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Light mag. 3.6 earthquake - 24 mi northwest of Brawley, Imperial County, California, USA, on Saturday, Mar 18, 2023 at 9:52 am (GMT -7) -

Light magnitude 3.6 earthquake at 7 km depth

18 Mar 16:54 UTC: First to report: USGS after 3 minutes.
18 Mar 16:57: Magnitude recalculated from 3.4 to 3.6.
19 Mar 14:40: Hypocenter depth recalculated from 8.0 to 7.2 km (from 5 to 4.5 mi).

Earthquake details

Date & time	Mar 18, 2023 16:52:07 UTC -
Local time at epicenter	Saturday, Mar 18, 2023 at 9:52 am (GMT -7)
Status	Confirmed
Magnitude	3.6
Depth	7.2 km
Epicenter latitude / longitude	33.24667°N / 115.799°W (Imperial, California, United States)
Antipode	33.247°S / 64.201°E
Shaking intensity	Weak shaking
Felt	1 report
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Salton Buttes (17 km / 11 mi)
Nearby towns and cities	13 km (8 mi) SSW of Bombay Beach (pop: 295) \| Show on map \| Quakes nearby 16 km (10 mi) ESE of Salton City (pop: 3,760) \| Show on map \| Quakes nearby 39 km (24 mi) NW of Brawley (Imperial County) (pop: 25,900) \| Show on map \| Quakes nearby 49 km (31 mi) NNW of Imperial (pop: 17,100) \| Show on map \| Quakes nearby 55 km (34 mi) NNW of El Sentro (pop: 44,000) \| Show on map \| Quakes nearby 59 km (37 mi) SE of Coachella (pop: 44,600) \| Show on map \| Quakes nearby 65 km (41 mi) SE of Indian Wells (pop: 87,500) \| Show on map \| Quakes nearby 784 km (487 mi) SE of Sacramento (pop: 490,700) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Broken Clouds 21.5°C (71 F), humidity: 38%, wind: 3 m/s (5 kts) from NNW
Estimated seismic energy released	1.6 x 10¹⁰ joules (4.4 megawatt hours, equivalent to 3.79 tons of TNT) \| 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
3.6	7.2 km	13km SSW of Bombay Beach, CA	USGS
3.6	10 km	Southern California	IRIS
3.6	7.2 km	Southern California	RaspberryShake
3.4	8 km	SOUTHERN CALIFORNIA	EMSC

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

Seismograms

Seismic station: Big Chuckawalla Mtns (BC3/CI network) | Distance from quake: 56 km / 35 mi | Show on map | Station Info

Seismic station Big Chuckawalla Mtns: 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 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, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Belle Mountain Joshua Tree (BEL/CI network) | Distance from quake: 86 km / 53 mi | Show on map | Station Info

Seismic station Belle Mountain Joshua Tree: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Belle Mountain Joshua Tree: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Belle Mountain Joshua Tree: 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: Big Bear Solar Observatory (BBR/CI network) | Distance from quake: 153 km / 95 mi | Show on map | Station Info

Seismic station Big Bear Solar Observatory: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Big Bear Solar Observatory: 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: Edwards 2 (EDW2/CI network) | Distance from quake: 272 km / 169 mi | Show on map | Station Info

Seismic station Edwards 2: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Edwards 2: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Edwards 2: 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: Mammoth (MLAC/CI network) | Distance from quake: 560 km / 348 mi | Show on map | Station Info

Seismic station Mammoth: 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: 0.5-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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

Seismic station Mammoth: 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 (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Brawley / not felt

Westmorland, CA / Weak shaking (MMI III) / horizontal (sideways) swinging (reported through our app)

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