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

Moderate mag. 3.9 earthquake - Wyoming, 17 mi northeast of West Yellowstone, Gallatin County, Montana, USA, on Sunday, Sep 18, 2022 at 6:55 am (GMT -6) -

Moderate mag. 3.9 earthquake - Wyoming, 17 mi northeast of West Yellowstone, Gallatin County, Montana, USA, on Sunday, Sep 18, 2022 at 6:55 am (GMT -6) Moderate mag. 3.9 earthquake - Wyoming, 17 mi northeast of West Yellowstone, Gallatin County, Montana, USA, on Sunday, Sep 18, 2022 at 6:55 am (GMT -6)

Moderate magnitude 3.9 earthquake at 10 km depth

18 Sep 13:01 UTC: First to report: USGS after 6 minutes.
18 Sep 13:22: Magnitude recalculated from 3.6 to 3.9. Hypocenter depth recalculated from 10.5 to 10.3 km (from 6.5 to 6.4 mi).

Earthquake details

Date & timeSep 18, 2022 12:55:19 UTC -
Local time at epicenterSunday, Sep 18, 2022 at 6:55 am (GMT -6)
StatusConfirmed
Magnitude3.9
Depth10.3 km
Epicenter latitude / longitude44.7885°N / 110.8105°W (Park, Wyoming, United States)
Antipode44.789°S / 69.19°E
Shaking intensityWeak shaking
Felt5 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoYellowstone (41 km / 25 mi)
Nearby towns and cities23 km (14 mi) SSW of Mammoth (pop: 263) | Show on map | Quakes nearby
27 km (17 mi) ENE of West Yellowstone (Montana) (pop: 1,340) | Show on map | Quakes nearby
70 km (44 mi) SE of Big Sky (Montana) (pop: 2,310) | Show on map | Quakes nearby
99 km (62 mi) S of Livingston (Park County, Montana) (pop: 7,300) | Show on map | Quakes nearby
101 km (63 mi) S of Bozeman (Montana) (pop: 43,400) | Show on map | Quakes nearby
132 km (82 mi) NE of Rexburg (Madison County, Idaho) (pop: 27,700) | Show on map | Quakes nearby
177 km (110 mi) NNE of Idaho Falls (pop: 59,200) | Show on map | Quakes nearby
191 km (119 mi) SE of Butte (Montana) (pop: 34,200) | Show on map | Quakes nearby
Weather at epicenter at time of quakeFew Clouds -5.1°C (23 F), humidity: 95%, wind: 2 m/s (3 kts) from ESE
Estimated seismic energy released4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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
3.910.3 kmWyomingUSGS
3.910 kmYELLOWSTONE NAT. PARK, WYOMINGEMSC
3.910.3 kmYellowstone Region, WyomingRaspberryShake
3.910 kmYellowstone Region, WyomingIRIS
4.210 kmYellowstone Region, WyomingGFZ

Seismograms

Seismic station: Flagg Ranch, Wyoming, USA (FLWY/IW network) | Distance from quake: 79 km / 49 mi | Show on map | Station Info
Seismic station Flagg Ranch, Wyoming, 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 (5)

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
West Yellowstone Montana / Light shaking (MMI IV) / complex rolling (tilting in multiple directions) / 2-5 s : It felt like a rolling or ripple type motion with two distinct ripples to it within a span of 2-3 seconds. Slight building creaking sound at the same time. | 5 users found this interesting.  
Madison campground / Weak shaking (MMI III) / 2-5 s : Thought an animal was shaking our motor home, jumped up and looked out all the windows and nothing was there | 2 users found this interesting.  
Yellowstone National t (16.2 km SSW of epicenter) [Map] / Light shaking (MMI IV) / vibration and rolling
West Yellowstone, MT / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 10-15 s : It felt like a sideways rolling action, and repeated twice. A gentle, rocking movement.  
Island Park idaho / Very weak shaking (MMI II) / single lateral shake / 2-5 s (reported through our app)

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