Light mag. 4.2 earthquake - 32 mi southwest of Eureka, Humboldt County, California, on 2020-05-19 07:58:31 -08:00 -

Light mag. 4.2 earthquake - 32 mi southwest of Eureka, Humboldt County, California, on 2020-05-19 07:58:31 -08:00

Light magnitude 4.2 earthquake at 24 km depth

19 May 16:02 UTC: First to report: USGS after 4 minutes.
May 19 16:03: Magnitude recalculated from 4.1 to 4.2.
Hypocenter depth recalculated from 23.1 to 23.6 km.
Date & time: 19 May 2020 15:58:31 UTC -
Local time at epicenter: 2020-05-19 07:58:31 -08:00
Magnitude: 4.2
Depth: 23.6 km
Epicenter latitude / longitude: 40.45383°N / 124.562°W (North Pacific Ocean, United States)
Nearest volcano: Black Butte (216 km / 134 mi)
Nearby towns and cities:
29 km (18 mi) WSW of Ferndale (pop: 1,370) --> See nearby quakes!
38 km (23 mi) WSW of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
39 km (24 mi) W of Rio Dell (pop: 3,390) --> See nearby quakes!
51 km (32 mi) SW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
60 km (37 mi) SW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
61 km (38 mi) SW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
67 km (42 mi) SW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
73 km (45 mi) WNW of Redway (pop: 1,230) --> See nearby quakes!
184 km (114 mi) W of Redding (pop: 91,600) --> See nearby quakes!
251 km (156 mi) SW of Medford (pop: 79,800) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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
4.224 km28km WNW of Petrolia, CA (USA)USGS
4.234 kmOffshore Northern California (USA)EMSC

User reports for this quake (9)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Eureka ca (44 km NE of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Eureka, CA / Light shaking (MMI IV) : very sharp jerk then mild rolling. Things rattled for about 40 seconds  
Ferndale / Light shaking (MMI IV)
Eureka (United States of America, 64 km NE of epicenter) : It rattled the house noticeably...several tremors. (reported through EMSC)  
Eureka (United States of America, 64 km NE of epicenter) : Quick little jerk in Myrtletown. (reported through EMSC)  
Eureka (United States of America, 62 km NE of epicenter) : Really a light jolt. (reported through EMSC)  
Eureka (United States of America, 59 km NE of epicenter) : I felt a jolt- my 2 colleagues did not - I don't know how they didn't. Six Rivers National Forest bldg in Eureka, CA. I heard the building creak right when I felt the quick jolt. (reported through EMSC)  
Eureka (United States of America, 59 km NE of epicenter) : Building had a minor jolt - Eureka California (reported through EMSC)  
Eureka (United States of America, 55 km NE of epicenter) : Real small about 9:00 am (reported through EMSC)  
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