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Light earthquake 4.4 mag, 77 km SW of Nikolski, Alaska

Posted by admin on September 4, 2025 0 Comments

Earthquake location 52.3776S, -169.5462WA light earthquake with magnitude 4.4 (ml/mb) was reported 77 km SW of Nikolski, Alaska (48 miles) on Thursday. The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface. Event id: us7000qtnm. Ids that are associated to the earthquake: us7000qtnm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -169.5462° West, 52.3776° North, depth 35 km. Exact time and date of event in UTC/GMT: 04/09/25 / 2025-09-04 00:29:44 / September 4, 2025 @ 12:29 am. The temblor was picked up at 00:29:44 / 12:29 am (local time epicenter).

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

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 77 km SW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -169.5462° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.3776° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 77 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 2025-09-04 00:29:44 Time when the event occurred. UTC/GMT
Updated 2025-09-04 00:43:21 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 298 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, A comma-separated list of network contributors.
Number of Stations Used 44 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.729 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 181 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 us7000qtnm Id of event.
Event Code 7000qtnm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qtnm, A comma-separated list of event ids that are associated to an event.

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