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Weak mag. 2.8 earthquake - 27 mi northwest of Coalinga, Fresno County, California, USA, on Tuesday, Aug 16, 2022 at 9:21 pm (GMT -7) -

Weak mag. 2.8 earthquake - 27 mi northwest of Coalinga, Fresno County, California, USA, on Tuesday, Aug 16, 2022 at 9:21 pm (GMT -7) Weak mag. 2.8 earthquake - 27 mi northwest of Coalinga, Fresno County, California, USA, on Tuesday, Aug 16, 2022 at 9:21 pm (GMT -7)

Weak magnitude 2.8 earthquake at 18 km depth

17 Aug 04:24 UTC: First to report: EMSC after 3 minutes.
17 Aug 04:24: Now using data updates from USGS
17 Aug 08:28: Magnitude recalculated from 3.0 to 2.8. Hypocenter depth recalculated from 16.6 to 18.3 km (from 10.3 to 11.4 mi). Epicenter location corrected by 2.3 km (1.4 mi) towards WSW.
Update Wed, 17 Aug 2022, 04:30

Magnitude 3.0 earthquake strikes near Coalinga, Fresno County, California, USA

3.0 quake 16 Aug 9:21 pm (GMT -7)
3.0 quake 16 Aug 9:21 pm (GMT -7)
Just 9 minutes ago, a 3.0-magnitude earthquake struck near Coalinga, Fresno County, California, USA. The tremor was recorded in the evening on Tuesday, August 16th, 2022, at 9:21 pm local time, at a shallow depth of 10.3 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.0 as well. A third agency, the citizen-seismograph network of RaspberryShake, reported the same quake at magnitude 3.0.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Three Rocks (pop. 250, 15 miles away), Coalinga (pop. 16,600, 27 miles away), Greenfield (pop. 17,200, 34 miles away), Soledad (pop. 25,000, 38 miles away), and Los Banos (pop. 37,500, 44 miles away), the quake was probably not felt.

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Earthquake details

Date & timeAug 17, 2022 04:21:11 UTC -
Local time at epicenterTuesday, Aug 16, 2022 at 9:21 pm (GMT -7)
Depth18.3 km
Epicenter latitude / longitude36.43217°N / 120.67383°W (San Benito, California, United States)
Antipode36.432°S / 59.326°E
Shaking intensityWeak shaking
Felt1 report
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoMammoth Mountain (198 km / 123 mi)
Nearby towns and cities26 km (16 mi) WSW of Three Rocks (pop: 246) | Show on map | Quakes nearby
43 km (27 mi) NW of Coalinga (Fresno County) (pop: 16,600) | Show on map | Quakes nearby
53 km (33 mi) ENE of Greenfield (pop: 17,200) | Show on map | Quakes nearby
58 km (36 mi) E of Soledad (pop: 25,000) | Show on map | Quakes nearby
71 km (44 mi) SSE of Los Banos (Merced County) (pop: 37,500) | Show on map | Quakes nearby
80 km (50 mi) SW of Madera (pop: 64,200) | Show on map | Quakes nearby
88 km (55 mi) WSW of Fresno (pop: 520,100) | Show on map | Quakes nearby
250 km (155 mi) SSE of Sacramento (pop: 490,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 25.8°C (78 F), humidity: 20%, wind: 3 m/s (6 kts) from SW
Estimated seismic energy released1 x 109 joules (278 kilowatt hours, equivalent to 0.239 tons of TNT) | about seismic energy
Show interactive Map
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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.
2.818 km2km N of New Idria, CAUSGS
2.818 kmCentral CaliforniaRaspberryShake


Seismic station: San Andreas Geophysical Obs., Hollister, CA, USA (SAO/BK network) | Distance from quake: 78 km / 49 mi | Show on map | Station Info
Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (1)

At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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West Covina (360.9 km SE of epicenter) [Map] / Weak shaking (MMI III) : felt like the floor was moving  

Earlier earthquakes in the same area

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