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Minor mag. 0.9 earthquake - 10km NW of The Geysers, CA, on Wednesday, Nov 30, 2022 at 1:53 am (GMT -8) -

Minor magnitude 0.9 earthquake at 2 km depth

30 Nov 09:57 UTC: First to report: USGS after 3 minutes.

Earthquake details

Date & time	Nov 30, 2022 09:53:51 UTC -
Local time at epicenter	Wednesday, Nov 30, 2022 at 1:53 am (GMT -8)
Status	Confirmed
Magnitude	0.9
Depth	2.1 km
Epicenter latitude / longitude	38.8425°N / 122.8425°W (California, United States)
Antipode	38.843°S / 57.158°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Clear Lake (16 km / 10 mi)
Nearby towns and cities	11 km (7 mi) WNW of Cobb (pop: 1,780) \| Show on map \| Quakes nearby 23 km (14 mi) SW of Clearlake (Lake County) (pop: 15,200) \| Show on map \| Quakes nearby 33 km (20 mi) N of Windsor (Sonoma County) (pop: 27,500) \| Show on map \| Quakes nearby 46 km (29 mi) NNW of Santa Rosa (pop: 175,000) \| Show on map \| Quakes nearby 70 km (44 mi) NNW of Petaluma (pop: 60,400) \| Show on map \| Quakes nearby 78 km (48 mi) NW of Napa (pop: 80,400) \| Show on map \| Quakes nearby 92 km (57 mi) NW of Vacaville (pop: 96,800) \| Show on map \| Quakes nearby 96 km (60 mi) NW of Fairfield (pop: 113,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Few Clouds -0.4°C (31 F), humidity: 79%, wind: 1 m/s (2 kts) from NNW
Estimated seismic energy released	1.4 x 10⁶ joules (0.392 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
0.9	2.1 km	10km NW of The Geysers, CA	USGS
0.9	2.1 km	Northern California	RaspberryShake
0.9	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: 78 km / 48 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: 232 km / 144 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: 262 km / 163 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: 375 km / 233 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: Valley Oaks Golf Course (VOG/CI network) | Distance from quake: 414 km / 257 mi | Show on map | Station Info

Seismic station Valley Oaks Golf Course: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: 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 (1)

At magnitude 0.9, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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

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Danville / Very weak shaking (MMI II) / rattling, vibrating / very short

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