Minor earthquake, 3.5 mag has occurred near Adak in Alaska

A minor earthquake magnitude 3.5 (ml/mb) has struck on Tuesday, 51 km S of Adak, Alaska (32 miles). The temblor was picked up at 02:36:13 / 2:36 am (local time epicenter). Id of earthquake: us7000pett. Event ids that are associated: us7000pett. Global time and date of event 11/02/25 / 2025-02-11 02:36:13 / February 11, 2025 @ 2:36 am UTC/GMT. The earthquake was roughly at a depth of 35 km (22 miles). Exact location of earthquake, longitude -176.7259 West, latitude 51.4159 North, depth = 35 km.

In the past 24 hours, there have been six, in the last 10 days six, in the past 30 days twenty-two and in the last 365 days three hundred and thirty-nine earthquakes of magnitude 3.0 or greater that have been detected 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.

Did you feel it?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 51 km S of Adak, Alaska.

Adak Alaska

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Parameter	Value	Description
Magnitude	3.5 mb	The magnitude for the event.
Longitude	-176.7259° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.4159° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35 km	Depth of the event in kilometers.
Place	51 km S of Adak, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-02-11 02:36:13	Time when the event occurred. UTC/GMT
Updated	2025-03-04 02:10:03	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	188	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	14	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.512	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	223	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	us7000pett	Id of event.
Event Code	7000pett	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pett,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.5 mag has occurred near Adak in Alaska

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