Minor earthquake, 3.5 mag strikes near Ninilchik in Alaska

A minor earthquake magnitude 3.5 (ml/mb) has struck on Thursday, 14 kilometers (9 miles) from Ninilchik in Alaska. The 3.5-magnitude earthquake has occurred at 20:40:38 / 8:40 pm (local time epicenter). The earthquake occurred at a depth of 49.6 km (31 miles) below the earth’s surface. Exact location of event, depth 49.6 km, -151.4623° West, 59.9711° North. All ids that are associated to the event: ak0254lpw12i. Unique identifier: ak0254lpw12i. Date and time of earthquake in UTC/GMT: 10/04/25 / 2025-04-10 20:40:38 / April 10, 2025 @ 8:40 pm.

Nearest cities/city/towns to hypocenter/epicentrum was Sterling, Kenai, Kalifornsky (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). The epicenter was 51 km (31 miles) from Kalifornsky (c. 7 900 pop), 66 km (41 miles) from Kenai (c. 7 100 pop), 74 km (46 miles) from Sterling (c. 5 600 pop), 37 km (23 miles) from Homer (c. 5 000 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days fifty-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.

Did you feel it?

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: 14 km SE of Ninilchik, Alaska.

More information

Parameter	Value	Description
Magnitude	3.5 mb	The magnitude for the event.
Longitude	-151.4623° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	59.9711° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	49.6 km	Depth of the event in kilometers.
Place	14 km SE of Ninilchik, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-04-10 20:40:38	Time when the event occurred. UTC/GMT
Updated	2025-04-10 20:42:10	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	188	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	0.51 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	ak0254lpw12i	Id of event.
Event Code	0254lpw12i	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak0254lpw12i,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.5 mag strikes near Ninilchik in Alaska

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