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Light mag. 3.0 earthquake - 36 mi southeast of South Lake Tahoe, El Dorado County, California, USA, on Thursday, Jul 8, 2021 at 3:58 pm (GMT -7)

Light mag. 3.0 earthquake - 36 mi southeast of South Lake Tahoe, El Dorado County, California, USA, on Thursday, Jul 8, 2021 at 3:58 pm (GMT -7) Light mag. 3.0 earthquake - 36 mi southeast of South Lake Tahoe, El Dorado County, California, USA, on Thursday, Jul 8, 2021 at 3:58 pm (GMT -7)

Light magnitude 3.0 earthquake at 7 km depth

8 Jul 23:03 UTC: First to report: EMSC after 5 minutes.
8 Jul 23:03: Now using data updates from USGS
8 Jul 23:09: Magnitude recalculated from 3.1 to 3.0. Hypocenter depth recalculated from 3.7 to 7.1 km (from 2.3 to 4.4 mi). Epicenter location corrected by 3.1 km (1.9 mi) towards WSW.
Update Thu, 8 Jul 2021, 23:27

Small magnitude 3.0 earthquake 36 miles southeast of South Lake Tahoe, California, United States

3.0 quake 8 Jul 3:58 pm (GMT -7)
3.0 quake 8 Jul 3:58 pm (GMT -7)
A magnitude 3.0 earthquake near South Lake Tahoe, El Dorado County, California, USA, was reported only 28 minutes ago by the United States Geological Survey, considered the key international and national agency that monitors seismic activity in the US. The earthquake occurred at a very shallow depth of 4.4 miles beneath the epicenter early afternoon on Thursday 8 July 2021 at 3:58 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 4.2.
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 13 miles from the epicenter. In Smith Valley (pop. 1,600, 20 miles away), Smith (pop. 1000, 21 miles away), Gardnerville Ranchos (pop. 11,300, 26 miles away), Gardnerville (pop. 5,700, 30 miles away), Gardnerville (pop. 5,700, 30 miles away), and South Lake Tahoe (pop. 21,700, 36 miles away), the quake was probably not felt.

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Earthquake details

Date & timeJul 8, 2021 22:58:53 UTC
Local time at epicenterThursday, Jul 8, 2021 at 3:58 pm (GMT -7)
StatusConfirmed
Magnitude3
Depth7.1 km
Epicenter latitude / longitude38.5432°N / 119.5403°W (Mono, California, United States)
Antipode38.543°S / 60.46°E
Shaking intensityWeak shaking
Felt127 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoMono Lake (75 km / 47 mi)
Nearby towns and cities4 km (2 mi) SW of Coleville (pop: 495) | Show on map | Quakes nearby
22 km (13 mi) S of Topaz Ranch Estates (Nevada) (pop: 1,500) | Show on map | Quakes nearby
32 km (20 mi) SSW of Smith Valley (Nevada) (pop: 1,600) | Show on map | Quakes nearby
42 km (26 mi) SSE of Gardnerville Ranchos (Nevada) (pop: 11,300) | Show on map | Quakes nearby
58 km (36 mi) SE of South Lake Tahoe (El Dorado County) (pop: 21,700) | Show on map | Quakes nearby
58 km (36 mi) SSE of Johnson Lane (Douglas County, Nevada) (pop: 6,490) | 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
78 km (48 mi) ENE of Arnold (pop: 3,840) | Show on map | Quakes nearby
170 km (106 mi) E of Sacramento (pop: 490,700) | Show on map | Quakes nearby
Estimated seismic energy released2 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.DepthLocationSource
4.36.7 km32km SE of Markleeville, CAUSGS
4.24 kmCENTRAL CALIFORNIAEMSC

