Moderate mag. 4.8 earthquake - 43 mi southwest of Eureka, Humboldt County, California, on 2020-03-22 08:27:38 -08:00 -

Moderate mag. 4.8 earthquake - 43 mi southwest of Eureka, Humboldt County, California, on 2020-03-22 08:27:38 -08:00

Moderate magnitude 4.8 earthquake at 12 km depth

22 Mar 16:32 UTC: First to report: USGS after 4 minutes.
Mar 22 16:33: Magnitude recalculated from 4.7 to 4.8.
Hypocenter depth recalculated from 11.9 to 12.4 km.
Date & time: 22 Mar 2020 16:27:38 UTC -
Local time at epicenter: 2020-03-22 08:27:38 -08:00
Magnitude: 4.8
Depth: 12.4 km
Epicenter latitude / longitude: 40.42517°N / 124.827°W (North Pacific Ocean, United States)
Nearest volcano: Escanaba Segment (234 km / 145 mi)
Nearby towns and cities:
50 km (31 mi) WSW of Ferndale (pop: 1,370) --> See nearby quakes!
60 km (37 mi) WSW of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
62 km (38 mi) W of Rio Dell (pop: 3,390) --> See nearby quakes!
70 km (43 mi) SW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
79 km (49 mi) SW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
80 km (50 mi) SW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
84 km (52 mi) SW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
92 km (57 mi) WNW of Redway (pop: 1,230) --> See nearby quakes!
352 km (219 mi) NW of Sacramento (pop: 490,700) --> See nearby quakes!
361 km (224 mi) NW of San Francisco (pop: 864,800) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 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
4.812 km47km WNW of Petrolia, CA (USA)USGS
4.820 kmOffshore Northern California (USA)EMSC
4.810 kmNear Coast of N. California (USA)GFZ

User reports for this quake (18)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Perris ca / Very weak shaking (MMI II) : I heard a now rumble and it shook then another loud rambled and it shook  
Fortuna / Weak shaking (MMI III)
Shelter Cove (77.5 km SE of epicenter) [Map] / Very weak shaking (MMI II)
59.2 km ENE of epicenter [Map] / Light shaking (MMI IV)
Fortuna CA (61.2 km ENE of epicenter) [Map] / Light shaking (MMI IV) : Jolt then shaking (reported through our app)  
Eureka (United States of America, 67 km NE of epicenter) : Just a quick, fast jolt. (reported through EMSC)  
Oakland (United States of America, 366 km SE of epicenter) : Just one quick thud. (reported through EMSC)  
Blue Lake (United States of America, 86 km NE of epicenter) : Quick shake (reported through EMSC)  
Mckinleyville (United States of America, 86 km NE of epicenter) : Just got my attention was about to exit the front door...when it stopped in Fieldbrook California.. (reported through EMSC)  
Mckinleyville (United States of America, 86 km NE of epicenter) : Smaller then the last 5.2 the other day..but preceededconceagain by the Utah quake 45 minute ago..! Field brook Mckinleyville are, Humboldt county California. (reported through EMSC)  
Arcata (United States of America, 85 km NE of epicenter) : Shook the walls. (reported through EMSC)  
(United States of America, 85 km NE of epicenter) : Woke us up in fieldbrook (reported through EMSC)  
Eureka (United States of America, 70 km NE of epicenter) : Felt small but could be distance away from me and or size. (reported through EMSC)  
Eureka (United States of America, 69 km NE of epicenter) : Short, gentle movement felt. Made my hanging pots and pans sway in the kitchen on first floor of Victorian house in central eureka. (reported through EMSC)  
Eureka (United States of America, 69 km NE of epicenter) : I was lying in bed and felt the bed lightly shake. (reported through EMSC)  
Eureka (United States of America, 68 km NE of epicenter) : Lite and long earthquake. (reported through EMSC)  
Eureka (United States of America, 61 km NE of epicenter) : Still going real small (reported through EMSC)  
Fortuna (United States of America, 58 km NE of epicenter) : Just a small jolt here.. (reported through EMSC)  
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