Weak mag. 3.0 earthquake - North Pacific Ocean, 5.1 mi northwest of Eureka, Humboldt County, California, USA, on Tuesday, 4 May 2021 12:37 am (GMT -7) -

Weak mag. 3.0 earthquake - North Pacific Ocean, 5.1 mi northwest of Eureka, Humboldt County, California, USA, on Tuesday, 4 May 2021 12:37 am (GMT -7)

Weak magnitude 3.0 earthquake at 24 km depth

4 May 07:39 UTC: First to report: USGS after 2 minutes.
Update Tue, 4 May 2021, 07:45
Small magnitude 3.0 earthquake 5 miles northwest of Eureka, California, United States
3.0 quake 4 May 12:37 am (GMT -7)
3.0 quake 4 May 12:37 am (GMT -7)
Just 7 minutes ago, a 3.0-magnitude earthquake struck near Eureka, Humboldt County, California, USA. The tremor was recorded after midnight on Tuesday 4 May 2021 at 12:37 am local time, at a shallow depth of 15 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.0 earthquake as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Samoa (pop. 260) located 3 miles from the epicenter, Eureka (pop. 27,000) 5 miles away, Humboldt Hill (pop. 3,400) 8 miles away, Pine Hills (pop. 3,100) 9 miles away, and Arcata (pop. 17,800) 9 miles away. In Bayside (pop. 17,100, 10 miles away), McKinleyville (pop. 15,200, 11 miles away), and Fortuna (pop. 12,000, 17 miles away), the quake was probably not felt.
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Earthquake data:

Date & time: 4 May 2021 07:37:40 UTC -
Local time at epicenter: Tuesday, 4 May 2021 12:37 am (GMT -7)
Magnitude: 3
Depth: 23.6 km
Epicenter latitude / longitude: 40.83733°N / 124.24834°W (North Pacific Ocean, California, United States)
Nearest volcano: Mount Shasta (183 km / 114 mi)
Nearby towns and cities:
6 km (3 mi) WNW of Samoa (pop: 258) --> See nearby quakes!
8 km (5 mi) WNW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
14 km (9 mi) WSW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
16 km (10 mi) W of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
17 km (11 mi) SW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
26 km (16 mi) SSW of Westhaven-Moonstone (pop: 1,210) --> See nearby quakes!
28 km (17 mi) NNW of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
39 km (25 mi) NNW of Rio Dell (pop: 3,390) --> See nearby quakes!
159 km (99 mi) W of Redding (pop: 91,600) --> See nearby quakes!
201 km (125 mi) SW of Medford (Oregon) (pop: 79,800) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2 x 109 joules (554 kilowatt hours, equivalent to 0.477 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.
3.024 km9km NW of Eureka, CA, USAUSGS
unspecifiedn/aNear Eureka, California, USAVolcanoDiscovery

User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Send your own user report!
14.1 km ENE of epicenter [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : Felt one jolt like someone slammed a big door. Could have knocked things over if it went back and forth. | One user found this interesting.  
Arcata,ca / Light shaking (MMI IV) / single vertical bump / 2-5 s : Woke me up | One user found this interesting.  
Eureka / Very weak shaking (MMI II) / single lateral shake / very short : A single jolt as the house creaked. | One user found this interesting.  
compton / Very weak shaking (MMI II) / complex rolling (tilting in multiple directions) / 5-10 s
Eureka, California (king salmon) / Light shaking (MMI IV) / single vertical bump / very short
Kneeland, CA / Light shaking (MMI IV)
Arcata / Light shaking (MMI IV) / single lateral shake / 1-2 s
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