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Minor mag. 1.0 earthquake - 11km SSW of Borrego Springs, CA, on Thursday, Dec 1, 2022 at 3:54 am (GMT -8) -

Minor magnitude 1.0 earthquake at 14 km depth

1 Dec 11:57 UTC: First to report: USGS after 3 minutes.
1 Dec 11:58: Magnitude recalculated from 1.3 to 1.0. Hypocenter depth recalculated from 12.2 to 12.4 km (from 7.6 to 7.7 mi).
1 Dec 18:44: Hypocenter depth recalculated from 12.4 to 14.1 km (from 7.7 to 8.8 mi).

Earthquake details

Date & time	Dec 1, 2022 11:54:45 UTC -
Local time at epicenter	Thursday, Dec 1, 2022 at 3:54 am (GMT -8)
Status	Confirmed
Magnitude	1
Depth	14.1 km
Epicenter latitude / longitude	33.1675°N / 116.43233°W (California, United States)
Antipode	33.168°S / 63.568°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Salton Buttes (76 km / 47 mi)
Nearby towns and cities	11 km (7 mi) SSW of Borrego Springs (pop: 3,430) \| Show on map \| Quakes nearby 61 km (38 mi) E of Escondido (pop: 151,500) \| Show on map \| Quakes nearby 65 km (40 mi) NE of El Cajon (pop: 103,700) \| Show on map \| Quakes nearby 65 km (40 mi) SSW of Indian Wells (pop: 87,500) \| Show on map \| Quakes nearby 68 km (42 mi) E of San Marcos (pop: 92,900) \| Show on map \| Quakes nearby 76 km (47 mi) ESE of Temecula (pop: 112,000) \| Show on map \| Quakes nearby 85 km (53 mi) NE of Chula Vista (pop: 265,800) \| Show on map \| Quakes nearby 85 km (53 mi) NE of San Diego (pop: 1,394,900) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 3.3°C (38 F), humidity: 90%, wind: 4 m/s (8 kts) from W
Estimated seismic energy released	2 x 10⁶ joules (0.554 kilowatt hours) \| about seismic energy

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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.

Mag.	Depth	Location	Source
1.0	14 km	11km SSW of Borrego Springs, CA	USGS
1.0	14 km	Southern California	RaspberryShake
1.0	10 km	Southern California	IRIS

Most recent quakes Top 20 past 24 hrs Quakes in the US California

Seismograms

Seismic station: Lost Valley Scout Camp, CA, USA (LVA2/AZ network) | Distance from quake: 24 km / 15 mi | Show on map | Station Info

Seismic station Lost Valley Scout Camp, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Lost Valley Scout Camp, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Lost Valley Scout Camp, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Toro Peak, Riverside Co, CA, USA (TRO/AZ network) | Distance from quake: 40 km / 25 mi | Show on map | Station Info

Seismic station Toro Peak, Riverside Co, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Toro Peak, Riverside Co, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Toro Peak, Riverside Co, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Jim Saunders Place, Anza, CA, USA (SND/AZ network) | Distance from quake: 46 km / 29 mi | Show on map | Station Info

Seismic station Jim Saunders Place, Anza, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Jim Saunders Place, Anza, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Jim Saunders Place, Anza, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Pinon Flat Observatory, CA, USA (BPH11/PY network) | Distance from quake: 49 km / 30 mi | Show on map | Station Info

Seismic station Pinon Flat Observatory, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Pinon Flat Observatory, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Pinon Flat Observatory, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Barrett (BAR/CI network) | Distance from quake: 59 km / 36 mi | Show on map | Station Info

Seismic station Barrett: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Barrett: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Barrett: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

At magnitude 1.0, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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