Moderate mag. 4.2 earthquake - 4 mi southwest of Cobb, Lake County, California, USA, on 2019-11-03 12:34:57 -08:00

Moderate mag. 4.2 earthquake - 4 mi southwest of Cobb, Lake County, California, USA, on 2019-11-03 12:34:57 -08:00

Moderate magnitude 4.2 earthquake at 3 km depth

3 Nov 20:39 UTC: First to report: USGS after 4 minutes.
Nov 3 20:40: Magnitude recalculated from 3.9 to 4.1.
Nov 3 21:08: Magnitude recalculated from 4.1 to 4.2.
Hypocenter depth recalculated from 2.2 to 3.1 km.
Date & time: Nov 3, 2019 20:34:57 UTC
Local time at epicenter: 2019-11-03 12:34:57 -08:00
Magnitude: 4.2
Depth: 3.1 km
Epicenter latitude / longitude: 38.775°N / 122.767°W (Lake County, California, United States)
Antipode: 38.775°S / 57.233°E
Nearest volcano: Clear Lake (22 km / 14 mi)
Nearby towns and cities:
6 km (4 mi) SW of Cobb (pop: 1,780) --> See nearby quakes!
20 km (13 mi) NNE of Russian River (Sonoma County) (pop: 11,700) --> See nearby quakes!
24 km (15 mi) SSW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
26 km (16 mi) N of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
37 km (23 mi) N of Santa Rosa (pop: 175,000) --> See nearby quakes!
49 km (30 mi) N of Rohnert Park (pop: 42,400) --> See nearby quakes!
57 km (35 mi) SE of Ukiah (pop: 15,900) --> See nearby quakes!
61 km (38 mi) N of Petaluma (pop: 60,400) --> See nearby quakes!
68 km (42 mi) NW of Napa (pop: 80,400) --> See nearby quakes!
113 km (70 mi) W of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) 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.
Mag.DepthLocationSource
4.23.1 km1km WSW of The Geysers, CA (USA)USGS
4.12 kmNorthern California (USA)EMSC

User reports for this quake (12)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Denver Colorado / Moderate shaking (MMI V) : n  
Geysers, CA / Violent shaking (MMI IX)
Concord, CA (109.4 km SE of epicenter) [Map] / not felt (reported through our app)
Healdsburg Ca / Light shaking (MMI IV)
Healdsburg (United States of America, 21 km SW of epicenter) : Definitely felt it (reported through EMSC)  
Galt (United States of America, 141 km SE of epicenter) : Felt a rolling motion (reported through EMSC)  
Sacramento (United States of America, 113 km E of epicenter) : Room shook while i was watching TV (reported through EMSC)  
Sacramento (United States of America, 110 km E of epicenter) : I felt a few slight bumps while laying on my bed - thought earthquake? Noted the time, checked this site just now and yep it was what I thought it was. (reported through EMSC)  
Reno (United States of America, 269 km E of epicenter) : Felt a rumble (reported through EMSC)  
San Mateo (United States of America, 143 km S of epicenter) : didn't feel it (reported through EMSC)  
Santa Rosa (United States of America, 38 km S of epicenter) : This CANNOT be right- I could maybe see many of us sleeping through the 7AM 3.9 yesterday due to exhaustion or such after returning from wildfire evacs, but nobody even noticing a 4.1 in early afternoon on a Sunday??? When we are directly downstream of th (reported through EMSC)  
Middletown (United States of America, 14 km E of epicenter) : Could hear it coming, and it lasted for a while. (reported through EMSC)  
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