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Minor mag. 3.8 earthquake - 8km WSW of Westmorland, CA, USA on Thursday, 1 October 2020

Minor mag. 3.8 earthquake  - 8km WSW of Westmorland, CA, USA on Thursday, 1 October 2020
1 Oct 00:42 UTC: First to report: USGS after 1 minutes.
1 Oct 00:44: Magnitude recalculated from 4.0 to 3.8. Hypocenter depth recalculated from 8.0 to 10.4 km (from 5 to 6.5 mi). Epicenter location corrected by 2 km (1.3 mi) towards WSW.
... [show all] ...
1 Oct 18:58: Magnitude recalculated from 4.2 to 3.8. Hypocenter depth recalculated from 11.2 to 1.5 km (from 7 to 0.9 mi). Epicenter location corrected by 11.4 km (7.1 mi) towards SW.
Date & time: Thursday, 1 October 2020 00:41 UTC
Magnitude: 3.8
Depth: 1.5 km
Epicenter latitude / longitude: 33.01233°N / 115.698°W (California, United States)
Nearest volcano: Salton Buttes (14 km / 9 mi)
Nearby towns and cities:
8 km (5 mi) SW of Westmorland (pop: 2,300)
16 km (10 mi) NW of Brawley (pop: 25,900)
21 km (13 mi) SW of Calipatria (pop: 7,400)
48 km (30 mi) NW of Mexicali (pop: 597,100)
135 km (84 mi) NE of Tijuana (pop: 1,376,500)
141 km (88 mi) NE of San Diego (pop: 1,394,900)
Weather at epicenter at time of quake:
Clear Sky 40.6°C (105 F), humidity: 9%, wind: 1 m/s (2 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]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
Thu, 1 Oct 00:41 UTCM 3.8 / 1.5 km8km WSW of Westmorland, CA, USAUSGS
Thu, 1 Oct 00:41 UTCM 3.7 / 8 kmSouthern California, USAEMSC

User reports for this quake (13)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Leave a comment if you find a particular report interesting or want to add to it.
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NAF El Centro (22.3 km S of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s
NAF El Centro (22.3 km S of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s
143.5 km NW of epicenter [Map] / not felt (reported through our app)
144.5 km W of epicenter [Map] / not felt (reported through our app)
Lake havasu city (209.7 km NE of epicenter) [Map] / not felt (reported through our app)
153.5 km W of epicenter [Map] / Very weak shaking (MMI II) / 2-5 s (reported through our app)
96.4 km NW of epicenter [Map] / not felt (reported through our app)
342.4 km N of epicenter [Map] / not felt (reported through our app)
48.9 km SSE of epicenter [Map] / Weak shaking (MMI III) : It was light than the other one. (reported through our app)
15.7 km ESE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
299.9 km WNW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Mexicali / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s : I feel scared because it was strong
Imperial (United States, 24 km S of epicenter) : 6 earthquake in 20 to 30 minutes (reported through EMSC)

Earlier earthquakes in the same area since 1900

Minor mag. 3.8 earthquake - 8km WSW of Westmorland, CA, USA on Thursday, 1 October 2020

Map of earlier quakes

 

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