Minor mag. 0.5 earthquake - 9km N of Borrego Springs, CA, on Tuesday, Sep 21, 2021 10:26 pm (GMT -7) -

Minor mag. 0.5 earthquake - 9km N of Borrego Springs, CA, on Tuesday, Sep 21, 2021 10:26 pm (GMT -7)

Minor magnitude 0.5 earthquake at 9 km depth

22 Sep 05:29 UTC: First to report: USGS after 3 minutes.
22 Sep 05:30: Magnitude recalculated from 1.2 to 0.5. Hypocenter depth recalculated from 8.9 to 9.0 km (from 5.5 to 5.6 mi).
Date & time: Sep 22, 2021 05:26:30 UTC -
Local time at epicenter: Tuesday, Sep 21, 2021 10:26 pm (GMT -7)
Magnitude: 0.5
Depth: 9.0 km
Epicenter latitude / longitude: 33.33983°N / 116.36117°W (California, United States)
Antipode: 33.34°S / 63.639°E
Nearest volcano: Salton Buttes (71 km / 44 mi)
Nearby towns and cities:
9 km (6 mi) N of Borrego Springs (pop: 3,430) --> See nearby quakes!
36 km (23 mi) S of La Quinta (pop: 40,500) --> See nearby quakes!
42 km (26 mi) SSW of Coachella (pop: 44,600) --> See nearby quakes!
43 km (26 mi) S of Palm Desert (pop: 51,900) --> See nearby quakes!
44 km (28 mi) SSW of Indio (pop: 87,500) --> See nearby quakes!
50 km (31 mi) SSE of Cathedral City (pop: 53,800) --> See nearby quakes!
72 km (45 mi) ENE of Escondido (pop: 151,500) --> See nearby quakes!
75 km (47 mi) ESE of Temecula (pop: 112,000) --> See nearby quakes!
102 km (63 mi) NE of San Diego (pop: 1,394,900) --> See nearby quakes!
118 km (73 mi) SE of Riverside (pop: 322,400) --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds 27.1°C (81 F), humidity: 19%, wind: 0 m/s (1 kts) from WNW
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 105 joules (0.099 kilowatt hours) 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
0.59 km9km N of Borrego Springs, CAUSGS

User reports for this quake (1)

At magnitude 0.5, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Foxglove Vw. Carlsbad ca / Light shaking (MMI IV) / vertical swinging (up and down) / 1-2 s : I was drifting off and it felt like and sounds like a big truck driving up the street. It was very mild but a little bit shocking  
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