Weak mag. 2.1 earthquake - Sonoma County, 4.1 mi southwest of Calistoga (Napa County), California, USA, on Sunday, 16 August 2020 at 15:46 (GMT) -
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Weak magnitude 2.1 earthquake at 3 km depth
16 Aug 15:48 UTC: First to report: USGS after 2 minutes.
Date & time: 16 Aug 2020 15:46:05 UTC -
Depth: 2.9 km
Epicenter latitude / longitude: 38.54317°N / 122.64133°W (Sonoma County, California, United States)
Nearest volcano: Clear Lake (49 km / 30 mi)
Nearby towns and cities:
7 km (4 mi) SW of Calistoga (Napa County) (pop: 5,330) --> See nearby quakes!
13 km (8 mi) NNE of Santa Rosa (pop: 175,000) --> See nearby quakes!
15 km (9 mi) E of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
15 km (10 mi) WNW of Saint Helena (Napa County) (pop: 5,810) --> See nearby quakes!
21 km (13 mi) ESE of Healdsburg (Sonoma County) (pop: 11,700) --> See nearby quakes!
21 km (13 mi) ESE of Russian River (pop: 11,700) --> See nearby quakes!
23 km (14 mi) NNE of Rohnert Park (pop: 42,400) --> See nearby quakes!
35 km (21 mi) N of Petaluma (pop: 60,400) --> See nearby quakes!
41 km (26 mi) NW of Napa (pop: 80,400) --> See nearby quakes!
100 km (62 mi) W of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 107 joules (24.8 kilowatt hours) 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 2.1||2.9 km||7km SW of Calistoga, CA (USA)||USGS|
|M 2.1||3 km||Northern California (USA)||EMSC|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 2.1, this quake was probably too small to be felt by humans, but it could be recorded instrumentally.