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Light mag. 3.0 earthquake - 37 mi southeast of South Lake Tahoe, El Dorado County, California, USA, on Thursday, Jul 8, 2021 at 4:25 pm (GMT -7)

This quake was likely an aftershock of the 5.2 quake 38 mi southeast of South Lake Tahoe, El Dorado County, California, USA, July 8, 2021 22:50 GMT, which had occurred 35 minutes earlier.

Light mag. 3.0 earthquake - 37 mi southeast of South Lake Tahoe, El Dorado County, California, USA, on Thursday, Jul 8, 2021 at 4:25 pm (GMT -7)

Light magnitude 3.0 earthquake at 6 km depth

8 Jul 23:28 UTC: First to report: EMSC after 3 minutes.
8 Jul 23:28: Now using data updates from USGS
9 Jul 21:38: Hypocenter depth recalculated from 1.6 to 5.5 km (from 1 to 3.4 mi). Epicenter location corrected by 1.5 km (0.9 mi) towards NNE.

Update Thu, 8 Jul 2021, 23:33

Small 3.0 quake hits near South Lake Tahoe, El Dorado County, California, USA

3.0 quake 8 Jul 4:25 pm (GMT -7)

Just 8 minutes ago, a 3.0-magnitude earthquake struck near South Lake Tahoe, El Dorado County, California, USA. The tremor was recorded in the afternoon on Thursday 8 July 2021 at 4:25 pm local time, at a very shallow depth of 1 mile below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.0 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 3 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. In Smith Valley (pop. 1,600, 20 miles away), 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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Earthquake details

Date & time	Jul 8, 2021 23:25:14 UTC
Local time at epicenter	Thursday, Jul 8, 2021 at 4:25 pm (GMT -7)
Status	Confirmed
Magnitude	3
Depth	5.5 km
Epicenter latitude / longitude	38.54367°N / 119.51783°W (Mono, California, United States)
Antipode	38.544°S / 60.482°E
Shaking intensity	Weak shaking
Felt	2 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Mono Lake (73 km / 45 mi)
Nearby towns and cities	3 km (2 mi) SSW of Coleville (pop: 495) \| Show on map \| Quakes nearby 21 km (13 mi) S of Topaz Ranch Estates (Nevada) (pop: 1,500) \| Show on map \| Quakes nearby 31 km (19 mi) SSW of Smith Valley (Nevada) (pop: 1,600) \| Show on map \| Quakes nearby 43 km (27 mi) SSE of Gardnerville Ranchos (Nevada) (pop: 11,300) \| Show on map \| Quakes nearby 58 km (36 mi) SSW of Yerington (Nevada) (pop: 3,060) \| Show on map \| Quakes nearby 59 km (37 mi) SSE of Johnson Lane (Douglas County, Nevada) (pop: 6,490) \| Show on map \| Quakes nearby 59 km (37 mi) SE of South Lake Tahoe (El Dorado County) (pop: 21,700) \| Show on map \| Quakes nearby 72 km (45 mi) SSE of Carson City (Nevada) (pop: 54,500) \| Show on map \| Quakes nearby 77 km (48 mi) S of Dayton (Lyon County, Nevada) (pop: 8,960) \| Show on map \| Quakes nearby 172 km (107 mi) E of Sacramento (pop: 490,700) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	2 x 10⁹ joules (554 kilowatt hours, equivalent to 0.477 tons of TNT) \| about seismic energy

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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.	Depth	Location	Source
2.4	3.3 km	30km ENE of Dardanelle, CA	USGS
2.7	9 km	CENTRAL CALIFORNIA	EMSC

Most recent quakes Top 20 past 24 hrs Quakes in the US California

Seismograms

Seismic station: Mammoth (MLAC/CI network) | Distance from quake: 118 km / 73 mi | Show on map | Station Info

Seismic station Mammoth: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Mammoth: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Mammoth: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Tinemaha (TIN/CI network) | Distance from quake: 201 km / 125 mi | Show on map | Station Info

Seismic station Tinemaha: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Tinemaha: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Tinemaha: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Valley Oaks Golf Course (VOG/CI network) | Distance from quake: 247 km / 154 mi | Show on map | Station Info

Seismic station Valley Oaks Golf Course: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Isabella (ISA/CI network) | Distance from quake: 333 km / 207 mi | Show on map | Station Info

Seismic station Isabella: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Isabella: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Isabella: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Barstow Service Center (RRX/CI network) | Distance from quake: 466 km / 289 mi | Show on map | Station Info

Seismic station Barstow Service Center: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Barstow Service Center: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Barstow Service Center: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Translate

Visalia, CA (250.9 km S of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : Slight light hesdedness and a slight movement of my shopping cart. (reported through our app)

Sleeping / Light shaking (MMI IV) / rattling, vibrating / 10-15 s : It was a good shake

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