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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.7 mag, 117 km SE of Old Harbor, Alaska

Posted by admin on September 1, 2025 0 Comments

Earthquake location 56.3707S, -152.1175WA light earthquake with magnitude 4.7 (ml/mb) was detected on Monday, 117 km SE of Old Harbor, Alaska (73 miles). The epicenter of the earthquake was roughly 12 km (7 miles) below the earth’s surface. Exact location of event, longitude -152.1175 West, latitude 56.3707 North, depth = 12 km. Exact time and date of earthquake 01/09/25 / 2025-09-01 11:45:49 / September 1, 2025 @ 11:45 am UTC/GMT. The 4.7-magnitude earthquake has occurred at 11:45:49 / 11:45 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: ak025b7py6gc. Ids that are associated to the event: ak025b7py6gc.

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

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 117 km SE of Old Harbor, 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 -152.1175° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.3707° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 117 km SE of Old Harbor, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-09-01 11:45:49 Time when the event occurred. UTC/GMT
Updated 2025-09-01 11:57:46 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 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, 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 0.82 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 ak025b7py6gc Id of event.
Event Code 025b7py6gc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak025b7py6gc, A comma-separated list of event ids that are associated to an event.

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