Strong mag. 5.5 earthquake - North Pacific Ocean, 160 mi west of Eureka, Humboldt County, California, USA, on 2020-05-17 23:02:34 -08:00 -

Strong mag. 5.5 earthquake - North Pacific Ocean, 160 mi west of Eureka, Humboldt County, California, USA, on 2020-05-17 23:02:34 -08:00

Tremblement de terre fort magnitude 5.5 at 10 km depth

18 May 07:06 UTC: Premier à signaler: USGS après 4 minutes.
May 18 07:09: Magnitude recalculée de 3.6 à 5.0.
Profondeur recalculée de 11.0 à 10.0 km.
Date & time: 18 May 2020 07:02:34 UTC -
Local time at epicenter: 2020-05-17 23:02:34 -08:00
Magnitude: 5.5
Profondeur: 10.0 km
Epicenter latitude / longitude: 40.8281°N / 127.2301°W (Océan Pacifique Nord, Comté de Kern, États-Unis)
Volcan le plus près: Escanaba Segment (22 km / 14 mi)
Nearby towns and cities:
252 km O de Ferndale (pop: 1,370) --> Voir les séismes à proximité!
258 km O de Eureka (Humboldt County) (pop: 27,000) --> Voir les séismes à proximité!
263 km O de McKinleyville (Humboldt County) (pop: 15,200) --> Voir les séismes à proximité!
265 km O de Arcata (Humboldt County) (pop: 17,800) --> Voir les séismes à proximité!
266 km O de Bayside (Humboldt County) (pop: 17,100) --> Voir les séismes à proximité!
399 km OSO de Medford (Oregon) (pop: 79,800) --> Voir les séismes à proximité!
409 km O de Redding (pop: 91,600) --> Voir les séismes à proximité!
469 km NO de Santa Rosa (pop: 175,000) --> Voir les séismes à proximité!
535 km NO de San Francisco (pop: 864,800) --> Voir les séismes à proximité!
602 km NO de San José (pop: 1,026,900) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) 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.
MagnitudeProfondeurLocationSource
M 5.510 km252km W of Ferndale, California (USA)USGS
M 5.510 kmOff Coast Of Northern California (USA)EMSC
M 5.310 kmOff Coast of N. California (USA)GFZ
M 5.410 kmOff Coast of N. California (USA)GeoAu

User reports for this quake (13)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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98664 (653.8 km NNE of epicenter) [Map] / not felt : Definitely not felt near Portland Oregon. Scared though we will get one since the last 3 days Nevada, BC Canada, and now this one. I'm afraid our region will soon follow. (I've never felt an earthquake) (reported through our app)
1216.9 km SE of epicenter [Map] / not felt
Sandy, People's Republic of Utah (1296.9 km E of epicenter) [Map] / not felt : Not felt. (reported through our app)
1122.9 km SE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
Napa California / Moderate shaking (MMI V) : Felt one before midnight too then this one stronger in Ferndale. Im very sensitive to quakes,some say I call em before they happen. Ferndale it made me nautious, thats how I awoke, which the nausea is very unusual, Had a couple things move & my ofc desk drawer slightly opened
Fortuna ca / Weak shaking (MMI III)
Northridge CA / Weak shaking (MMI III) : Felt laying down woke from light sleep
Eureka ca / Strong shaking (MMI VI) : Trees fell in my area
LHH / Weak shaking (MMI III)
San Mateo ca / Very weak shaking (MMI II)
Agoura Hills / not felt : Just heard a noise from the toys twice after a few minutes again but not feels shaking
Agoura Hills / Very weak shaking (MMI II) : We just here noise from the toys of the kids but not feel a movement
Agoura Hills / Very weak shaking (MMI II)
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Aftershocks

More info
Recorded aftershocks, latest first (1 quakes):
  • 19 May 2020 07:10 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    9 km (6 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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