Light earthquake, 4.8 mag strikes near Sand Point in Alaska

A light earthquake with magnitude 4.8 (ml/mb) was detected on Saturday, 128 km SSE of Sand Point, Alaska (80 miles). Exact location of earthquake, longitude -159.9359 West, latitude 54.2289 North, depth = 31.4 km. The temblor was reported at 15:09:27 / 3:09 pm (local time epicenter). A tsunami warning has been issued near Sand Point in Alaska (Does not indicate if a tsunami actually did or will exist). Unique identifier: ak0256atm1he. Ids that are associated to the event: at00swevfr, ak0256atm1he. The earthquake was roughly at a depth of 31.4 km (20 miles). Date and time of earthquake in UTC/GMT: 17/05/25 / 2025-05-17 15:09:27 / May 17, 2025 @ 3:09 pm.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days eighteen and in the last 365 days eighty-eight earthquakes of magnitude 3.0 or greater that has struck near.

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. 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: 128 km SSE of Sand Point, Alaska.

Alaska Sand Point

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Parameter	Value	Description
Magnitude	4.8 mb	The magnitude for the event.
Longitude	-159.9359° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	54.2289° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	31.4 km	Depth of the event in kilometers.
Place	128 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	2025-05-17 15:09:27	Time when the event occurred. UTC/GMT
Updated	2025-05-17 15:25:35	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	1	The total number of felt reports
CDI	2	The maximum reported intensity for the event.
MMI	3.293	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	355	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	,at,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	0.9 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	ak0256atm1he	Id of event.
Event Code	0256atm1he	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,at00swevfr,ak0256atm1he,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.8 mag strikes near Sand Point in Alaska

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