Minor mag. 1.0 earthquake - 2 Km NNE of Sierraville, California, on Friday, Oct 15, 2021 2:27 am (GMT -7) -

Minor mag. 1.0 earthquake - 2 Km NNE of Sierraville, California, on Friday, Oct 15, 2021 2:27 am (GMT -7)

Minor magnitude 1.0 earthquake at 4 km depth

15 Oct 09:30 UTC: First to report: USGS after 3 minutes.
Date & time: Oct 15, 2021 09:27:31 UTC -
Local time at epicenter: Friday, Oct 15, 2021 2:27 am (GMT -7)
Magnitude: 1
Depth: 3.9 km
Epicenter latitude / longitude: 39.6109°N / 120.3553°W (California, United States)
Antipode: 39.611°S / 59.645°E
Nearest volcano: Soda Lakes (128 km / 80 mi)
Nearby towns and cities:
3 km (2 mi) NNE of Sierraville (pop: 200) --> See nearby quakes!
24 km (15 mi) SSE of Portola (pop: 1,900) --> See nearby quakes!
33 km (21 mi) WSW of Cold Springs (Nevada) (pop: 8,540) --> See nearby quakes!
35 km (22 mi) NNW of Truckee (pop: 16,300) --> See nearby quakes!
47 km (29 mi) W of Reno (Nevada) (pop: 241,400) --> See nearby quakes!
50 km (31 mi) W of Sun Valley (Washoe County, Nevada) (pop: 19,300) --> See nearby quakes!
52 km (32 mi) NW of Incline Village (Nevada) (pop: 8,780) --> See nearby quakes!
52 km (33 mi) W of Sparks (Nevada) (pop: 96,100) --> See nearby quakes!
56 km (35 mi) W of Spanish Springs (Washoe County, Nevada) (pop: 15,100) --> See nearby quakes!
75 km (46 mi) NE of Grass Valley (pop: 12,900) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 2.7°C (37 F), humidity: 54%, wind: 1 m/s (3 kts) from SE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2 x 106 joules (0.554 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
1.03.9 km2 Km NNE of Sierraville, CaliforniaUSGS

User reports for this quake (1)

At magnitude 1.0, 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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Alta Loma, Ca / Very weak shaking (MMI II) / very short : I'm really far away and if I did feel it it was almost an hour after it hit. I don't know if that's possible but my house shifted (think "house settling") very loudly at around 3:20am in Alta Loma California; this was the nearest quake at the closest time  
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