Mag. 2.3 earthquake - Napa County, 8.6 mi east of Angwin, California, USA, on 28 Oct 12:45 pm (GMT -7) -

Mag. 2.3 earthquake  - Napa County, 8.6 mi east of Angwin, California, USA, on 28 Oct 12:45 pm (GMT -7)

Minor magnitude 2.3 earthquake at 1 km depth

28 Oct 19:47 UTC: First to report: USGS after 2 minutes.
Date & time: 28 Oct 2020 19:45:37 UTC -
Local time at epicenter: 28 Oct 12:45 pm (GMT -7)
Magnitude: 2.3
Depth: 0.9 km
Epicenter latitude / longitude: 38.5515°N / 122.29467°W (Napa County, California, United States)
Nearest volcano: Clear Lake (62 km / 39 mi)
Nearby towns and cities:
14 km (9 mi) E of Angwin (pop: 3,050) --> See nearby quakes!
25 km (16 mi) E of Calistoga (Napa County) (pop: 5,330) --> See nearby quakes!
28 km (18 mi) N of Napa (pop: 80,400) --> See nearby quakes!
34 km (21 mi) NW of Vacaville (pop: 96,800) --> See nearby quakes!
39 km (24 mi) ENE of Santa Rosa (pop: 175,000) --> See nearby quakes!
40 km (25 mi) NW of Fairfield (pop: 113,000) --> See nearby quakes!
43 km (26 mi) NE of Rohnert Park (pop: 42,400) --> See nearby quakes!
50 km (31 mi) N of Vallejo (pop: 121,300) --> See nearby quakes!
3886 km (2415 mi) WNW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
3886 km (2415 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 24.5°C (76 F), humidity: 38%, wind: 0 m/s (1 kts) from SE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 108 joules (49.4 kilowatt hours) More info
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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.
M 2.30.9 km14km E of Angwin, CA, USAUSGS
M 2.31 kmNorthern California, USAEMSC

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
At magnitude 2.3, this quake was probably too small to be felt by humans, but it could be recorded instrumentally.
Leave a comment if you find a particular report interesting or want to add to it.
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Send your own user report!
Lakeport, CA / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : What a scare! This time my cats ran into the bedroom and three or four seconds later there was a shaking like a semi-truck was on the roof! i rolled onto the floor and covered the back of my head. I was praying and whimpering maybe crying just, just a little. my wife was fast to get to me and she reached down and grabbed me by filling both nose holes with her ring and pinky fingers jammed in and pulled me up to my knees and slapped me (she slaps hard!!) She told me "you know what that was for" a | One user found this interesting.
Davis CA (49.1 km E of epicenter) [Map] / Very weak shaking (MMI II)
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Earlier earthquakes in the same area

Mag. 2.3 earthquake - Napa County, 8.6 mi east of Angwin, California, USA, on 28 Oct 12:45 pm (GMT -7)
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