Light mag. 3.3 earthquake - 3.1 mi west of Cobb, Lake County, California, USA, on 2019-10-28 00:10:43 -08:00 -
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Light magnitude 3.3 earthquake at 1 km depth
28 Oct 08:14 UTC: First to report: USGS after 4 minutes.
Date & time: 28 Oct 2019 08:10:43 UTC -
Local time at epicenter: 2019-10-28 00:10:43 -08:00
Magnitude: 3.3
Depth: 1.1 km
Epicenter latitude / longitude: 38.80583°N / 122.77666°W

Nearest volcano: Clear Lake (18 km / 11 mi)
Nearby towns and cities:
5 km (3 mi) WSW of Cobb (pop: 1,780) --> See nearby quakes!
21 km (13 mi) SW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
23 km (14 mi) NNE of Healdsburg (Sonoma County) (pop: 11,700) --> See nearby quakes!
29 km (18 mi) N of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
41 km (25 mi) N of Santa Rosa (pop: 175,000) --> See nearby quakes!
52 km (32 mi) N of Rohnert Park (pop: 42,400) --> See nearby quakes!
65 km (40 mi) N of Petaluma (pop: 60,400) --> See nearby quakes!
71 km (44 mi) NW of Napa (pop: 80,400) --> See nearby quakes!
114 km (71 mi) WNW of Sacramento (pop: 490,700) --> See nearby quakes!
119 km (74 mi) NNW of San Francisco (pop: 864,800) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5.6 x 109 joules (1.56 megawatt hours, equivalent to 1.34 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.
Magnitude | Depth | Location | Source |
M 3.3 | 1 km | Northern California (USA) | EMSC |
M 3.3 | 1.1 km | 4km NNW of The Geysers, CA (USA) | USGS |
User reports for this quake (1)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.