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Minor mag. 1.5 earthquake - 1km NW of Brawley, CA, on Thursday, Dec 1, 2022 at 1:16 pm (GMT -8) -

Minor magnitude 1.5 earthquake at 8 km depth

1 Dec 21:19 UTC: First to report: USGS after 3 minutes.
1 Dec 21:20: Magnitude recalculated from 1.4 to 1.5. Hypocenter depth recalculated from 5.5 to 6.6 km (from 3.4 to 4.1 mi).
2 Dec 18:32: Hypocenter depth recalculated from 6.6 to 7.8 km (from 4.1 to 4.8 mi). Epicenter location corrected by 0.6 km (0.4 mi) towards S.

Earthquake details

Date & time	Dec 1, 2022 21:16:18 UTC -
Local time at epicenter	Thursday, Dec 1, 2022 at 1:16 pm (GMT -8)
Status	Confirmed
Magnitude	1.5
Depth	7.8 km
Epicenter latitude / longitude	32.97767°N / 115.53367°W (California, United States)
Antipode	32.978°S / 64.466°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Salton Buttes (26 km / 16 mi)
Nearby towns and cities	0 km (0 mi) WSW of Brawley (Imperial County) (pop: 25,900) \| Show on map \| Quakes nearby 11 km (7 mi) SE of Westmorland (pop: 2,270) \| Show on map \| Quakes nearby 15 km (9 mi) NNE of Imperial (pop: 17,100) \| Show on map \| Quakes nearby 17 km (10 mi) S of Calipatria (pop: 7,420) \| Show on map \| Quakes nearby 21 km (13 mi) N of El Sentro (pop: 44,000) \| Show on map \| Quakes nearby 23 km (15 mi) NW of Holtville (pop: 6,400) \| Show on map \| Quakes nearby 33 km (21 mi) N of Calexico (pop: 40,100) \| Show on map \| Quakes nearby 39 km (24 mi) N of Santa Isabel (Baja California, Mexico) (pop: 29,300) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 19.5°C (67 F), humidity: 37%, wind: 2 m/s (4 kts) from SW
Estimated seismic energy released	1.1 x 10⁷ joules (3.12 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
1.5	7.8 km	1km NW of Brawley, CA	USGS
1.5	7.8 km	Calif.-Baja Calif. Border Region	RaspberryShake
1.5	10 km	Calif.-Baja Calif. Border Region	IRIS

Most recent quakes Top 20 past 24 hrs Quakes in Mexico California

Seismograms

Seismic station: In-Ko-Pah (IKP/CI network) | Distance from quake: 65 km / 40 mi | Show on map | Station Info

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

Seismic station In-Ko-Pah: 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: Big Chuckawalla Mtns (BC3/CI network) | Distance from quake: 76 km / 47 mi | Show on map | Station Info

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

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

Seismic station Big Chuckawalla Mtns: 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: Toro Peak, Riverside Co, CA, USA (TRO/AZ network) | Distance from quake: 103 km / 64 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: Pinon Flat, California, USA (XPFO/II network) | Distance from quake: 111 km / 69 mi | Show on map | Station Info

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

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

Seismic station Pinon Flat, California, 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: Cary Ranch, Anza, CA, USA (CRY/AZ network) | Distance from quake: 130 km / 81 mi | Show on map | Station Info

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

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

Seismic station Cary Ranch, 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

User reports for this quake

At magnitude 1.5, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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