km), San Andreas fault zone, San Bernardino Mountains section (Peter’s fault) (12.8 km), San Gabriel fault zone, San Gabriel River section (San Gabriel fault) (13.4 km), San Andreas fault zone, San Bernardino Mountains section (14.2 km) and Waterman Canyon fault zone (Waterman Canyon fault) (14.8 km).**

Additional Information


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.

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10/01/2024, M3.5 near Ontario ../../../../index.php/2024/10/01/10-01-2024-m3-5-near-ontario/index.html ../../../../index.php/2024/10/01/10-01-2024-m3-5-near-ontario/#respond Tue, 01 Oct 2024 20:40:56 +0000 http://www.scsn.org/?p=5048 ]]> Event

  • 01 Oct 2024 12:56:21 PDT, (34.040, -117.608), depth 4.9km.
  • 2km SE of Ontario, California

Aftershocks

  • As of 01 Oct 2024, 01:31PM PDT, there has been 1 aftershock recorded, M1.7.
  • 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

  • Likely aftershock to M3.9 on 09/07/2024.
  • There were 2 events during the 3 days prior to the earthquake (within a 10 km radius).
  • The largest was M3.1 (2024/09/28).

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 M5.5 on 1990/02/28.
  • The most recent historic event was M4.4 on 29 Aug 2018.

Faults

  • CFM fault associations: most likely Fontana Seismicity lineament (67%). Alternates: Not associated with a CFM modeled fault (28%), Other CFM faults (5%).*
  • Nearby faults: Red Hill-Etiwanda Avenue fault (6.7 km), Elsinore fault zone, Chino section (Chino fault) (11.5 km), San Jose fault (11.7 km), Sierra Madre fault zone, Cucamonga section (Cucamonga fault) (12.8 km), Sierra Madre fault zone, Sierra Madre E section (Sierra Madre fault) (13.4 km), Red Hill-Etiwanda Avenue fault (Etiwanda Avenue fault) (14.7 km) and Stoddard Canyon fault (14.9 km).**

Additional Information


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.

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07/24/2024, M3.5 near Ocotillo Wells ../../../../index.php/2024/07/25/07-24-2024-m3-5-near-ocotillo-wells/index.html ../../../../index.php/2024/07/25/07-24-2024-m3-5-near-ocotillo-wells/#respond Thu, 25 Jul 2024 17:44:30 +0000 http://www.scsn.org/?p=5011 ]]> 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


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.

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07/17/2024, M3.5 near Borrego Springs ../../../../index.php/2024/07/18/07-17-2024-m3-5-near-borrego-springs/index.html ../../../../index.php/2024/07/18/07-17-2024-m3-5-near-borrego-springs/#respond Thu, 18 Jul 2024 14:51:48 +0000 http://www.scsn.org/?p=5001 ]]> Event

  • 17 Jul 2024 14:59:27 PDT, (33.195, -116.387), depth 13.7km.
  • 7km S of Borrego Springs, California

Aftershocks

  • As of 18 Jul 2024, 07:43AM PDT, there have been 16 aftershocks recorded.
  • The largest was M2.6 (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 8 events during the 3 days prior to the earthquake (within a 10 km radius).
  • The largest was M2.7 (2024/07/16).

Historical Seismicity

  • Since our records began in 1932 we’ve had 27 events of M4 or greater within 10km of today’s event.
  • The largest historic event was M5.5 on 1969/04/28.
  • The most recent historic event was M4.1 on 21 May 2005.

Faults

  • CFM fault associations: most likely Not associated with a CFM modeled fault (88%). Alternates: Coyote Creek fault (6%), Other CFM faults (6%).*
  • Nearby faults: Elsinore fault zone, Julian section (Earthquake Valley fault) (6.6 km), Elsinore fault zone, Earthquake Valley fault, Julian section (12.2 km), San Jacinto fault zone, Coyote Creek section (Coyote Creek fault) (12.3 km) and San Jacinto fault zone, Anza section (14.6 km).**

Additional Information


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.

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06/02/2024, M3.4 near South Pasadena ../../../../index.php/2024/06/02/06-02-2024-m3-5-near-south-pasadena/index.html ../../../../index.php/2024/06/02/06-02-2024-m3-5-near-south-pasadena/#respond Sun, 02 Jun 2024 17:15:57 +0000 http://www.scsn.org/?p=4968 ]]> Event

  • 02 Jun 2024 09:56:15 PDT, (34.087, -118.168), depth 11.3km.
  • 4km SSW of South Pasadena, California

Aftershocks

  • As of 02 Jun 2024, 10:10AM PDT, there has been 1 aftershock recorded, M1.5.
  • 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 15 events of M4 or greater within 10km of today’s event.
  • The largest historic event was M5.9 on 1987/10/01.
  • The most recent historic event was M4.5 on 19 Sep 2020.

Faults

  • CFM fault associations: most likely Puente Hills thrust fault (27%). Alternates: Other CFM faults (73%).*
  • Nearby faults: Raymond fault (3.7 km), Eagle Rock fault (4.5 km), East Montebello fault (7.8 km), Verdugo fault (8.5 km), Hollywood fault (9.7 km), Sierra Madre fault zone, Sierra Madre C section (Sierra Madre fault) (12.1 km), Sierra Madre fault zone, Sierra Madre B section (Sierra Madre fault) (12.6 km), San Gabriel fault zone, Big Tujunga section (South Branch-Vasquez Creek) (13.3 km), Sierra Madre fault zone, Sierra Madre B section (13.7 km), Elsinore fault zone, Whittier section (Whittier fault) (13.9 km) and Sierra Madre fault zone, Sierra Madre B section (Gould Canyon thrust) (14.8 km).**

Additional Information


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.

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12/29/2023, M3.5 near Bodfish ../../../../index.php/2023/12/29/12-29-2023-m3-5-near-bodfish/index.html ../../../../index.php/2023/12/29/12-29-2023-m3-5-near-bodfish/#respond Fri, 29 Dec 2023 20:43:25 +0000 http://www.scsn.org/?p=4868 ]]> Event

  • 29 Dec 2023 18:26:27 PST, (35.400, -118.645), depth 5.2km.
  • 25km SSW of Bodfish, California

Aftershocks

  • As of 09 Jan 2024, 12:41PM PST, there have been 4 aftershocks recorded.
  • The largest was M1.4 (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 77 events of M4 or greater within 10km of today’s event.
  • The largest historic event was M5.6 on 1952/07/25.
  • The most recent historic event was M4.2 on 19 Apr 2014.

Faults

  • CFM fault associations: most likely Not associated with a CFM modeled fault (90%). Alternates: Kern Canyon fault (6%), Other CFM faults (4%).*
  • Nearby faults: Kern Gorge fault (6.3 km), White Wolf fault zone (White Wolf fault) (12.6 km), unnamed faults (1952 earthquake fractures) (13.0 km) and Edison fault (13.3 km).**

Additional Information


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.

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