Minor earthquake 3.7 mag, 222 km SSE of Attu Station, Alaska

A minor earthquake magnitude 3.7 (ml/mb) has struck on Friday, 222 km SSE of Attu Station, Alaska (138 miles). The earthquake was roughly at a depth of 10 km (6 miles). Global time and date of event 09/05/25 / 2025-05-09 12:02:33 / May 9, 2025 @ 12:02 pm UTC/GMT. The temblor was detected at 12:02:33 / 12:02 pm (local time epicenter). Id of earthquake: us7000py8r. Event ids that are associated: ak0255xjhh3g, us7000py8r. Exact location, longitude 174.7868° East, latitude 51.1084° North, depth = 10 km.

In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days eight and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world.

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How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 222 km SSE of Attu Station, Alaska. This information comes from the USGS Earthquake Notification Service.

Alaska Attu Station

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	174.7868° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.1084° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	222 km SSE 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	2025-05-09 12:02:33	Time when the event occurred. UTC/GMT
Updated	2025-06-01 14:22:44	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	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	69	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.678	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.6 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	222	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	us7000py8r	Id of event.
Event Code	7000py8r	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak0255xjhh3g,us7000py8r,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.7 mag, 222 km SSE of Attu Station, Alaska

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