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Minor mag. 1.6 earthquake - 4km N of Lafayette, CA, on Friday, Jan 21, 2022 at 3:37 pm (GMT -8) -

Minor mag. 1.6 earthquake - 4km N of Lafayette, CA, on Friday, Jan 21, 2022 at 3:37 pm (GMT -8) Minor mag. 1.6 earthquake - 4km N of Lafayette, CA, on Friday, Jan 21, 2022 at 3:37 pm (GMT -8)

Minor magnitude 1.6 earthquake at 4 km depth

21 Jan 23:40 UTC: First to report: USGS after 2 minutes.

Earthquake details

Date & timeJan 21, 2022 23:37:54 UTC -
Local time at epicenterFriday, Jan 21, 2022 at 3:37 pm (GMT -8)
StatusConfirmed
Magnitude1.6
Depth4.4 km
Epicenter latitude / longitude37.92117°N / 122.12317°W (California, United States)
Antipode37.921°S / 57.877°E
Shaking intensityVery weak shaking
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoClear Lake (130 km / 81 mi)
Nearby towns and cities4 km (2 mi) N of Lafayette (Contra Costa County) (pop: 25,800) | Show on map | Quakes nearby
5 km (3 mi) WNW of Walnut Creek (pop: 68,900) | Show on map | Quakes nearby
6 km (4 mi) WSW of Pleasant Hill (pop: 34,800) | Show on map | Quakes nearby
7 km (4 mi) NE of Orinda (Contra Costa County) (pop: 19,300) | Show on map | Quakes nearby
10 km (6 mi) N of Moraga (Contra Costa County) (pop: 17,300) | Show on map | Quakes nearby
10 km (6 mi) SW of Concord (pop: 128,700) | Show on map | Quakes nearby
11 km (7 mi) S of Martinez (pop: 38,100) | Show on map | Quakes nearby
14 km (9 mi) ENE of Berkeley (pop: 121,000) | Show on map | Quakes nearby
18 km (11 mi) NE of Oakland (pop: 419,300) | Show on map | Quakes nearby
31 km (19 mi) ENE of San Francisco (pop: 864,800) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 16.9°C (62 F), humidity: 33%, wind: 1 m/s (2 kts) from NE
Estimated seismic energy released1.6 x 107 joules (4.4 kilowatt hours) | 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
1.64.4 km4km N of Lafayette, CAUSGS
1.64.4 kmCentral CaliforniaRaspberryShake

User reports for this quake

At magnitude 1.6, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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