Contact | RSS | EN | DE | EL | ES | FR | IT | RU

Moderate mag. 4.8 earthquake - North Pacific Ocean, 45 mi southwest of Eureka, Humboldt County, California, USA, on Saturday, Sep 24, 2022 at 11:27 am (GMT -8) -

Moderate mag. 4.8 earthquake - North Pacific Ocean, 45 mi southwest of Eureka, Humboldt County, California, USA, on Saturday, Sep 24, 2022 at 11:27 am (GMT -8) Moderate mag. 4.8 earthquake - North Pacific Ocean, 45 mi southwest of Eureka, Humboldt County, California, USA, on Saturday, Sep 24, 2022 at 11:27 am (GMT -8)

Moderate magnitude 4.8 earthquake at 13 km depth

24 Sep 19:29 UTC: First to report: VolcanoDiscovery after 2 minutes.
24 Sep 19:32: Now using data updates from RaspberryShake
... [show all] ...
24 Sep 21:34: Hypocenter depth recalculated from 2.4 to 13.1 km (from 1.5 to 8.1 mi). Epicenter location corrected by 7.1 km (4.4 mi) towards E.
Update Sat, 24 Sep 2022, 19:39

Magnitude 4.8 earthquake strikes near Eureka, Humboldt County, California, USA

4.8 quake 24 Sep 11:27 am (GMT -8)
4.8 quake 24 Sep 11:27 am (GMT -8)
The United States Geological Survey reported a magnitude 4.8 quake in the United States near Eureka, Humboldt County, California, only 11 minutes ago. The earthquake hit in the morning on Saturday, September 24th, 2022, at 11:27 am local time at a very shallow depth of 1.5 miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by The Incorporated Research Institutions for Seismology (IRIS), which listed it as a magnitude 4.9 earthquake. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 4.6, the citizen-seismograph network of RaspberryShake at magnitude 4.6, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.8.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Ferndale (pop. 1,400) located 34 miles from the epicenter, Rio Dell (pop. 3,400) 39 miles away, Fortuna (pop. 12,000) 39 miles away, Humboldt Hill (pop. 3,400) 43 miles away, Pine Hills (pop. 3,100) 45 miles away, Eureka (pop. 27,000) 47 miles away, Bayside (pop. 17,100) 53 miles away, Arcata (pop. 17,800) 54 miles away, and McKinleyville (pop. 15,200) 57 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online: Android | iOS

Earthquake details

Date & timeSep 24, 2022 19:27:39 UTC -
Local time at epicenterSaturday, Sep 24, 2022 at 11:27 am (GMT -8)
StatusConfirmed
Magnitude4.8
Depth13.1 km
Epicenter latitude / longitude40.31367°N / 124.7245°W (North Pacific Ocean, California, United States)
Antipode40.314°S / 55.276°E
Shaking intensityModerate shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoClear Lake (224 km / 139 mi)
Nearby towns and cities49 km (30 mi) SW of Ferndale (pop: 1,370) | Show on map | Quakes nearby
57 km (36 mi) SW of Fortuna (Humboldt County) (pop: 12,000) | Show on map | Quakes nearby
72 km (45 mi) SW of Eureka (Humboldt County) (pop: 27,000) | Show on map | Quakes nearby
81 km (50 mi) SW of Bayside (Humboldt County) (pop: 17,100) | Show on map | Quakes nearby
82 km (51 mi) SW of Arcata (Humboldt County) (pop: 17,800) | Show on map | Quakes nearby
88 km (55 mi) SW of McKinleyville (Humboldt County) (pop: 15,200) | Show on map | Quakes nearby
200 km (124 mi) W of Redding (pop: 91,600) | Show on map | Quakes nearby
256 km (159 mi) NW of Windsor (Sonoma County) (pop: 27,500) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 16.7°C (62 F), humidity: 83%, wind: 6 m/s (12 kts) from N
Estimated seismic energy released1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) | about seismic energy
Show interactive Map
[smaller] [bigger]

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.
Mag.DepthLocationSource
4.813 km37km W of Petrolia, CAUSGS
4.836 kmOFFSHORE NORTHERN CALIFORNIAEMSC
4.813 km44km W of Petrolia, CARaspberryShake
4.910 kmNear Coast Of Northern Calif.IRIS
4.710 kmNear Coast of Northern CaliforniaGFZ

Seismograms

Seismic station: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 452 km / 281 mi | Show on map | Station Info
Seismic station Columbia College, Columbia, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

Support us - Help us upgrade our services!

We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Design upgrade
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.
Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.
Volcanoes & Earthquakes
VolcanoDiscovery Home
Volcanoes | Earthquakes | Photos | Volcano News | App
Adventure & Study Travel
Tours to Volcanoes and Volcanic Areas: walking tours, photo tours, study tours
Tours & Dates | FAQ | About us
Get our newsletter!
Company info
Contact | Legal info | Terms & conditions
Follow us
Follow us on facebook Follow us on Instagram Follow us on Twitter Visit our Youtube channel
EN | DE | EL | ES | FR | IT | RU
VolcanoDiscovery GmbH, Germany, Reg. nr.: HRB 103744, EU Tax Id: DE 310 395 322 owned and created by
Dr. Tom Pfeiffer, volcanologist, volcano photographer, tour organizer member of
IAVCEI
Volcanological Society
Ecotourism Greece
Insured by R+V
VolcanoDiscovery © 2004- All Rights Reserved | Privacy - cookie settings