Minor earthquake, 3.7 mag strikes near Nanwalek in Alaska

A minor earthquake magnitude 3.7 (ml/mb) has occurred on Wednesday, 52 kilometers (32 miles) from Nanwalek in Alaska. Event ids that are associated to the earthquake: ak025cwudqus. Id of event: ak025cwudqus. The temblor was picked up at 07:33:55 / 7:33 am (local time epicenter). Date and time of earthquake in UTC/GMT: 08/10/25 / 2025-10-08 07:33:55 / October 8, 2025 @ 7:33 am. The epicenter was at a depth of 95.9 km (60 miles). Exact location of event, longitude -152.7983 West, latitude 59.4931 North, depth = 95.9 km.

Event epicenter was 72 km (45 miles) from Homer (c. 5 000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Homer.

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days ten and in the last 365 days sixty-five earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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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: 52 km WNW of Nanwalek, Alaska.

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-152.7983° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	59.4931° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	95.9 km	Depth of the event in kilometers.
Place	52 km WNW of Nanwalek, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-08 07:33:55	Time when the event occurred. UTC/GMT
Updated	2025-10-08 07:36:41	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	automatic	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	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	0.48 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	ak025cwudqus	Id of event.
Event Code	025cwudqus	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak025cwudqus,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.7 mag strikes near Nanwalek in Alaska

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