Light earthquake, 4.2 mag was detected near Sand Point in Alaska

A light earthquake with magnitude 4.2 (ml/mb) was detected on Wednesday, 87 km SSE of Sand Point, Alaska (54 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.2-magnitude earthquake has occurred at 21:39:30 / 9:39 pm (local time epicenter). Exact location of event, longitude -160.2134 West, latitude 54.5661 North, depth = 19.9 km. The earthquake was roughly at a depth of 19.9 km (12 miles). Event id: ak025925lw7q. Ids that are associated to the earthquake: ak025925lw7q. Date and time of earthquake in UTC/GMT: 16/07/25 / 2025-07-16 21:39:30 / July 16, 2025 @ 9:39 pm.

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

Did you feel anything?

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. 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: 87 km SSE of Sand Point, Alaska.

Alaska Sand Point

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-160.2134° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	54.5661° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	19.9 km	Depth of the event in kilometers.
Place	87 km SSE of Sand Point, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-07-16 21:39:30	Time when the event occurred. UTC/GMT
Updated	2025-07-16 21:58:23	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	271	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	0.55 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	ak025925lw7q	Id of event.
Event Code	025925lw7q	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak025925lw7q,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag was detected near Sand Point in Alaska

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