Minor earthquake, 3.3 mag strikes near Atka in Alaska

A minor earthquake magnitude 3.3 (ml/mb) strikes 79 km ENE of Atka, Alaska (49 miles) on Thursday. Exact time and date of event in UTC/GMT: 20/03/25 / 2025-03-20 11:04:05 / March 20, 2025 @ 11:04 am. The temblor was reported at 11:04:05 / 11:04 am (local time epicenter). Exact location of earthquake, -173.1936° West, 52.5619° North, depth 219.344 km. All ids that are associated to the event: ak0253mu1375, us7000plyj. Unique identifier: us7000plyj. The earthquake was roughly at a depth of 219.344 km (136 miles).

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

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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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 79 km ENE of Atka, Alaska. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-173.1936° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.5619° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	219.344 km	Depth of the event in kilometers.
Place	79 km ENE 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	2025-03-20 11:04:05	Time when the event occurred. UTC/GMT
Updated	2025-04-17 06:48:35	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	33	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.592	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.81 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	166	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	us7000plyj	Id of event.
Event Code	7000plyj	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak0253mu1375,us7000plyj,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.3 mag strikes near Atka in Alaska

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