Moderate magnitude 3.9 earthquake at 5 km depth
9 Jul 00:09 UTC: First to report: EMSC after 4 minutes.
9 Jul 00:09: Now using data updates from USGS
9 Jul 09:02: Magnitude recalculated from 4.0 to 3.9. Hypocenter depth recalculated from 5.5 to 4.8 km (from 3.4 to 3 mi).
Update Fri, 9 Jul 2021, 00:15Magnitude 4.0 earthquake strikes near South Lake Tahoe, El Dorado County, California, USA
4.0 quake 8 Jul 5:05 pm (GMT -7)
An earthquake of magnitude 4.0 occurred only 10 minutes ago 43 miles southeast of South Lake Tahoe, California, United States, the United States Geological Survey reported.
The quake hit at a very shallow depth of 3.4 miles beneath the epicenter near South Lake Tahoe, El Dorado County, California, USA, in the afternoon on Thursday 8 July 2021 at 5:05 pm local time. 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.0 as well.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Walker (pop. 720) located 4 miles from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Topaz Ranch Estates (pop. 1,500) located 19 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Smith Valley (pop. 1,600) located 24 miles from the epicenter, Gardnerville Ranchos (pop. 11,300) 33 miles away, Gardnerville (pop. 5,700) 37 miles away, Gardnerville (pop. 5,700) 37 miles away, South Lake Tahoe (pop. 21,700) 43 miles away, and Carson City (pop. 54,500) 52 miles away.
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