last update to page: April 10 2015 19:01:59 (UTC).

Magnitude 3.5 Earthquake: Wyoming


The red marker denotes the earthquake epicenter.

On Mon Feb 9th 2015 00:54:10 (UTC) the seismic network recorded an earthquake (preliminary 3.48 ml) located in Wyoming. Seismic region Eastern North America.

The epicentral distance (i.e. distance separating the location to the epicenter) to the closest station O20A in the network is 221.2 km.

If you felt the quake, the USGS would like to know. Please add your comments to the USGS page "Did you feel it?".


Time:Mon Feb 9th 2015 00:54:10 (UTC)
Magnitude:3.48 ml
Depth:-2.1 km

Proximity to Population Centers

  • 39 km NNW of Green River, WY, United States
  • 51 km ENE of Lyman, WY, United States
  • 54 km ESE of Kemmerer, WY, United States
  • 55 km WNW of Rock Springs, WY, United States
  • 58 km ENE of Fort Bridger, WY, United States

Event and active stations

The red marker denotes the earthquake epicenter.

Seismic waveforms for closest station

Closest station with identified signal. 0.01 Hz highpass Butterworth filter has been applied to data.

Seismic waveforms for vertical channels in network

Subset of several stations close to the event. 0.01 Hz highpass Butterworth filter has been applied to data.

Signal description at some stations

STA_CHANS-E DeltaS-E AzimuthPhase TimeSignal/NoiseTime ResidualV. ModelAutharid
O20A_BHZ1.987°321.7°Pb2015-02-09 00:54:47.5337 UTC-1-0.419iasp91dbp:vladik:15042255908
K22A_BHZ2.676°249.93°Pn2015-02-09 00:54:57.0679 UTC-11.804iasp91dbp:vladik:15042255871
H17A_BHZ2.759°169.29°Pb2015-02-09 00:54:59.5524 UTC-1-1.56iasp91dbp:vladik:15042255909
N23A_BHZ3.068°286.18°Pn2015-02-09 00:55:03.0582 UTC-12.408iasp91dbp:vladik:15042255872

External resources

Current seismic activity measured by the seismic network

Click the link below to observe an interactive map of earthquakes recorded by the station deployment: