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Minor mag. 1.6 earthquake - 2km WSW of Redwood Valley, CA, on Wednesday, Dec 7, 2022 at 6:03 pm (GMT -8) -

Minor magnitude 1.6 earthquake at 3 km depth

8 Dec 02:05 UTC: First to report: USGS after 2 minutes.

Earthquake details

Date & time	Dec 8, 2022 02:03:16 UTC -
Local time at epicenter	Wednesday, Dec 7, 2022 at 6:03 pm (GMT -8)
Status	Confirmed
Magnitude	1.6
Depth	3.4 km
Epicenter latitude / longitude	39.25367°N / 123.22717°W (California, United States)
Antipode	39.254°S / 56.773°E
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Clear Lake (51 km / 32 mi)
Nearby towns and cities	2 km (1 mi) SW of Redwood Valley (pop: 1,730) \| Show on map \| Quakes nearby 12 km (7 mi) N of Ukiah (pop: 15,900) \| Show on map \| Quakes nearby 21 km (13 mi) SSE of Little Lake (pop: 4,860) \| Show on map \| Quakes nearby 36 km (22 mi) NW of Lakeport (pop: 4,810) \| Show on map \| Quakes nearby 36 km (22 mi) WNW of Nice (pop: 2,730) \| Show on map \| Quakes nearby 61 km (38 mi) WNW of Clearlake (Lake County) (pop: 15,200) \| Show on map \| Quakes nearby 86 km (54 mi) NNW of Windsor (Sonoma County) (pop: 27,500) \| Show on map \| Quakes nearby 101 km (63 mi) NNW of Santa Rosa (pop: 175,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Broken Clouds 6.7°C (44 F), humidity: 84%, wind: 0 m/s (0 kts)
Estimated seismic energy released	1.6 x 10⁷ joules (4.4 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
1.6	3.4 km	2km WSW of Redwood Valley, CA	USGS
1.6	3.4 km	Near Coast of N. California	RaspberryShake
1.6	10 km	Near Coast Of Northern Calif.	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: 127 km / 79 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: 281 km / 175 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: 318 km / 197 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: Crater Lake Bunk House (CLBH/CC network) | Distance from quake: 416 km / 259 mi | Show on map | Station Info

Seismic station Crater Lake Bunk House: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake Bunk House: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake Bunk House: 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: 469 km / 292 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

At magnitude 1.6, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

Earlier earthquakes in the same area

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