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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4 quake has struck near Nikolski in Alaska

Posted by admin on August 2, 2025 0 Comments

Earthquake location 53.2646S, -168.8843WA light earthquake magnitude 4 (ml/mb) strikes 36 km N of Nikolski, Alaska (22 miles) on Saturday. Exact location, longitude -168.8843° West, latitude 53.2646° North, depth = 105.534 km. The earthquake was roughly at a depth of 105.534 km (66 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 02:47:56 / 2:47 am (local time epicenter). Event id: us6000qx56. Ids that are associated to the earthquake: ak0259idpwen, us6000qx56. Date and time of earthquake in UTC/GMT: 26/07/25 / 2025-07-26 02:47:56 / July 26, 2025 @ 2:47 am.

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

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. 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: 36 km N of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -168.8843° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.2646° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 105.534 km Depth of the event in kilometers.
Place 36 km N 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 2025-07-26 02:47:56 Time when the event occurred. UTC/GMT
Updated 2025-08-02 21:05:06 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 246 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 ,ak,us, A comma-separated list of network contributors.
Number of Stations Used 48 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.294 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 103 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 us6000qx56 Id of event.
Event Code 6000qx56 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0259idpwen,us6000qx56, A comma-separated list of event ids that are associated to an event.

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