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Light earthquake: M4 quake has struck near Aleknagik in Alaska

Posted by admin on September 27, 2025 0 Comments

Earthquake location 60.252S, -159.0656WA light earthquake magnitude 4 (ml/mb) has occurred on Saturday, 111 km NNW of Aleknagik, Alaska (69 miles). Global date and time of event UTC/GMT: 27/09/25 / 2025-09-27 06:38:58 / September 27, 2025 @ 6:38 am. The earthquake occurred at a depth of 4.1 km (3 miles). The 4-magnitude earthquake has occurred at 06:38:58 / 6:38 am (local time epicenter). Exact location of earthquake, longitude -159.0656 West, latitude 60.252 North, depth = 4.1 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: ak025cemwkp2. Ids that are associated to the earthquake: us6000rdae, ak025cemwkp2.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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 three earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 13,000 light earthquakes in the world.

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 111 km NNW of Aleknagik, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -159.0656° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.252° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4.1 km Depth of the event in kilometers.
Place 111 km NNW of Aleknagik, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-09-27 06:38:58 Time when the event occurred. UTC/GMT
Updated 2025-09-27 06:46:28 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 3.951 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 246 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 ,us,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 0.38 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 ak025cemwkp2 Id of event.
Event Code 025cemwkp2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rdae,ak025cemwkp2, A comma-separated list of event ids that are associated to an event.

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