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Light earthquake, 4 mag was detected near Rat Islands, Aleutian Islands, Alaska

Posted by admin on May 23, 2025 0 Comments

Earthquake location 51.6416S, 178.4459WA light earthquake with magnitude 4 (ml/mb) was reported Rat Islands, Aleutian Islands, Alaska (0 miles) on Friday. Exact time and date of earthquake 23/05/25 / 2025-05-23 04:38:38 / May 23, 2025 @ 4:38 am UTC/GMT. Exact location, longitude 178.4459° East, latitude 51.6416° North, depth = 72.768 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 72.768 km (45 miles). Event id: us7000q10h. Ids that are associated to the earthquake: us7000q10h, ak0256kkgldv. The 4-magnitude earthquake was detected at 04:38:38 / 4:38 am (local time epicenter).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days eleven and in the last 365 days one hundred and seven earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: Rat Islands, Aleutian Islands, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 178.4459° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.6416° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 72.768 km Depth of the event in kilometers.
Place Rat Islands, Aleutian Islands, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-05-23 04:38:38 Time when the event occurred. UTC/GMT
Updated 2025-05-23 05:04:17 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 1.76 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 ,us,ak, A comma-separated list of network contributors.
Number of Stations Used 47 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.324 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 179 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 us7000q10h Id of event.
Event Code 7000q10h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000q10h,ak0256kkgldv, A comma-separated list of event ids that are associated to an event.

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