Light mag. 2.9 earthquake - 4.6 mi southwest of Napa, California, USA, on Friday, 21 August 2020 at 00:05 (GMT) -
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Light magnitude 2.9 earthquake at 0 km depth
21 Aug 00:08 UTC: First to report: USGS after 2 minutes.
Date & time: 21 Aug 2020 00:05:49 UTC -
Depth: 0.3 km
Epicenter latitude / longitude: 38.2445°N / 122.338°W (Napa County, California, United States)
Nearest volcano: Clear Lake (89 km / 55 mi)
Nearby towns and cities:
7 km (5 mi) SW of Napa (pop: 80,400) --> See nearby quakes!
10 km (6 mi) NW of American Canyon (pop: 20,600) --> See nearby quakes!
17 km (11 mi) NNW of Vallejo (pop: 121,300) --> See nearby quakes!
25 km (16 mi) NE of Novato (pop: 55,500) --> See nearby quakes!
26 km (16 mi) W of Fairfield (pop: 113,000) --> See nearby quakes!
26 km (16 mi) E of Petaluma (pop: 60,400) --> See nearby quakes!
33 km (21 mi) WSW of Vacaville (pop: 96,800) --> See nearby quakes!
34 km (21 mi) N of Richmond (pop: 109,700) --> See nearby quakes!
53 km (33 mi) N of San Francisco (pop: 864,800) --> See nearby quakes!
83 km (51 mi) WSW of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 109 joules (392 kilowatt hours, equivalent to 0.338 tons of TNT) More info
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 2.9||0.3 km||7km SW of Napa, CA (USA)||USGS|
|M 2.9||km||Northern California (USA)||EMSC|
User reports for this quake (2)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 2.9, this quake might have been felt very close to the epicenter and under calm conditions.