Minor earthquake: M3.4 quake has struck near Nikolski in Alaska

A minor earthquake magnitude 3.4 (ml/mb) has occurred on Wednesday, 39 km ESE of Nikolski, Alaska (24 miles). The temblor was picked up at 23:06:13 / 11:06 pm (local time epicenter). The earthquake occurred at a depth of 48.556 km (30 miles). Exact location of event, longitude -168.2994 West, latitude 52.8324 North, depth = 48.556 km. Global date and time of event UTC/GMT: 23/07/25 / 2025-07-23 23:06:13 / July 23, 2025 @ 11:06 pm. Event id: us6000qzzm. Ids that are associated to the earthquake: us6000qzzm.

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 39 km ESE of Nikolski, Alaska.

Alaska Nikolski

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Parameter	Value	Description
Magnitude	3.4 mb	The magnitude for the event.
Longitude	-168.2994° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.8324° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	48.556 km	Depth of the event in kilometers.
Place	39 km ESE 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	2025-07-23 23:06:13	Time when the event occurred. UTC/GMT
Updated	2025-08-11 22:53:22	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	178	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	18	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.364	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.24 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	us6000qzzm	Id of event.
Event Code	6000qzzm	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000qzzm,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.4 quake has struck near Nikolski in Alaska

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