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Moderate earthquake: M5.6 quake has struck near Unalaska in Alaska


Earthquake location 53.4074S, -167.4568WA moderate earthquake with magnitude 5.6 (ml/mb) was detected on Sunday, 80 km SW of Unalaska, Alaska (50 miles). Date and time of earthquake in UTC/GMT: 26/01/25 / 2025-01-26 22:39:15 / January 26, 2025 @ 10:39 pm. A tsunami warning has been issued near Unalaska in Alaska (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: at00sqpw9c, us6000pmgt, ak02517day8d. Unique identifier: us6000pmgt. The earthquake occurred at a depth of 71.878 km (45 miles). Exact location, longitude -167.4568° West, latitude 53.4074° North, depth = 71.878 km. The temblor was detected at 22:39:15 / 10:39 pm (local time epicenter).

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

How would you describe the shaking?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 80 km SW of Unalaska, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.6 mb The magnitude for the event.
Longitude -167.4568° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.4074° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 71.878 km Depth of the event in kilometers.
Place 80 km SW of Unalaska, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-01-26 22:39:15 Time when the event occurred. UTC/GMT
Updated 2025-01-26 22:55:28 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 15 The total number of felt reports
CDI 4.2 The maximum reported intensity for the event.
MMI 4.357 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 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 489 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 ,at,us,ak, A comma-separated list of network contributors.
Number of Stations Used 81 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.272 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.77 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 82 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 us6000pmgt Id of event.
Event Code 6000pmgt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00sqpw9c,us6000pmgt,ak02517day8d, A comma-separated list of event ids that are associated to an event.

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