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Weak mag. 2.1 earthquake - 14 mi southwest of Clearlake, Lake County, California, USA, on Tuesday, Nov 29, 2022 at 6:20 pm (GMT -8) -

Weak magnitude 2.1 earthquake at 1 km depth

30 Nov 02:23 UTC: First to report: EMSC after 3 minutes.
30 Nov 02:23: Now using data updates from USGS
30 Nov 19:22: Magnitude recalculated from 2.3 to 2.1. Hypocenter depth recalculated from 1.3 to 1.0 km (from 0.8 to 0.6 mi).

Earthquake details

Date & time	Nov 30, 2022 02:20:32 UTC -
Local time at epicenter	Tuesday, Nov 29, 2022 at 6:20 pm (GMT -8)
Status	Confirmed
Magnitude	2.1
Depth	1.0 km
Epicenter latitude / longitude	38.79567°N / 122.76617°W (Sonoma, California, United States)
Antipode	38.796°S / 57.234°E
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Clear Lake (19 km / 12 mi)
Nearby towns and cities	5 km (3 mi) SW of Cobb (pop: 1,780) \| Show on map \| Quakes nearby 22 km (14 mi) SSW of Clearlake (Lake County) (pop: 15,200) \| Show on map \| Quakes nearby 22 km (14 mi) E of Cloverdale (Sonoma County) (pop: 8,810) \| Show on map \| Quakes nearby 22 km (14 mi) NNE of Russian River (Sonoma County) (pop: 11,700) \| Show on map \| Quakes nearby 22 km (14 mi) NNE of Russian River (pop: 11,700) \| Show on map \| Quakes nearby 28 km (17 mi) N of Windsor (Sonoma County) (pop: 27,500) \| Show on map \| Quakes nearby 40 km (25 mi) N of Santa Rosa (pop: 175,000) \| Show on map \| Quakes nearby 88 km (54 mi) NW of Fairfield (pop: 113,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 1.9°C (35 F), humidity: 58%, wind: 1 m/s (1 kts) from SW
Estimated seismic energy released	8.9 x 10⁷ joules (24.8 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
2.1	1 km	2km NNW of The Geysers, CA	USGS
2.2	1 km	NORTHERN CALIFORNIA	EMSC
2.1	1 km	Northern California	RaspberryShake
2.3	10 km	Northern California	IRIS

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

Seismograms

Seismic station: Marconi Conference Center, Marshall, CA, USA (MCCM/BK network) | Distance from quake: 73 km / 45 mi | Show on map | Station Info

Seismic station Marconi Conference Center, Marshall, 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 Marconi Conference Center, Marshall, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Marconi Conference Center, Marshall, 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: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 224 km / 139 mi | Show on map | Station Info

Seismic station Columbia College, Columbia, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Columbia College, Columbia, 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: San Andreas Geophysical Obs., Hollister, CA, USA (SAO/BK network) | Distance from quake: 254 km / 158 mi | Show on map | Station Info

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station San Andreas Geophysical Obs., Hollister, 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: Mammoth (MLAC/CI network) | Distance from quake: 367 km / 228 mi | Show on map | Station Info

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

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

Seismic station: Tinemaha (TIN/CI network) | Distance from quake: 442 km / 275 mi | Show on map | Station Info

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

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

Seismic station Tinemaha: 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 2.1, such a quake wouldn't normally be felt by people except under very favorable conditions.

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

There are no user reports for this quake.

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