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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Nikolski in Alaska

Posted by admin on September 13, 2025 0 Comments

Earthquake location 51.8529S, -170.7586WA light earthquake with magnitude 4.5 (ml/mb) was reported 176 km SW of Nikolski, Alaska (109 miles) on Saturday. The earthquake was roughly at a depth of 36.454 km (23 miles). Date and time of earthquake in UTC/GMT: 13/09/25 / 2025-09-13 22:29:57 / September 13, 2025 @ 10:29 pm. Id of earthquake: us7000qw1s. Event ids that are associated: us7000qw1s, ak025brqupk4. The 4.5-magnitude earthquake has occurred at 22:29:57 / 10:29 pm (local time epicenter). Exact location of event, longitude -170.7586 West, latitude 51.8529 North, depth = 36.454 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been one, in the last 10 days nine, in the past 30 days sixteen and in the last 365 days one hundred and sixty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 176 km SW of Nikolski, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -170.7586° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.8529° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 36.454 km Depth of the event in kilometers.
Place 176 km SW of Nikolski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-09-13 22:29:57 Time when the event occurred. UTC/GMT
Updated 2025-09-13 23:19:29 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 2.419 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 312 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 74 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.617 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.04 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 138 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 us7000qw1s Id of event.
Event Code 7000qw1s An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qw1s,ak025brqupk4, A comma-separated list of event ids that are associated to an event.

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