Moderate mag. 4.9 earthquake - 60 mi southwest of Eureka, Humboldt County, California, on 2020-03-08 22:32:59 -08:00 -

This quake was likely an aftershock of the 5.8 quake North Pacific Ocean, 56 mi southwest of Eureka, Humboldt County, California, USA, 2020-03-08 18:59:08 -08:00, which had occurred 4 hours earlier.
Moderate mag. 4.9 earthquake - 60 mi southwest of Eureka, Humboldt County, California, on 2020-03-08 22:32:59 -08:00

Moderate magnitude 4.9 earthquake at 7 km depth

9 Mar 06:37 UTC: First to report: USGS after 4 minutes.
Mar 9 06:40: Magnitude recalculated from 5.0 to 4.9.
Hypocenter depth recalculated from 2.2 to 7.2 km.
Date & time: 9 Mar 2020 06:32:59 UTC -
Local time at epicenter: 2020-03-08 22:32:59 -08:00
Magnitude: 4.9
Depth: 7.2 km
Epicenter latitude / longitude: 40.36483°N / 125.14317°W (North Pacific Ocean, United States)
Nearest volcano: Escanaba Segment (191 km / 119 mi)
Nearby towns and cities:
78 km (48 mi) WSW of Ferndale (pop: 1,370) --> See nearby quakes!
87 km (54 mi) WSW of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
89 km (55 mi) W of Rio Dell (pop: 3,390) --> See nearby quakes!
96 km (60 mi) WSW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
105 km (66 mi) WSW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
106 km (66 mi) WSW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
109 km (68 mi) SW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
234 km (145 mi) W of Redding (pop: 91,600) --> See nearby quakes!
372 km (231 mi) NW of San Francisco (pop: 864,800) --> See nearby quakes!
378 km (235 mi) NW of Oakland (pop: 419,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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.
4.97.2 km73km W of Petrolia, CA (USA)USGS
5.010 kmOffshore Northern California (USA)EMSC
4.810 kmNear Coast of N. California (USA)GFZ

User reports for this quake (12)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Las vegas / Strong shaking (MMI VI)
Las vegas / Strong shaking (MMI VI)
Fortuna (88.8 km ENE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
94.8 km ENE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Arcata, Ca 95521 (106.7 km ENE of epicenter) [Map] / Very weak shaking (MMI II) : Gentle shaking then a bit harder than dissipated. Not as long as the last one:) (reported through our app)  
95.6 km ENE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
Rio Dell (United States of America, 84 km E of epicenter) : I wasn't sure if this was a earthquake. (reported through EMSC)  
El Sobrante (United States of America, 361 km SE of epicenter) : Laying in bed... didn’t feel anything. (reported through EMSC)  
Petaluma (United States of America, 317 km SE of epicenter) : Petaluma, nothing felt. (reported through EMSC)  
Redway (United States of America, 107 km E of epicenter) : Keep on rolling in Redway... (reported through EMSC)  
Mckinleyville (United States of America, 95 km NE of epicenter) : Watching TV couch shook lamp shook a little...don't like these tremors (reported through EMSC)  
Arcata (United States of America, 92 km NE of epicenter) : Quick jolt with minimal rumbling for short time after, felt on the second floor of an older building near Safeway in Arcata. (reported through EMSC)  
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