Moderate mag. 4.4 earthquake - North Pacific Ocean, 63 mi southwest of Эврика, Humboldt County, California, USA, on Saturday, 16 Jan 2021 10:25 pm (GMT -8) -

Moderate mag. 4.4 earthquake - North Pacific Ocean, 63 mi southwest of Эврика, Humboldt County, California, USA, on Saturday, 16 Jan 2021 10:25 pm (GMT -8)

Moderate magnitude 4.4 earthquake at 15 km depth

17 Jan 06:29 UTC: First to report: USGS after 4 minutes.
17 Jan 06:31: Magnitude recalculated from 4.4 to 4.3.
... [show all] ...
17 Jan 10:36: Hypocenter depth recalculated from 9.7 to 14.7 km (from 6 to 9.1 mi). Epicenter location corrected by 3.6 km (2.2 mi) towards W.
Update Sun, 17 Jan 2021, 06:33
Light 4.3 quake hits near Eureka, Humboldt County, California, United States
4.3 quake 16 Jan 10:25 pm (GMT -8)
4.3 quake 16 Jan 10:25 pm (GMT -8)
The United States Geological Survey (USGS) reported a magnitude 4.3 quake in the United States near Eureka, Humboldt County, California, only 8 minutes ago. The earthquake hit late at night on Saturday 16 January 2021 at 10:25 pm local time at a very shallow depth of 2.7 miles. 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 4.3 earthquake as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ferndale (pop. 1,400) located 54 miles from the epicenter, Fortuna (pop. 12,000) 59 miles away, Pine Hills (pop. 3,100) 62 miles away, and Eureka (pop. 27,000) 63 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake data:

Date & time: 17 Jan 2021 06:25:18 UTC -
Local time at epicenter: Saturday, 16 Jan 2021 10:25 pm (GMT -8)
Magnitude: 4.4
Depth: 14.7 km
Epicenter latitude / longitude: 40.38067°N / 125.23117°W (North Pacific Ocean, California, United States)
Nearest volcano: Escanaba Segment (206 km / 128 mi)
Nearby towns and cities:
85 km (53 mi) WSW of Ferndale (pop: 1,370) --> See nearby quakes!
94 km (58 mi) WSW of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
102 km (63 mi) WSW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
111 km (69 mi) WSW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
111 km (69 mi) WSW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
114 km (71 mi) SW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
241 km (150 mi) W of Redding (pop: 91,600) --> See nearby quakes!
292 km (182 mi) SW of Medford (Oregon) (pop: 79,800) --> See nearby quakes!
305 km (190 mi) NW of Santa Rosa (pop: 175,000) --> See nearby quakes!
384 km (239 mi) NW of Concord (pop: 128,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 12.6°C (55 F), humidity: 78%, wind: 10 m/s (20 kts) from NNW
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 4.415 km80km W of Petrolia, CA, USAUSGS
M 4.410 kmOFFSHORE NORTHERN CALIFORNIA, USAEMSC

User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
383.6 km ESE of epicenter [Map] / not felt (reported through our app)
Benicia, CA (369.2 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / very short (reported through our app)
445.4 km SE of epicenter [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s (reported through our app)
San Jose CA. / Very weak shaking (MMI II) / horizontal (sideways) swinging / very short
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