Minor earthquake, 2.8 mag was detected near South Hills in Montana

A minor earthquake with magnitude 2.8 (ml/mb) was detected on Sunday, 2 kilometers (1 miles) from South Hills in Montana. Exact location of earthquake, longitude -112.0007 West, latitude 46.577 North, depth = 10 km. Event ids that are associated to the earthquake: us6000pxuq. Id of event: us6000pxuq. Global date and time of event UTC/GMT: 09/03/25 / 2025-03-09 21:38:16 / March 9, 2025 @ 9:38 pm. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. The temblor was reported at 21:38:16 / 9:38 pm (local time epicenter).

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Butte, Helena Valley West Central, Helena Valley Southeast. Epicenter of the event was 76 km (47 miles) from Butte (c. 34 200 pop), 3 km (2 miles) from Helena (c. 28 200 pop), 7 km (5 miles) from Helena Valley Southeast (c. 8 200 pop), 11 km (7 miles) from Helena Valley West Central (c. 7 900 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. 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 three earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 1,300,000 minor quakes in the world each year.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 2 km N of South Hills, Montana. This data comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	2.8 mb	The magnitude for the event.
Longitude	-112.0007° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	46.577° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	2 km N of South Hills, Montana	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-03-09 21:38:16	Time when the event occurred. UTC/GMT
Updated	2025-03-09 21:59:52	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	29	The total number of felt reports
CDI	4.1	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	133	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	21	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.798	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.82 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	78	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	us6000pxuq	Id of event.
Event Code	6000pxuq	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000pxuq,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.8 mag was detected near South Hills in Montana

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