Minor earthquake, 3.7 mag strikes near Adak in Alaska

A minor earthquake magnitude 3.7 (ml/mb) strikes 130 km WSW of Adak, Alaska (81 miles) on Thursday. The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface. The 3.7-magnitude earthquake has occurred at 16:33:16 / 4:33 pm (local time epicenter). Id of earthquake: us7000pn36. Event ids that are associated: ak0253yhxvzl, us7000pn36. Global date and time of event UTC/GMT: 27/03/25 / 2025-03-27 16:33:16 / March 27, 2025 @ 4:33 pm. Exact location of earthquake, longitude -178.2722 West, latitude 51.2934 North, depth = 35 km.

There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days eleven and in the last 365 days three hundred and twenty-nine earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 130 km WSW of Adak, Alaska. This data comes from the USGS Earthquake Notification Service.

Adak Alaska

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-178.2722° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.2934° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35 km	Depth of the event in kilometers.
Place	130 km WSW 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	2025-03-27 16:33:16	Time when the event occurred. UTC/GMT
Updated	2025-03-27 17:01:30	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	1	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	211	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	,ak,us,	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	0.427	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.67 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	206	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	us7000pn36	Id of event.
Event Code	7000pn36	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak0253yhxvzl,us7000pn36,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.7 mag strikes near Adak in Alaska

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