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Weak mag. 2.1 earthquake - 17 mi northeast of Santa Rosa, Sonoma County, California, USA, on Wednesday, Nov 30, 2022 at 1:36 am (GMT -8) -

Weak mag. 2.1 earthquake - 17 mi northeast of Santa Rosa, Sonoma County, California, USA, on Wednesday, Nov 30, 2022 at 1:36 am (GMT -8) Weak mag. 2.1 earthquake - 17 mi northeast of Santa Rosa, Sonoma County, California, USA, on Wednesday, Nov 30, 2022 at 1:36 am (GMT -8)

Weak magnitude 2.1 earthquake at 7 km depth

30 Nov 09:40 UTC: First to report: USGS after 3 minutes.
30 Nov 10:34: Magnitude recalculated from 2.2 to 2.1. Hypocenter depth recalculated from 0.0 to 7.4 km (from 0 to 4.6 mi). Epicenter location corrected by 3.1 km (1.9 mi) towards ENE.

Earthquake details

Date & timeNov 30, 2022 09:36:49 UTC -
Local time at epicenterWednesday, Nov 30, 2022 at 1:36 am (GMT -8)
Depth7.4 km
Epicenter latitude / longitude38.56317°N / 122.444°W (Napa, California, United States)
Antipode38.563°S / 57.556°E
Shaking intensityVery weak shaking
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoClear Lake (53 km / 33 mi)
Nearby towns and cities4 km (3 mi) NNE of Deer Park (pop: 1,270) | Show on map | Quakes nearby
12 km (7 mi) E of Calistoga (Napa County) (pop: 5,330) | Show on map | Quakes nearby
27 km (17 mi) ENE of Santa Rosa (pop: 175,000) | Show on map | Quakes nearby
32 km (20 mi) E of Windsor (Sonoma County) (pop: 27,500) | Show on map | Quakes nearby
33 km (20 mi) NNW of Napa (pop: 80,400) | Show on map | Quakes nearby
33 km (21 mi) NE of Rohnert Park (pop: 42,400) | Show on map | Quakes nearby
40 km (25 mi) NNE of Petaluma (pop: 60,400) | Show on map | Quakes nearby
54 km (33 mi) NNW of Vallejo (pop: 121,300) | Show on map | Quakes nearby
Weather at epicenter at time of quakeScattered Clouds 2.2°C (36 F), humidity: 67%, wind: 1 m/s (1 kts) from NW
Estimated seismic energy released8.9 x 107 joules (24.8 kilowatt hours) | about seismic energy
Show interactive Map
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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.
2.17.4 km4km SW of Angwin, CAUSGS
2.17.4 kmNorthern CaliforniaRaspberryShake
2.110 kmNorthern CaliforniaIRIS


Seismic station: Marconi Conference Center, Marshall, CA, USA (MCCM/BK network) | Distance from quake: 60 km / 37 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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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.

Earlier earthquakes in the same area

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