Light earthquake: M4.4 quake has struck near Adak in Alaska

A light earthquake with magnitude 4.4 (ml/mb) was detected on Thursday, 87 km SSE of Adak, Alaska (54 miles). Exact location of event, depth 35.25 km, -176.2109° West, 51.1329° North. The temblor was reported at 17:56:25 / 5:56 pm (local time epicenter). All ids that are associated to the event: us7000pldt, ak0253mxwu8w. Unique identifier: us7000pldt. Global date and time of event UTC/GMT: 20/03/25 / 2025-03-20 17:56:25 / March 20, 2025 @ 5:56 pm. The epicenter was at a depth of 35.25 km (22 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been thirteen, in the last 10 days sixteen, in the past 30 days twenty and in the last 365 days three hundred and fourty-five earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 87 km SSE of Adak, Alaska. This data comes from the USGS Earthquake Notification Service.

Adak Alaska

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Parameter	Value	Description
Magnitude	4.4 mb	The magnitude for the event.
Longitude	-176.2109° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.1329° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35.25 km	Depth of the event in kilometers.
Place	87 km SSE 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	2025-03-20 17:56:25	Time when the event occurred. UTC/GMT
Updated	2025-03-20 18:18:38	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	2.551	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	298	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,ak,	A comma-separated list of network contributors.
Number of Stations Used	51	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.93	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.95 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	188	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	us7000pldt	Id of event.
Event Code	7000pldt	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pldt,ak0253mxwu8w,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.4 quake has struck near Adak in Alaska

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