Weak mag. 2.7 earthquake - 4.8 mi south of Eureka, Humboldt County, California, USA, on Saturday, 15 May 2021 at 03:02 (GMT) -

Weak mag. 2.7 earthquake - 4.8 mi south of Eureka, Humboldt County, California, USA, on Saturday, 15 May 2021 at 03:02 (GMT)

Weak magnitude 2.7 earthquake at 5 km depth

15 May 03:04 UTC: First to report: USGS after 2 minutes.
15 May 06:16: Magnitude recalculated from 2.8 to 2.7. Hypocenter depth recalculated from 2.2 to 5.3 km (from 1.4 to 3.3 mi). Epicenter location corrected by 1.3 km (0.8 mi) towards NW.
Date & time: 15 May 2021 03:02:12 UTC -
Magnitude: 2.7
Depth: 5.3 km
Epicenter latitude / longitude: 40.73467°N / 124.183°W (Humboldt, California, United States)
Nearest volcano: Mount Shasta (182 km / 113 mi)
Nearby towns and cities:
1 km (1 mi) NNE of Humboldt Hill (pop: 3,410) --> See nearby quakes!
8 km (5 mi) SSW of Eureka (Humboldt County) (pop: 27,000) --> See nearby quakes!
15 km (10 mi) N of Fortuna (Humboldt County) (pop: 12,000) --> See nearby quakes!
16 km (10 mi) SW of Bayside (Humboldt County) (pop: 17,100) --> See nearby quakes!
17 km (11 mi) SSW of Arcata (Humboldt County) (pop: 17,800) --> See nearby quakes!
25 km (15 mi) SSW of McKinleyville (Humboldt County) (pop: 15,200) --> See nearby quakes!
27 km (17 mi) NNW of Rio Dell (pop: 3,390) --> See nearby quakes!
35 km (22 mi) S of Westhaven-Moonstone (pop: 1,210) --> See nearby quakes!
152 km (94 mi) W of Redding (pop: 91,600) --> See nearby quakes!
332 km (206 mi) NW of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 108 joules (197 kilowatt hours, equivalent to 0.169 tons of TNT) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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
2.75.3 km2km E of Humboldt Hill, CA, USAUSGS
2.75 kmNORTHERN CALIFORNIA, USAEMSC
unknownn/aNear Hydesville, California, USAVolcanoDiscovery

User reports for this quake (16)

At magnitude 2.7, this quake might have been felt very close to the epicenter and under calm conditions.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Eureka (50.1 km SE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s
Eureka / Weak shaking (MMI III) / single vertical bump / very short : Big bang  
Eureka (0.7 km NE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / very short : I thought it was a bigger earthquake than it was but when I looked it up I realized it was very close. (reported through our app)  
elk river rd eureka ca / Light shaking (MMI IV) / single lateral shake / very short
6673 Hilltop dr, Eureka, Ca 95503 / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Very mild roll like a wind gust blew through. You could hear the creaking move through the house but very mild.  
EUREKA / Light shaking (MMI IV) / single lateral shake / very short
King Salmon, Eureka, CA / Very weak shaking (MMI II) / single vertical bump / 2-5 s : There was a single bump and then a couple of seconds of side to side gentle sway. Very short and light, but certainly felt it.  
Eureka (6.1 km NNE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 1-2 s : It was a definite bump (reported through our app)  
4.5 km N of epicenter [Map] / Weak shaking (MMI III) / single lateral shake / very short : One short but strong jolt (reported through our app)  
Eureka, ca (2.6 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : Super short quick jolt that felt vertical. I was on the second floor in a house and felt the quick vertical jolt and then a second or two of very very light horizontal shake. Entire duration was approximately 4-5 seconds.  
Eureka / Weak shaking (MMI III) / single lateral shake / 1-2 s : Sudden yet gentle snap towards the northeast then a light shake.  
College of the Redwoods, CA 95501 / Light shaking (MMI IV) / 2-5 s : Heard and felt the windows in my dorm room shake quite tremendously for two two three seconds. I could even see them vibrating. M2.8 is small, but I am about five miles away from the epicenter and in an upstairs room with loose framed windows.  
272 clark st eureka ca 95501 / Very weak shaking (MMI II) / single vertical bump / very short
Eureka (2.9 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / 1-2 s : Quick jolt. No shaking. No damage.  
Loleta / Weak shaking (MMI III)
5.3 km NE of epicenter [Map] / Light shaking (MMI IV) / single lateral shake / very short : moved NNE for approximately 1/4 second then back SSW, in a single jerk (reported through our app)  
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
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:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.