Moderate magnitude 4.2 earthquake at 6 km depth
9 Jul 00:00 UTC: First to report: USGS after 1 minute.
9 Jul 00:03: Magnitude recalculated from 4.0 to 4.5. Hypocenter depth recalculated from 8.0 to 3.3 km (from 5 to 2.1 mi). Epicenter location corrected by 4.4 km (2.7 mi) towards E.
9 Jul 01:26: Magnitude recalculated from 4.5 to 4.2.
9 Jul 07:52: Hypocenter depth recalculated from 3.3 to 5.8 km (from 2.1 to 3.6 mi).
Update Fri, 9 Jul 2021, 00:06Moderate earthquake of magnitude 4.5 just reported 37 miles southeast of South Lake Tahoe, California, United States
4.5 quake 8 Jul 4:58 pm (GMT -7)
A very shallow magnitude 4.5 earthquake was reported in the afternoon near South Lake Tahoe, El Dorado County, California, USA.
According to the United States Geological Survey, the quake hit on Thursday 8 July 2021 at 4:58 pm local time at a very shallow depth of 2.1 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.2.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Coleville (pop. 500) located 2 miles from the epicenter.
Weak shaking might have been felt in Topaz Ranch Estates (pop. 1,500) located 14 miles from the epicenter, Smith Valley (pop. 1,600) 20 miles away, Gardnerville Ranchos (pop. 11,300) 27 miles away, Gardnerville (pop. 5,700) 31 miles away, Gardnerville (pop. 5,700) 31 miles away, Johnson Lane (pop. 6,500) 37 miles away, and South Lake Tahoe (pop. 21,700) 37 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online
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