User reports for this quake (130)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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62.2 km NNE of epicenter [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 5-10 s : I felt like some one was pushing or kicking hard on the back of the chair I was setting in. The house creaked and swayed. | 2 users found this interesting.  
153.4 km WNW of epicenter [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s : Felt like rough washing machine, nic-nak shelves rattling and loose cupboard door swaying back and forth (reported through our app)  
Carson city (71.9 km NNW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s : It felt like my apt was swinging back and forth. Blinds were swinging and light fixture was swinging.  
Placerville / Light shaking (MMI IV) / 1-2 minutes : 3:54 the chair I was sitting in shook, then the roof shook I got up to see if there was a big truck coming down the driveway  
Roseville California / Moderate shaking (MMI V) / both vertical and horizontal swinging / 5-10 s : Had my 280 lb self rocking back and forth pretty good and my boat was slamming back and fourth I thought   
Gardnerville / Light shaking (MMI IV) / complex rolling (tilting in multiple directions) / 5-10 s : It felt like a light shaking, and then a rolling. It made me go off balance (I was standing in my kitchen), so I held on to the sink. It knocked down a few of my soup cans off the shelf.  
Sacramento, Ca. / Weak shaking (MMI III) / vibration and rolling / 5-10 s : Felt like someone was moving my bed, like they were under the bed. I knew what it was and I’m wondering why their have been so many lately. Scary! Is there something we need to know as citizens?  
Reno, Nevada, 89523 / Very weak shaking (MMI II) / 2-5 s : I was sitting on the couch, and it felt like someone was pushing the couch just to rock it back and forth.  
South Lake Tahoe / Moderate shaking (MMI V) / complex rolling (tilting in multiple directions) / 20-30 s : The couch I was on felt like a boat in rough waters and the LARGE tree trunk outside my window was moving noticably by inches from my perspective  
Fair oaks ca / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) : This wasn’t first time feeling anything of the nature of an earthquake I was sitting on my bed n my bed started shaking n my fiancé was sitting in his chair n his chair started shaking n I looked up at him cuz I thought he was messing wit  
Sacramento, CA / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Chair shook like someone had grabbed the legs and yanked on it. Pictures on bookshelf fell down. Cat jumped up from a sound sleep and began bouncing off the walls.  
95843 / Very weak shaking (MMI II) / 30-60 s : Live on second floor. mild movement, like how you feel in bed at night after a boat ride or plane ride.  
Stockton (163.1 km WSW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s : I felt it at a stop sign. Made my car wiggle  
carson city nv (70.9 km NNW of epicenter) [Map] / Weak shaking (MMI III) / 5-10 s
Rancho Cordova (147 km W of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s : Heard house creeking. Felt chair moving. Saw chandelier swaying 3 inches on each side.  
Sparks (119.6 km N of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging
152 km WNW of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s : I was resting and felt some light movement that kept going and growing in intensity.  
98.3 km WNW of epicenter [Map] / Moderate shaking (MMI V) / rattling, vibrating / 1-2 minutes
Rancho Cordova, CA 95670 (152.9 km W of epicenter) [Map] / Moderate shaking (MMI V) : 2 in succession  
61.9 km N of epicenter [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s
111.5 km NNW of epicenter [Map] / Very weak shaking (MMI II) / vibration and rolling / 15-20 s
97.8 km NNW of epicenter [Map] / not felt
Reno Nevada (111.4 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s : Felt my bed and my apartment building moving  
171.2 km W of epicenter [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s : I felt shaking and one big jerk and shaking agen few more times  
164.2 km WSW of epicenter [Map] / Light shaking (MMI IV) / 5-10 s : It felt like someone was shaking the couch I was on  
STAGECOACH (92.8 km N of epicenter) [Map] / Moderate shaking (MMI V) : Rolling quake with intermittent jolts hear rumbling lasted 35 sec to 1 minute.  
Placerville (100.6 km W of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s
Roseville, Placer, California (153.3 km W of epicenter) [Map] / not felt (reported through our app)
Northstar, California (96.3 km NNW of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 5-10 s : more like rolling with vibration like a phone  
Incline village (327.2 km SW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Merced,ca (157.2 km SSW of epicenter) [Map] / Very weak shaking (MMI II) / 5-10 s : Pool water, fish tank, chairs and TV's shaking (reported through our app)  
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