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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.6754698449366 mag has occurred near Unalaska in Alaska

Posted by admin on December 4, 2025 0 Comments

Earthquake location 53.616439819336S, -166.61277770996WA minor earthquake magnitude 3.6754698449366 (ml/mb) has occurred on Friday, 29 km S of Unalaska, Alaska (18 miles). Event ids that are associated to the earthquake: ak2025wxudhg. Id of event: ak2025wxudhg. The temblor was detected at 13:30:10 / 1:30 pm (local time epicenter). Exact time and date of event in UTC/GMT: 21/11/25 / 2025-11-21 13:30:10 / November 21, 2025 @ 1:30 pm. Exact location, longitude -166.61277770996° West, latitude 53.616439819336° North, depth = 73.395881652832 km. The epicenter was at a depth of 73.395881652832 km (46 miles).

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 one hundred and twelve earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world.

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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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 29 km S of Unalaska, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.6754698449366 mb The magnitude for the event.
Longitude -166.61277770996° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.616439819336° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 73.395881652832 km Depth of the event in kilometers.
Place 29 km S of Unalaska, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-11-21 13:30:10 Time when the event occurred. UTC/GMT
Updated 2025-12-04 19:51:18 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 208 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 32 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.20934779942036 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54234597971995 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 185.37427902222 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 ak2025wxudhg Id of event.
Event Code 2025wxudhg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak2025wxudhg, A comma-separated list of event ids that are associated to an event.

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