Mag. 3.8 earthquake - 5km E of Westmorland, CA, USA, on Thursday, 1 October 2020 at 00:33 (GMT) -

Mag. 3.8 earthquake  - 5km E of Westmorland, CA, USA, on Thursday, 1 October 2020 at 00:33 (GMT)

Minor magnitude 3.8 earthquake at 3 km depth

1 Oct 00:36 UTC: First to report: USGS after 2 minutes.
1 Oct 18:02: Magnitude recalculated from 3.7 to 3.9. Hypocenter depth recalculated from 8.2 to 5.9 km (from 5.1 to 3.7 mi). Epicenter location corrected by 1.9 km (1.2 mi) towards WNW.
1 Oct 18:46: Magnitude recalculated from 3.9 to 3.8. Hypocenter depth recalculated from 5.9 to 3.0 km (from 3.7 to 1.9 mi). Epicenter location corrected by 11.2 km (6.9 mi) towards WSW.
Date & time: 1 Oct 2020 12:33:59 UTC -
Magnitude: 3.8
Depth: 3.0 km
Epicenter latitude / longitude: 33.0165°N / 115.704°W (California, United States)
Nearest volcano: Salton Buttes (19 km / 12 mi)
Nearby towns and cities:
8 km (5 mi) WSW of Westmorland (Imperial County) (pop: 2,270)
17 km (10 mi) WNW of Brawley (Imperial County) (pop: 25,900)
21 km (13 mi) SW of Calipatria (Imperial County) (pop: 7,420)
25 km (15 mi) N of Seeley (Imperial County) (pop: 1,740)
28 km (18 mi) NNW of El Centro (Imperial County) (pop: 44,000)
42 km (26 mi) NNW of Calexico (Imperial County) (pop: 40,100)
134 km (83 mi) ENE of Tijuana (Baja California, Mexico) (pop: 1,301,000)
810 km (503 mi) SE of Sacramento (pop: 490,700)
Weather at epicenter at time of quake:
Clear Sky 41°C (106 F), humidity: 9%, wind: 2 m/s (3 kts) from N
Primary data source: USGS
Estimated released energy: 3.2 x 1010 joules (8.78 megawatt hours, equivalent to 7.56 tons of TNT) [learn more]
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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.
MagnitudeDepthLocationSource
M 3.83 km5km E of Westmorland, CA, USAUSGS
M 3.810 kmSouthern California, USAEMSC

User reports for this quake (11)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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72.8 km SW of epicenter [Map] / not felt (reported through our app)
Carlsbad (United States, 164 km W of epicenter) : Pretty good jerking back-and-forth felt like it came from the east east to west Movement (reported through EMSC)
Lake San Marcos (United States, 151 km W of epicenter) : Slight short shake. (reported through EMSC)
Sorrento Valley (United States, 150 km W of epicenter) : It was a light shake in San Diego (sorrento valley) for about 3 seconds. I saw my lightweight house plant shake a bit. (reported through EMSC)
Sorrento Valley (United States, 150 km W of epicenter) (reported through EMSC)
Tijuana (Mexico, 144 km SW of epicenter) : Muy leve en tijuana (reported through EMSC)
La Paz Valley (United States, 140 km NE of epicenter) : Light shaking nothing dramatic. (reported through EMSC)
Fortuna Foothills (United States, 119 km E of epicenter) : A soft but unmistakable jolt, then a rocking roll for about 5 seconds. Nothing fell, just swung. I'm in Yuma AZ (reported through EMSC)
Somerton (United States, 96 km SE of epicenter) : Felt in Somerton, Arizona significant movement (reported through EMSC)
Calexico (United States, 40 km S of epicenter) : It was shaking pretty good (reported through EMSC)
Brawley (United States, 9 km SE of epicenter) : Big long shake. (reported through EMSC)
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Mag. 3.8 earthquake - 5km E of Westmorland, CA, USA, on Thursday, 1 October 2020 at 00:33 (GMT)

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