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Light earthquake 4.7 mag, 5 km NNW of Willow, Alaska

Posted by admin on April 23, 2025 0 Comments

Earthquake location 61.7937S, -150.0573WA light earthquake with magnitude 4.7 (ml/mb) was detected on Wednesday, 5 kilometers (3 miles) from Willow in Alaska. A tsunami warning has been issued near Willow in Alaska (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: ak02556vvgv8, at00sv5ahe. Id of event: ak02556vvgv8. The epicenter of the earthquake was roughly 33.9 km (21 miles) below the earth’s surface. Exact location of event, depth 33.9 km, -150.0573° West, 61.7937° North. Exact time and date of event in UTC/GMT: 23/04/25 / 2025-04-23 00:24:50 / April 23, 2025 @ 12:24 am. The 4.7-magnitude earthquake was detected at 00:24:50 / 12:24 am (local time epicenter).

Closest city/cities/towns to epicentrum/hypocenter was Anchorage, Elmendorf Air Force Base, Eagle River (min 5000 pop). Epicenter of the earthquake was 65 km (40 miles) from Anchorage (c. 291 800 pop), 59 km (36 miles) from Eagle River (c. 24 800 pop), 39 km (25 miles) from Knik-Fairview (c. 14 900 pop), 45 km (28 miles) from Lakes (c. 8 400 pop), 38 km (24 miles) from Tanaina (c. 8 200 pop), 40 km (25 miles) from Wasilla (c. 7 800 pop), 31 km (19 miles) from Meadow Lakes (c. 7 600 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

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. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days four and in the last 365 days fifty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 5 km NNW of Willow, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -150.0573° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.7937° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 33.9 km Depth of the event in kilometers.
Place 5 km NNW of Willow, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-04-23 00:24:50 Time when the event occurred. UTC/GMT
Updated 2025-04-23 00:29:54 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.7 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 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 340 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,at, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.33 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak02556vvgv8 Id of event.
Event Code 02556vvgv8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak02556vvgv8,at00sv5ahe, A comma-separated list of event ids that are associated to an event.

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