Light earthquake 4.1 mag, 29 km SSW of Denali National Park, Alaska

A light earthquake with magnitude 4.1 (ml/mb) was detected on Monday, 29 km SSW of Denali National Park, Alaska (18 miles). The temblor was detected at 23:28:09 / 11:28 pm (local time epicenter). Exact location of event, longitude -152.04 West, latitude 63.3121 North, depth = 11.2 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: ak025805ddn1. Ids that are associated to the event: ak025805ddn1. The earthquake occurred at a depth of 11.2 km (7 miles) below the earth’s surface. Global time and date of event 23/06/25 / 2025-06-23 23:28:09 / June 23, 2025 @ 11:28 pm UTC/GMT.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days thirty-five earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

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. 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: 29 km SSW of Denali National Park, Alaska.

Alaska Denali National Park

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Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	-152.04° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	63.3121° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	11.2 km	Depth of the event in kilometers.
Place	29 km SSW of Denali National Park, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-06-23 23:28:09	Time when the event occurred. UTC/GMT
Updated	2025-06-23 23:30:05	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	259	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	0.91 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	ak025805ddn1	Id of event.
Event Code	025805ddn1	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak025805ddn1,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4.1 mag, 29 km SSW of Denali National Park, Alaska

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