Minor earthquake 3.3 mag, 246 km ESE of Attu Station, Alaska

A minor earthquake magnitude 3.3 (ml/mb) has occurred on Tuesday, 246 km ESE of Attu Station, Alaska (153 miles). The temblor was reported at 19:53:57 / 7:53 pm (local time epicenter). Exact time and date of event in UTC/GMT: 15/07/25 / 2025-07-15 19:53:57 / July 15, 2025 @ 7:53 pm. Exact location, longitude 176.3692° East, latitude 51.7967° North, depth = 28.5 km. The epicenter of the earthquake was roughly 28.5 km (18 miles) below the earth’s surface. Unique identifier: ak02590gyv2o. Ids that are associated to the event: ak02590gyv2o.

There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days five and in the last 365 days fourty-one earthquakes of magnitude 3.0 or greater that was reported nearby.

How would you describe the shaking?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 246 km ESE of Attu Station, Alaska.

Alaska Attu Station

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	176.3692° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.7967° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	28.5 km	Depth of the event in kilometers.
Place	246 km ESE of Attu Station, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-07-15 19:53:57	Time when the event occurred. UTC/GMT
Updated	2025-07-16 02:36:27	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	ak	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ak,	A comma-separated list of network contributors.
Number of Stations Used		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance		Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.66 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap		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	ak02590gyv2o	Id of event.
Event Code	02590gyv2o	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak02590gyv2o,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.3 mag, 246 km ESE of Attu Station, Alaska

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