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Moderate earthquake, 5.8 mag strikes near Nikolski in Alaska

Posted by admin on September 3, 2025 0 Comments

Earthquake location 52.177S, -169.531WA moderate earthquake magnitude 5.8 (ml/mb) has occurred on Wednesday, 96 km SSW of Nikolski, Alaska (60 miles). Event ids that are associated to the earthquake: at00t2168g. Id of event: at00t2168g. Date and time of earthquake in UTC/GMT: 03/09/25 / 2025-09-03 20:57:52 / September 3, 2025 @ 8:57 pm. The earthquake occurred at a depth of 33 km (21 miles) below the earth’s surface. Exact location of earthquake, -169.531° West, 52.177° North, depth 33 km. A tsunami warning has been issued near Nikolski in Alaska (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 20:57:52 / 8:57 pm (local time epicenter).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days eight and in the last 365 days one hundred and seventy-seven earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 1320 moderate earthquakes in the world.

Did you feel the quake?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 96 km SSW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 5.8 mb The magnitude for the event.
Longitude -169.531° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.177° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 33 km Depth of the event in kilometers.
Place 96 km SSW 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 2025-09-03 20:57:52 Time when the event occurred. UTC/GMT
Updated 2025-09-03 21:02:20 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 1 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 518 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 45 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.8956203 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 205.199983584 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00t2168g Id of event.
Event Code 00t2168g An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00t2168g, A comma-separated list of event ids that are associated to an event.

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