Minor earthquake, 3.7 mag has occurred near Nikolski in Alaska

A minor earthquake magnitude 3.7 (ml/mb) has struck on Saturday, 93 km WSW of Nikolski, Alaska (58 miles). Date and time of earthquake in UTC/GMT: 06/09/25 / 2025-09-06 20:26:30 / September 6, 2025 @ 8:26 pm. The 3.7-magnitude earthquake was detected at 20:26:30 / 8:26 pm (local time epicenter). Exact location, longitude -170.074° West, latitude 52.5385° North, depth = 63.471 km. The earthquake was roughly at a depth of 63.471 km (39 miles). Event ids that are associated to the earthquake: us6000rduj. Id of event: us6000rduj.

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. In the past 24 hours, there have been six, in the last 10 days twenty-two, in the past 30 days twenty-six and in the last 365 days one hundred and ninety-six earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

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: 93 km WSW of Nikolski, Alaska.

Alaska Nikolski

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-170.074° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.5385° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	63.471 km	Depth of the event in kilometers.
Place	93 km WSW 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	2025-09-06 20:26:30	Time when the event occurred. UTC/GMT
Updated	2025-10-03 04:33:26	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	23	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.859	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.83 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	175	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	us6000rduj	Id of event.
Event Code	6000rduj	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rduj,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.7 mag has occurred near Nikolski in Alaska

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