Minor earthquake, 3.3 mag strikes near Adak in Alaska

A minor earthquake with magnitude 3.3 (ml/mb) was reported 75 km S of Adak, Alaska (47 miles) on Friday. Global time and date of event 04/04/25 / 2025-04-04 05:32:22 / April 4, 2025 @ 5:32 am UTC/GMT. Event id: us7000puk2. Ids that are associated to the earthquake: ak0254bjopam, us7000puk2. Exact location of event, longitude -176.4615 West, latitude 51.2056 North, depth = 20.651 km. The 3.3-magnitude earthquake has occurred at 05:32:22 / 5:32 am (local time epicenter). The earthquake was roughly at a depth of 20.651 km (13 miles).

Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been eight, in the last 10 days thirteen, in the past 30 days one hundred and seventy-one and in the last 365 days five hundred earthquakes of magnitude 3.0 or greater that has occurred nearby.

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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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 75 km S of Adak, Alaska.

Adak Alaska

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-176.4615° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.2056° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	20.651 km	Depth of the event in kilometers.
Place	75 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	2025-04-04 05:32:22	Time when the event occurred. UTC/GMT
Updated	2025-04-24 06:19:12	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	168	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	0.658	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.79 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	221	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	us7000puk2	Id of event.
Event Code	7000puk2	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak0254bjopam,us7000puk2,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.3 mag strikes near Adak in Alaska

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