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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake, 5.5 mag strikes near Adak in Alaska

Posted by admin on November 23, 2025 0 Comments

Earthquake location 51.4112S, -177.0684WA moderate earthquake magnitude 5.5 (ml/mb) has struck on Sunday, 59 km SSW of Adak, Alaska (37 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 08:21:46 / 8:21 am (local time epicenter). The earthquake was roughly at a depth of 54.82 km (34 miles). Event ids that are associated to the earthquake: ak2025xbbjhg, us6000rpxa. Id of event: us6000rpxa. Global time and date of event 23/11/25 / 2025-11-23 08:21:46 / November 23, 2025 @ 8:21 am UTC/GMT. Exact location of earthquake, -177.0684° West, 51.4112° North, depth 54.82 km.

In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days nine and in the last 365 days five hundred and fourty-seven earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 1320 moderate earthquakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

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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: 59 km SSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 5.5 mb The magnitude for the event.
Longitude -177.0684° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.4112° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 54.82 km Depth of the event in kilometers.
Place 59 km SSW of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-11-23 08:21:46 Time when the event occurred. UTC/GMT
Updated 2025-11-23 08:39:58 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 3.8 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 466 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 109 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.366 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.92 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 92 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us6000rpxa Id of event.
Event Code 6000rpxa An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak2025xbbjhg,us6000rpxa, A comma-separated list of event ids that are associated to an event.

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