Minor mag. 0.4 earthquake - 3km SSW of Anderson Springs, CA, USA on Thursday, 17 September 2020
17 Sep 20:00 UTC: Premier à signaler: USGS après 10 heures.
Depth: 2.4 km
Epicenter latitude / longitude: 38.75283°N / 122.71067°W (États-Unis)
Nearest volcano: Clear Lake (25 km / 16 mi)
Nearby towns and cities:
8 km S de Cobb (pop: 1,800)
8 km W de Middletown (pop: 1,300)
15 km SW de Hidden Valley Lake (pop: 5,600)
107 km W de Sacramento (pop: 490,700)
112 km NW de San Francisco (pop: 864,800)
173 km NW de San Jose (pop: 1,026,900)
Primary data source: USGS
Estimated released energy: 2.5 x 105 joules (0.07 kilowatt hours) [learn more]
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.
|Heure||Mag. / Depth||Location||Source|
|Thu, 17 Sep 10:03 UTC||M 0.4 / 2.4 km||3km SSW of Anderson Springs, CA, USA||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 0.4, this quake was too small to be felt by humans, but it was recorded instrumentally.