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Light earthquake: M4.7 quake has struck near Cooper Landing in Alaska


Earthquake location 60.7302S, -150.0067WA light earthquake magnitude 4.7 (ml/mb) has struck on Tuesday, 28 kilometers (17 miles) from Cooper Landing in Alaska. Global time and date of event 29/04/25 / 2025-04-29 08:03:40 / April 29, 2025 @ 8:03 am UTC/GMT. Id of earthquake: ak0255gxqhup. Event ids that are associated: ak0255gxqhup, at00svgzq4. The earthquake occurred at a depth of 34.5 km (21 miles) below the earth’s surface. The temblor was picked up at 08:03:40 / 8:03 am (local time epicenter). Exact location of event, depth 34.5 km, -150.0067° West, 60.7302° North. A tsunami warning has been issued near Cooper Landing in Alaska (Does not indicate if a tsunami actually did or will exist).

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Wasilla, Knik-Fairview, Kalifornsky (min 5000 pop). Epicenter of the earthquake was 55 km (34 miles) from Anchorage (c. 291 800 pop), 70 km (43 miles) from Eagle River (c. 24 800 pop), 90 km (56 miles) from Knik-Fairview (c. 14 900 pop), 78 km (49 miles) from Kalifornsky (c. 7 900 pop), 99 km (62 miles) from Wasilla (c. 7 800 pop), 71 km (44 miles) from Kenai (c. 7 100 pop), 62 km (39 miles) from Elmendorf Air Force Base (c. 6 600 pop).

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

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 28 km NNW of Cooper Landing, 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 -150.0067° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.7302° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 34.5 km Depth of the event in kilometers.
Place 28 km NNW of Cooper Landing, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-04-29 08:03:40 Time when the event occurred. UTC/GMT
Updated 2025-04-29 08:07:01 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 2 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 0.62 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 ak0255gxqhup Id of event.
Event Code 0255gxqhup An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0255gxqhup,at00svgzq4, A comma-separated list of event ids that are associated to an event.

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