Minor earthquake, 3.8 mag strikes near Nikolski in Alaska

A minor earthquake magnitude 3.8 (ml/mb) has struck on Saturday, 157 km SW of Nikolski, Alaska (98 miles). The earthquake occurred at a depth of 36.275 km (23 miles) below the earth’s surface. Id of earthquake: us7000pma9. Event ids that are associated: us7000pma9, ak0253eo5b43. Global date and time of event UTC/GMT: 15/03/25 / 2025-03-15 17:43:20 / March 15, 2025 @ 5:43 pm. Exact location of event, longitude -170.2628 West, latitude 51.8103 North, depth = 36.275 km. The temblor was picked up at 17:43:20 / 5:43 pm (local time epicenter).

In the past 24 hours, there have been eight, in the last 10 days ten, in the past 30 days twenty-one and in the last 365 days one hundred and eighty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year.

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How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 157 km SW of Nikolski, Alaska.

Alaska Nikolski

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Parameter	Value	Description
Magnitude	3.8 mb	The magnitude for the event.
Longitude	-170.2628° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.8103° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	36.275 km	Depth of the event in kilometers.
Place	157 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	2025-03-15 17:43:20	Time when the event occurred. UTC/GMT
Updated	2025-04-09 18:40:31	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	1.166	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	222	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,ak,	A comma-separated list of network contributors.
Number of Stations Used	60	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.032	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.86 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	177	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	us7000pma9	Id of event.
Event Code	7000pma9	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pma9,ak0253eo5b43,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.8 mag strikes near Nikolski in Alaska

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