Light magnitude 3.2 earthquake at 2 km depth
21 Aug 22:59 UTC: First to report: USGS after 2 minutes.
22 Aug 19:36: Magnitude recalculated from 3.1 to 3.2. Hypocenter depth recalculated from 0.5 to 2.1 km (from 0.3 to 1.3 mi). Epicenter location corrected by 0.5 km (0.3 mi) towards SW.
Update Sat, 21 Aug 2021, 23:03Small magnitude 3.1 quake hits 37 miles southeast of South Lake Tahoe, California, United States early afternoon
3.1 quake 21 Aug 3:56 pm (GMT -7)
A very shallow magnitude 3.1 earthquake was reported early afternoon near South Lake Tahoe, El Dorado County, California, USA.
According to the United States Geological Survey, the quake hit on Saturday 21 August 2021 at 3:56 pm local time at a very shallow depth of 0.3 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.1 earthquake as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Coleville (pop. 500) located 2 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Topaz Ranch Estates (pop. 1,500) located 14 miles from the epicenter, and Smith Valley (pop. 1,600) 20 miles away. In Smith (pop. 1000, 21 miles away), Gardnerville Ranchos (pop. 11,300, 27 miles away), Gardnerville (pop. 5,700, 31 miles away), Gardnerville (pop. 5,700, 31 miles away), and South Lake Tahoe (pop. 21,700, 37 miles away), the quake was probably not felt.
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