Mag. 2.3 earthquake - Lake, 4.5 mi west of Middletown, California, USA, on 28 Oct 1:58 am (GMT -7) -
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Minor magnitude 2.3 earthquake at 1 km depth
28 Oct 09:01 UTC: First to report: USGS after 3 minutes.
Local time at epicenter: 28 Oct 1:58 am (GMT -7)
Magnitude: 2.3
Depth: 0.9 km
Epicenter latitude / longitude: 38.7455°N / 122.69833°W
(Lake, California, United States)Nearest volcano: Clear Lake (26 km / 16 mi)
Nearby towns and cities:
7 km (5 mi) W of Middletown (pop: 1,320) --> See nearby quakes!
9 km (5 mi) SSE of Cobb (pop: 1,780) --> See nearby quakes!
21 km (13 mi) NE of Healdsburg (Sonoma County) (pop: 11,700) --> See nearby quakes!
21 km (13 mi) NNW of Calistoga (Napa County) (pop: 5,330) --> See nearby quakes!
24 km (15 mi) NNE of Windsor (Sonoma County) (pop: 27,500) --> See nearby quakes!
24 km (15 mi) SSW of Clearlake (Lake County) (pop: 15,200) --> See nearby quakes!
34 km (21 mi) N of Santa Rosa (pop: 175,000) --> See nearby quakes!
45 km (28 mi) N of Rohnert Park (pop: 42,400) --> See nearby quakes!
3914 km (2432 mi) WNW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
3914 km (2432 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
10.4°C (51 F), humidity: 50%, wind: 1 m/s (3 kts) from NE
Primary data source: USGS (United States Geological Survey)
Clear Sky
10.4°C (51 F), humidity: 50%, wind: 1 m/s (3 kts) from NEEstimated released energy: 1.8 x 108 joules (49.4 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.
| Magnitude | Depth | Location | Source |
| M 2.3 | 0.9 km | 3km S of Anderson Springs, CA, USA | USGS |
User reports for this quake (3)
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.
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Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Lakeport, CA / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Was laying in bed, shaking and rattling and cats ran into bedroom. i rolled onto the floor to hide. i was in fear and my wife tracked me down and told me to knock it off! She was also uttering something about staying awake all night. | One user found this interesting.
342.7 km SE of epicenter [Map] / Very weak shaking (MMI II) / vibration and rolling
Redwood cityRedwood, ca / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Felt on couch, first floor indoors | 3 users found this interesting.
Earlier earthquakes in the same area
Mag. 2.3 earthquake - Lake, 4.5 mi west of Middletown, California, USA, on 28 Oct 1:58 am (GMT -7)Click here to search our database for earlier earthquakes in the same area since 1900!
