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Light earthquake: M4.5450504911262 quake has struck near Chignik in Alaska

Posted by admin on December 3, 2025 0 Comments

Earthquake location 56.009189605713S, -157.20318603516WA light earthquake with magnitude 4.5450504911262 (ml/mb) was detected on Wednesday, 81 km ESE of Chignik, Alaska (50 miles). Exact time and date of earthquake 03/12/25 / 2025-12-03 13:17:31 / December 3, 2025 @ 1:17 pm UTC/GMT. The temblor was picked up at 13:17:31 / 1:17 pm (local time epicenter). The epicenter was at a depth of 1.5174070596695 km (1 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -157.20318603516° West, 56.009189605713° North, depth 1.5174070596695 km. Event ids that are associated to the earthquake: ak2025xtukzj. Id of event: ak2025xtukzj.

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days eight and in the last 365 days thirty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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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: 81 km ESE of Chignik, Alaska.

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More information

Parameter Value Description
Magnitude 4.5450504911262 mb The magnitude for the event.
Longitude -157.20318603516° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.009189605713° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.5174070596695 km Depth of the event in kilometers.
Place 81 km ESE of Chignik, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-12-03 13:17:31 Time when the event occurred. UTC/GMT
Updated 2025-12-03 13:20:00 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 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 318 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 83 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.80486059188843 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.70171958419634 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 128.75925445557 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 ak2025xtukzj Id of event.
Event Code 2025xtukzj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak2025xtukzj, A comma-separated list of event ids that are associated to an event.

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