Quake Info: Unconfirmed Earthquake or Seismic-like Event: 7.1 mi South of Chula Vista, San Diego County, California, USA, Tuesday, Jan 24, 2023 at 12:09 pm (GMT -8)

Unconfirmed earthquake or seismic-like event: 7.1 mi south of Chula Vista, San Diego County, California, USA, Tuesday, Jan 24, 2023 at 12:09 pm (GMT -8)

24 Jan 20:13 UTC: First to report: VolcanoDiscovery after 3 minutes.

Earthquake details

Date & time	Jan 24, 2023 20:09:36 UTC -
Local time at epicenter	Tuesday, Jan 24, 2023 at 12:09 pm (GMT -8)
Status	uncertain, preliminary
Magnitude	unknown (3.8?)
Depth	20.0 km
Epicenter latitude / longitude	32.53912°N / 117.11002°W (San Diego, California, United States)
Antipode	32.539°S / 62.89°E
Shaking intensity	Weak shaking
Felt	7 reports
Primary data source	VolcanoDiscovery (User-reported shaking)
Nearest volcano	Salton Buttes (158 km / 98 mi)
Nearby towns and cities	5 km (3 mi) S of Imperial Beach (San Diego County) (pop: 27,400) \| Show on map \| Quakes nearby 11 km (7 mi) SSW of Chula Vista (pop: 265,800) \| Show on map \| Quakes nearby 15 km (10 mi) S of National City (pop: 61,100) \| Show on map \| Quakes nearby 20 km (13 mi) SSE of San Diego (pop: 1,394,900) \| Show on map \| Quakes nearby 22 km (13 mi) SSW of La Presa (San Diego County) (pop: 34,200) \| Show on map \| Quakes nearby 27 km (17 mi) SSW of La Mesa (pop: 60,100) \| Show on map \| Quakes nearby 32 km (20 mi) SSW of El Cajon (pop: 103,700) \| Show on map \| Quakes nearby 780 km (485 mi) SSE of Sacramento (pop: 490,700) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 17.8°C (64 F), humidity: 35%, wind: 3 m/s (6 kts) from WNW
Estimated seismic energy released	3.2 x 10¹⁰ joules (8.78 megawatt hours, equivalent to 7.56 tons of TNT) \| about seismic energy

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Seismograms

Seismic station: Barrett (BAR/CI network) | Distance from quake: 44 km / 27 mi | Show on map | Station Info

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

Seismic station: In-Ko-Pah (IKP/CI network) | Distance from quake: 95 km / 59 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

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

Seismic station: Keenwild Fire Station, Mountain Center, CA, USA (KNW/AZ network) | Distance from quake: 136 km / 84 mi | Show on map | Station Info

Seismic station Keenwild Fire Station, Mountain Center, 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

Seismic station Keenwild Fire Station, Mountain Center, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Keenwild Fire Station, Mountain Center, 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: Glamis (GLA/CI network) | Distance from quake: 221 km / 137 mi | Show on map | Station Info

Seismic station Glamis: 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

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

Seismic station Glamis: 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: Shoshone (SHO/CI network) | Distance from quake: 381 km / 237 mi | Show on map | Station Info

Seismic station Shoshone: 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

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

Seismic station Shoshone: 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 (7)

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

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Chula Vista, San Diego, California (10 km NNW of epicenter) [Map] / Moderate shaking (MMI V) / single vertical bump / 1-2 s : Felt like a sonic boom but through the ground as we stood on our sidewalk. | 2 users found this interesting.

playas de tijuana (1 km SW of epicenter) [Map] / Light shaking (MMI IV) / 1-2 s : It was like a fast wave, the windows make a loud noise and that's it. | 2 users found this interesting.

Playas de Tijuana (15.7 km SSE of epicenter) [Map] / Weak shaking (MMI III) : Fuerte y rápido | One user found this interesting.

La Esperanza [Granjas Familiares], Tijuana, Baja California (2.4 km SSW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s : The windows and sliding glass door started rattling and shaking loudly, though there was no wind | One user found this interesting.

Imperial Beach, San Diego, California (3.5 km NNW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short : It was a single shake | One user found this interesting.

Playas de Tijuana (1.5 km WSW of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 1-2 s : Doors and windows move

Tijuana (2.1 km S of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s

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Unconfirmed earthquake or seismic-like event: 7.1 mi south of Chula Vista, San Diego County, California, USA, Tuesday, Jan 24, 2023 at 12:09 pm (GMT -8) -

Earthquake details

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User reports for this quake (7)

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Unconfirmed earthquake or seismic-like event: 7.1 mi south of Chula Vista, San Diego County, California, USA, Tuesday, Jan 24, 2023 at 12:09 pm (GMT -8) - writeAge(1674590976)

Earthquake details

Data for the same earthquake reported by different agencies

Seismograms

User reports for this quake (7)

Earlier earthquakes in the same area

Support us - Help us upgrade our services!

Unconfirmed earthquake or seismic-like event: 7.1 mi south of Chula Vista, San Diego County, California, USA, Tuesday, Jan 24, 2023 at 12:09 pm (GMT -8) -