Minor earthquake 3.7 mag, 89 km E of Nikolski, Alaska

A minor earthquake magnitude 3.7 (ml/mb) strikes 89 km E of Nikolski, Alaska (55 miles) on Tuesday. Exact location, longitude -167.5356° West, latitude 53.0167° North, depth = 80.233 km. Global date and time of event UTC/GMT: 30/09/25 / 2025-09-30 20:55:27 / September 30, 2025 @ 8:55 pm. The earthquake occurred at a depth of 80.233 km (50 miles). The temblor was reported at 20:55:27 / 8:55 pm (local time epicenter). Id of earthquake: us6000rdx0. Event ids that are associated: us6000rdx0.

There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 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 one and in the last 365 days one hundred and fourty-six earthquakes of magnitude 3.0 or greater that was reported nearby.

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 89 km E of Nikolski, Alaska.

Alaska Nikolski

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-167.5356° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.0167° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	80.233 km	Depth of the event in kilometers.
Place	89 km E of Nikolski, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-09-30 20:55:27	Time when the event occurred. UTC/GMT
Updated	2025-10-06 17:01:55	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	,us,	A comma-separated list of network contributors.
Number of Stations Used	19	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.455	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.26 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	210	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	us6000rdx0	Id of event.
Event Code	6000rdx0	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rdx0,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.7 mag, 89 km E of Nikolski, Alaska

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