Minor earthquake, 3.7 mag has occurred near Sand Point in Alaska

A minor earthquake with magnitude 3.7 (ml/mb) was detected on Monday, 115 km SSE of Sand Point, Alaska (71 miles). The epicenter was at a depth of 36.613 km (23 miles). Exact time and date of event in UTC/GMT: 21/07/25 / 2025-07-21 08:28:02 / July 21, 2025 @ 8:28 am. Unique identifier: us7000qe7z. Ids that are associated to the event: us7000qe7z, ak0259a7hkzp. Exact location, longitude -159.9092° West, latitude 54.3541° North, depth = 36.613 km. The 3.7-magnitude earthquake has occurred at 08:28:02 / 8:28 am (local time epicenter).

Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been five, in the last 10 days one hundred and seventy-seven, in the past 30 days one hundred and eighty and in the last 365 days two hundred and eighty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby.

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Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 115 km SSE of Sand Point, Alaska.

Alaska Sand Point

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-159.9092° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	54.3541° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	36.613 km	Depth of the event in kilometers.
Place	115 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	2025-07-21 08:28:02	Time when the event occurred. UTC/GMT
Updated	2025-07-21 08:44:51	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	2.38	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	211	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	31	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.513	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.76 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	195	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	us7000qe7z	Id of event.
Event Code	7000qe7z	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000qe7z,ak0259a7hkzp,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.7 mag has occurred near Sand Point in Alaska

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