Moderate mag. 5.7 earthquake - North Pacific Ocean, 135 mi west of Coos Bay, Coos County, Oregon, USA, on Monday, 28 Dec 2020 11:10 pm (GMT -8) -

Moderate mag. 5.7 earthquake - North Pacific Ocean, 135 mi west of Coos Bay, Coos County, Oregon, USA, on Monday, 28 Dec 2020 11:10 pm (GMT -8)

Moderate magnitude 5.7 earthquake at 10 km depth

29 Dec 07:16 UTC: First to report: USGS after 6 minutes.
29 Dec 07:27: Hypocenter depth recalculated from 12.0 to 10.0 km (from 7.5 to 6.2 mi). Epicenter location corrected by 35 km (22 mi) towards E.
Date & time: 29 Dec 2020 07:10:29 UTC -
Local time at epicenter: Monday, 28 Dec 2020 11:10 pm (GMT -8)
Magnitude: 5.7
Depth: 10.0 km
Epicenter latitude / longitude: 43.3706°N / 126.914°W (North Pacific Ocean, Oregon, United States)
Nearest volcano: North Gorda Ridge (79 km / 49 mi)
Nearby towns and cities:
208 km (129 mi) WNW of Port Orford (pop: 1,150) --> See nearby quakes!
218 km (135 mi) W of Coos Bay (Coos County) (pop: 16,200) --> See nearby quakes!
290 km (180 mi) W of Roseburg (Douglas County) (pop: 22,100) --> See nearby quakes!
317 km (197 mi) WSW of Eugene (pop: 163,500) --> See nearby quakes!
321 km (199 mi) WSW of Corvallis (pop: 55,800) --> See nearby quakes!
322 km (200 mi) WSW of Springfield (pop: 60,900) --> See nearby quakes!
349 km (217 mi) WNW of Medford (pop: 79,800) --> See nearby quakes!
355 km (221 mi) WSW of Salem (pop: 164,500) --> See nearby quakes!
413 km (257 mi) SW of Portland (pop: 632,300) --> See nearby quakes!
4146 km (2576 mi) WNW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
269 km (167 mi) NW of North West Seal Rock Island --> See nearby quakes!
417 km (259 mi) SW of Sauvie Island --> See nearby quakes!
433 km (269 mi) WSW of Lady Island --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 10.8°C (51 F), humidity: 75%, wind: 4 m/s (7 kts) from N
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.2 x 1013 joules (6.22 gigawatt hours, equivalent to 5351 tons of TNT or 0.3 atomic bombs!) 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.
MagnitudeDepthLocationSource
M 5.710 kmOff the Coast of Oregon, USAUSGS
M 5.710 kmOff Coast of Oregon, USAGFZ
M 5.720 kmOFF COAST OF OREGON, USAEMSC
M 5.710 kmOff Coast of Oregon, USAGeoAu
M 5.610 kmOff the Coast of Oregon, USANIEP

User reports for this quake (63)

