Light earthquake, 4.1 mag strikes near Atka in Alaska

A light earthquake with magnitude 4.1 (ml/mb) was detected on Saturday, 175 km E of Atka, Alaska (109 miles). The earthquake was roughly at a depth of 53.099 km (33 miles). The temblor was detected at 15:53:11 / 3:53 pm (local time epicenter). Event id: us7000pfaj. Ids that are associated to the earthquake: us7000pfaj. Global date and time of event UTC/GMT: 15/02/25 / 2025-02-15 15:53:11 / February 15, 2025 @ 3:53 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -171.6293 West, latitude 52.1987 North, depth = 53.099 km.

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been five, in the last 10 days nine, in the past 30 days twenty-two and in the last 365 days one hundred and thirty earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 175 km E of Atka, Alaska.

Alaska Atka

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Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	-171.6293° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.1987° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	53.099 km	Depth of the event in kilometers.
Place	175 km E of Atka, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-02-15 15:53:11	Time when the event occurred. UTC/GMT
Updated	2025-03-04 22:39:15	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	259	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	16	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.306	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.4 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	202	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us7000pfaj	Id of event.
Event Code	7000pfaj	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pfaj,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.1 mag strikes near Atka in Alaska

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