Minor earthquake: M2.9 quake has struck near Fort Washakie in Wyoming

A minor earthquake with magnitude 2.9 (ml/mb) was reported 25 kilometers (16 miles) from Fort Washakie in Wyoming on Sunday. The 2.9-magnitude earthquake has occurred at 10:08:02 / 10:08 am (local time epicenter). Exact location of earthquake, -109.1073° West, 42.8423° North, depth 5.576 km. The epicenter of the earthquake was roughly 5.576 km (3 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 28/09/25 / 2025-09-28 10:08:02 / September 28, 2025 @ 10:08 am. Unique identifier: us6000rdf4. Ids that are associated to the event: us6000rdf4.

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Riverton, Lander (min 5000 pop). Epicenter of the event was 63 km (39 miles) from Riverton (c. 10 600 pop), 31 km (19 miles) from Lander (c. 7 500 pop).

In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days 0 and in the last 365 days 0 earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 25 km SW of Fort Washakie, Wyoming. This data comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	2.9 mb	The magnitude for the event.
Longitude	-109.1073° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	42.8423° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	5.576 km	Depth of the event in kilometers.
Place	25 km SW of Fort Washakie, Wyoming	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-09-28 10:08:02	Time when the event occurred. UTC/GMT
Updated	2025-10-25 05:38:24	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	reviewed	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	129	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used	47	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.34	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.83 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	72	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us6000rdf4	Id of event.
Event Code	6000rdf4	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rdf4,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M2.9 quake has struck near Fort Washakie in Wyoming

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