Help Ukraine

Moderate mag. 4.1 earthquake - 39 mi southeast of Worland, Washakie County, Wyoming, USA, on 4 Jul 3:17 pm (GMT -6) -

Moderate mag. 4.1 earthquake - 39 mi southeast of Worland, Washakie County, Wyoming, USA, on 4 Jul 3:17 pm (GMT -6) Moderate mag. 4.1 earthquake - 39 mi southeast of Worland, Washakie County, Wyoming, USA, on 4 Jul 3:17 pm (GMT -6)

Moderate magnitude 4.1 earthquake at 14 km depth

4 Jul 21:35 UTC: First to report: VolcanoDiscovery after 17 minutes.
4 Jul 21:38: Now using data updates from USGS
5 Jul 00:38: Hypocenter depth recalculated from 15.4 to 13.5 km (from 9.6 to 8.4 mi). Epicenter location corrected by 5.3 km (3.3 mi) towards NE.
5 Jul 00:52: Hypocenter depth recalculated from 13.5 to 14.4 km (from 8.4 to 8.9 mi).
Update Sun, 4 Jul 2021, 21:42
Magnitude 4.1 earthquake strikes near Worland, Washakie County, Wyoming, USA
4.1 quake 4 Jul 3:17 pm (GMT -6)
4.1 quake 4 Jul 3:17 pm (GMT -6)
A magnitude 4.1 earthquake near Worland, Washakie County, Wyoming, USA, was reported only 24 minutes ago by the United States Geological Survey, considered the key international and national agency that monitors seismic activity in the US. The earthquake occurred at a shallow depth of 9.6 miles beneath the epicenter early afternoon on Sunday 4 July 2021 at 3:17 pm local time. 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.1 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ten Sleep (pop. 250) located 29 miles from the epicenter, Worland (pop. 5,400) 39 miles away, Thermopolis (pop. 3,000) 41 miles away, and Buffalo (pop. 4,600) 61 miles away.

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

Earthquake data

Date & time: Jul 4, 2021 21:17:42 UTC -
Local time at epicenter: 4 Jul 3:17 pm (GMT -6)
Magnitude: 4.1
Depth: 14.4 km
Epicenter latitude / longitude: 43.6581°N / 107.3603°W (Washakie, Wyoming, United States)
Antipode: 43.658°S / 72.64°E
Nearby towns and cities:
42 km (26 mi) S of Ten Sleep (pop: 254) --> See nearby quakes!
62 km (39 mi) SE of Worland (pop: 5,370) --> See nearby quakes!
69 km (43 mi) E of Thermopolis (pop: 2,970) --> See nearby quakes!
93 km (58 mi) SW of Buffalo (pop: 4,630) --> See nearby quakes!
108 km (67 mi) NE of Riverton (pop: 10,900) --> See nearby quakes!
122 km (76 mi) NW of Casper (pop: 60,300) --> See nearby quakes!
131 km (81 mi) SSW of Sheridan (pop: 17,900) --> See nearby quakes!
144 km (90 mi) NE of Lander (Fremont County) (pop: 7,690) --> See nearby quakes!
165 km (102 mi) WSW of Gillette (pop: 32,600) --> See nearby quakes!
166 km (103 mi) SE of Cody (Park County) (pop: 9,790) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds 34.9°C (95 F), humidity: 18%, wind: 3 m/s (5 kts) from S
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | about seismic energy
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!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic 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
4.114 kmWyomingUSGS
4.114 kmWYOMINGEMSC

User reports for this quake (10)

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!
Translate
Willard springs / Light shaking (MMI IV) / vibration and rolling / 5-10 s : Sounded like booming thunder and felt the ground shake for several seconds. We heard it before we felt it | 6 users found this interesting.  
Buffalo, Johnson, Wyoming (94.2 km NNE of epicenter) [Map] / not felt : It was at 3:15 I got up to put co  
Thermopolis, Hot Springs, Wyoming (68.6 km W of epicenter) [Map] / not felt
Worland what / not felt
South Thermopolis, Wyoming / Light shaking (MMI IV) / both vertical and horizontal swinging / 2-5 s : Just realized that it probably was an earthquake, no anxiety or damage. Actually quite enjoyed feeling it and still being secure  
Worland, Wyoming / Weak shaking (MMI III) / rattling, vibrating / very short
Basin (97.3 km NW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s
Gillette (162.6 km ENE of epicenter) [Map] / not felt (reported through our app)
Roundup, Montana / not felt
THERMOPOLIS (69.7 km W of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
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:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • 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!
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.