Minor earthquake, 3.46 mag strikes near Little America in Wyoming

A minor earthquake magnitude 3.46 (ml/mb) has occurred on Sunday, 4 kilometers (2 miles) from Little America in Wyoming. The earthquake was roughly at a depth of -3.41 km (-2 miles). Exact location of event, longitude -109.8865 West, latitude 41.577833333333 North, depth = -3.41 km. The temblor was picked up at 10:04:45 / 10:04 am (local time epicenter). Id of earthquake: uu80113576. Event ids that are associated: us6000qzlm, uu80113576. Exact time and date of event in UTC/GMT: 10/08/25 / 2025-08-10 10:04:45 / August 10, 2025 @ 10:04 am.

Event epicenter was 57 km (35 miles) from Rock Springs (c. 23 000 pop), 35 km (22 miles) from Green River (c. 12 500 pop). Nearest cities/city/towns to hypocenter/epicentrum was Rock Springs, Green River (min 5000 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

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

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 4 km NNW of Little America, Wyoming. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.46 mb	The magnitude for the event.
Longitude	-109.8865° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	41.577833333333° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	-3.41 km	Depth of the event in kilometers.
Place	4 km NNW of Little America, Wyoming	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-08-10 10:04:45	Time when the event occurred. UTC/GMT
Updated	2025-08-10 10:29:33	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	3.834	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	184	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	uu	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,uu,	A comma-separated list of network contributors.
Number of Stations Used	23	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1285	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.39 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	155	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	uu80113576	Id of event.
Event Code	80113576	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000qzlm,uu80113576,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.46 mag strikes near Little America in Wyoming

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