Moderate earthquake, 5.2 mag was detected near Nikolski in Alaska

A moderate earthquake with magnitude 5.2 (ml/mb) was reported 79 km SW of Nikolski, Alaska (49 miles) on Saturday. The earthquake was roughly at a depth of 33 km (21 miles). A tsunami warning has been issued near Nikolski in Alaska (Does not indicate if a tsunami actually did or will exist). Id of earthquake: at00t26pfw. Event ids that are associated: at00t26pfw. The 5.2-magnitude earthquake was detected at 20:40:44 / 8:40 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 06/09/25 / 2025-09-06 20:40:44 / September 6, 2025 @ 8:40 pm. Exact location of event, depth 33 km, -169.537° West, 52.36° North.

There are an estimated 1320 moderate quakes in the world each year. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one, in the last 10 days thirteen, in the past 30 days seventeen and in the last 365 days one hundred and eighty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 79 km SW of Nikolski, Alaska. This information comes from the USGS Earthquake Notification Service.

Alaska Nikolski

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Parameter	Value	Description
Magnitude	5.2 mb	The magnitude for the event.
Longitude	-169.537° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.36° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	33 km	Depth of the event in kilometers.
Place	79 km SW 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 20:40:44	Time when the event occurred. UTC/GMT
Updated	2025-09-06 20:44:09	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	1	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	416	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	at	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,at,	A comma-separated list of network contributors.
Number of Stations Used	27	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.439999	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.15 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	212.399983008	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	Mi	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	at00t26pfw	Id of event.
Event Code	00t26pfw	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,at00t26pfw,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.2 mag was detected near Nikolski in Alaska

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