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Small magnitude 3.1 quake hits 1 miles southeast of Concord, California, United States in the afternoon

Fri, 22 Jan 2021, 01:08
01:08 AM | BY: EARTHQUAKEMONITOR
3.1 quake 21 Jan 4:48 pm (GMT -8)
3.1 quake 21 Jan 4:48 pm (GMT -8)
A shallow magnitude 3.1 earthquake was reported in the afternoon near Concord, Contra Costa County, California, USA.
According to the United States Geological Survey (USGS), the quake hit on Thursday 21 January 2021 at 4:48 pm local time at a shallow depth of 9.7 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.1 earthquake as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Concord (pop. 128,700) located 1 miles from the epicenter, Pleasant Hill (pop. 34,800) 2 miles away, Walnut Creek (pop. 68,900) 5 miles away, Bay Point (pop. 21,500) 5 miles away, Martinez (pop. 38,100) 7 miles away, Lafayette (pop. 25,800) 8 miles away, New York of the Pacific (pop. 69,400) 9 miles away, and Antioch (pop. 110,500) 12 miles away. In San Francisco (pop. 864,800, 25 miles away), and San Jose (pop. 1,026,900, 44 miles away), the quake was probably not felt.
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Earthquake data:
I felt this quake

Date & time: 21 Jan 2021 4:48 pm (GMT -8) local time (22 Jan 2021 00:48 GMT)
Magnitude: 3.1
Depth: 15.6 km
Epicenter latitude / longitude: 37.97°N / 122.03°W (Contra Costa County, California, United States)
Primary data source: USGS

Previous news

Fri, 22 Jan 2021, 00:24
Worldwide earthquakes above magnitude 3 during the past 24 hours on 22 Jan 2021
Summary: 1 quake 7.0+, 4 quakes 5.0+, 54 quakes 4.0+, 146 quakes 3.0+, 244 quakes 2.0+ (449 total)
Global seismic activity level on 21 January 2021: VERY HIGH
... read all
Thu, 21 Jan 2021, 23:59
3.1 quake 22 Jan 12:39 am (GMT +1)
An earthquake of magnitude 3.1 occurred after midnight on Friday 22 January 2021 at 12:39 am local time near Arthez-de-Béarn, Pyrénées-Atlantiques, Nouvelle-Aquitaine, France, as reported by the European-Mediterranean Seismological Centre (EMSC). ... read all
Thu, 21 Jan 2021, 23:50
World map showing volcanoes with shallow (less than 20 km) earthquakes within 20 km radius  during the past 24 hours on 21 Jan 2021 Number in brackets indicate nr of quakes.
Quakes detected near: Bardarbunga (2 quakes between mag 0.2-2.5), Brennisteinsfjöll (1 quake mag 1.0), Clear Lake (20 quakes between mag 0.3-1.9), Coso (14 quakes between mag 0.4-3.5), Irazu (1 quake mag 4.0), Kasbek (1 quake mag 3.1) ... read all
Thu, 21 Jan 2021, 23:27
4.4 quake 22 Jan 7:07 am (GMT +8)
A shallow magnitude 4.4 earthquake was reported in the morning near Dompu, Dompu Regency, West Nusa Tenggara, Indonesia. ... read all
Thu, 21 Jan 2021, 19:22
4.2 quake 22 Jan 8:02 am (GMT +13)
An earthquake of magnitude 4.2 occurred in the morning on Friday 22 January 2021 at 8:02 am local time near Wanganui, Wanganui District, Manawatu-Wanganui, New Zealand, as reported by New Zealand's Earthquake Commission and Geological Survey (GeoNet). ... read all

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