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!
Centralia, Washington (484.3 km NE of epicenter) [Map] / Very weak shaking (MMI II) / very short : I was sitting on my bed and felt a quick bump and thought it was the cat. I was getting ready to check my earthquake apps anyway as I do every day, multiple times a day, when I saw this had happened. I am in a basement room with carpeting but I have felt another like this recently as well; I think due to being underground and on a solid surface (cement slab under the carpet). Crazy! | 15 users found this interesting. (reported through our app)
97005 / Very weak shaking (MMI II) / rattling, vibrating : Was sitting on floor watching show w/ roommate. Grew up in SoCal, was talking myself out of "Is this an earthquake? ... Maybe just the neighbors dancing? The cat and dog are always goofy like this?" Felt floor shaking. ~30 seconds. Saw notification on phone 2.5 hours later, roommate also remembers feeling the shaking. | 12 users found this interesting.
Portland / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s : Im in a 9 story campus dorm building and noticed the shaking while I was playing my game on my two step bunk bed, the whole frame or mattress was moving and and I paused my game thinking it was my cat, she was asleep. But then I noticed my lamp swaying side to side. For a good 10 seconds probably when I had noticed it | 11 users found this interesting.
Portland Oregon / Very weak shaking (MMI II) / horizontal (sideways) swinging : Bed shaking on 2nd floor | 7 users found this interesting.
Yachats, oregon (20 km WSW of epicenter) [Map] / Weak shaking (MMI III) / 5-10 s : Thought a semi was passing on the highway | 6 users found this interesting.
Brownsville, OR 97327 (336.2 km ENE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Felt like a washing machine out of balance. But the washing machine wasn't running! | 5 users found this interesting.
Mariana, AZ (dove mountain) (1841.7 km SE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s : I was locking my door to leave and the. My door starting shaking in its own uncontrollably and so did all my neighbors like someone was trying to shake open my door very strongly then stopped and started again. My downstairs neighbor was wondering what happened as well. My sister who lives about 10 miles away in oro valley az said her roof was shaking. | 2 users found this interesting.
249.8 km ESE of epicenter [Map] / Very weak shaking (MMI II) / very short : Was there any "wave" or mild tsunami upon the coastal areas ? Like to know how big an earthquake has to be to get a wave big enough to be dangerous. Thanks. No,I was not there nor did I feel anything.
Cornelius (388.6 km NE of epicenter) [Map] / Very weak shaking (MMI II) : Sitting in my shed outside. Felt like the washer was in an unbalanced spin cycle for 5 or 6 seconds
219.8 km E of epicenter [Map] / not felt : Not felt
315.5 km E of epicenter [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 10-15 s (reported through our app)
Newport (268.6 km ENE of epicenter) [Map] / Very weak shaking (MMI II)
Vancouver Wa (424.1 km NE of epicenter) [Map] / Very weak shaking (MMI II) / very short : Single bump (reported through our app)
203.1 km E of epicenter [Map] / not felt
335.4 km ENE of epicenter [Map] / not felt (reported through our app)
Sacramento California (697 km SE of epicenter) [Map] / not felt : Not felt (reported through our app)
426.4 km NE of epicenter [Map] / Very weak shaking (MMI II) / single vertical bump / very short (reported through our app)
Swisshome (260 km ENE of epicenter) [Map] / not felt : Did not feel it (reported through our app)
Vancouver Wa (426.4 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short (reported through our app)
Heceta Beach (1472.2 km ENE of epicenter) [Map] / not felt : Not felt, but the cat was freaked out around the time of the quake. (reported through our app)
Everett, WA (618.7 km NE of epicenter) [Map] / not felt : Didn't feel it. (reported through our app)
1247.2 km SE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
216.6 km E of epicenter [Map] / not felt
636.5 km NNE of epicenter [Map] / not felt
992 km NNE of epicenter [Map] / not felt (reported through our app)
543.7 km NE of epicenter [Map] / not felt (reported through our app)
312.8 km ENE of epicenter [Map] / not felt
9664.5 km NNE of epicenter [Map] / Very weak shaking (MMI II) / 20-30 s
9386.7 km NNE of epicenter [Map] / Very strong shaking (MMI VII) / both vertical and horizontal swinging / 5-10 s
Clackamas Oregon Kaiser hospital (414.8 km NE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s
453.4 km NE of epicenter [Map] / not felt
518.2 km ENE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
361.5 km NE of epicenter [Map] / not felt (reported through our app)
North bend (218.1 km E of epicenter) [Map] / not felt
Springfield, Oregon. (322.1 km ENE of epicenter) [Map] / not felt : I have friends in abandon and Coos Bay Oregon Who May have felt it.
361.5 km NE of epicenter [Map] / not felt (reported through our app)
213.6 km E of epicenter [Map] / not felt
697.1 km SE of epicenter [Map] / not felt (reported through our app)
Portland, oregon (398.9 km NE of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s
Portland OR (411.7 km NE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Covington, Wa (579.6 km NE of epicenter) [Map] / not felt (reported through our app)
273.7 km NE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Gaston (377.3 km NE of epicenter) [Map] / not felt (reported through our app)
Edmonds wa (611.7 km NE of epicenter) [Map] / not felt (reported through our app)
Tacoma wa (545.5 km NE of epicenter) [Map] / not felt (reported through our app)
Portland, Oregon (426.5 km NE of epicenter) [Map] / not felt (reported through our app)
367.9 km SE of epicenter [Map] / not felt (reported through our app)
Coos Bay / not felt : Felt nothing in Coos Bay 12 blocks from the water
Medford / not felt
Coos Bay, Oregon / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s
Coos Bay / not felt
San Jose / not felt
Lincoln City, Oregon, Best Western / not felt
Coos Bay / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : Felt like someone was slightly shaking my bed, just the lightest shake, but it didn't last long.
Lebanon Oregon / not felt : Not felt
Dallas NC / Light shaking (MMI IV) / 5-10 s
Cape Ferrelo / Very weak shaking (MMI II) : Awakened from sleep without knowing why
Eatonville WA / not felt
Roseburg / not felt : Did not feel a thing
Winston Oregon, shaking like a washer on spin / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s
Rockaway Beaxh / not felt
Florence, Oregon / not felt
Salem or / not felt
Volcanoes & Earthquakes - new app for Android
to top
to top

Aftershocks of the 5.7 quake North Pacific Ocean, 135 mi west of Coos Bay, Coos County, Oregon, USA, 28 Dec 2020 11:10 pm (GMT -8)

More info
Recorded aftershocks, latest first (1 quakes):
  • 29 Dec 2020 10:14 UTC
    | M 3.2 |
    10 km (6.2 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details

to top

Earlier earthquakes in the same area since 1900

Moderate mag. 5.7 earthquake - North Pacific Ocean, 135 mi west of Coos Bay, Coos County, Oregon, USA, on Monday, 28 Dec 2020 11:10 pm (GMT -8)

Map of earlier quakes

Volcanoes & Earthquakes - new app for Android
to top
Why is there advertising on this site?

Support us - Help us upgrade our server!

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.
Our server is reaching its limits and we need financing to increase capacity in order to deal with huge activity peaks when quakes occur. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every penny counts and every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features and in upgrading our software, please make a donation (PayPal or Online cc 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! With best regards from the VolcanoDiscovery team.
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.