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Moderate earthquake, 5.6 mag has occurred near Adak in Alaska

Posted by admin on March 20, 2025 0 Comments

Earthquake location 51.0516S, -176.0595WA moderate earthquake with magnitude 5.6 (ml/mb) was detected on Thursday, 99 km SSE of Adak, Alaska (62 miles). Event id: us6000pzwb. Ids that are associated to the earthquake: us6000pzwb, at00sten46, ak0253mq09d9. The temblor was reported at 04:28:54 / 4:28 am (local time epicenter). Exact location of earthquake, longitude -176.0595 West, latitude 51.0516 North, depth = 35 km. A tsunami warning has been issued near Adak in Alaska (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 20/03/25 / 2025-03-20 04:28:54 / March 20, 2025 @ 4:28 am. The epicenter was at a depth of 35 km (22 miles).

In the past 24 hours, there have been four, in the last 10 days five, in the past 30 days eleven and in the last 365 days three hundred and eighteen 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. Every year there are an estimated 1320 moderate earthquakes in the world.

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: 99 km SSE of Adak, Alaska. This data 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 -176.0595° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.0516° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 99 km SSE 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 2025-03-20 04:28:54 Time when the event occurred. UTC/GMT
Updated 2025-03-20 04:49:08 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 4.3 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 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 483 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,at,ak, A comma-separated list of network contributors.
Number of Stations Used 96 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.044 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 149 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 us6000pzwb Id of event.
Event Code 6000pzwb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000pzwb,at00sten46,ak0253mq09d9, A comma-separated list of event ids that are associated to an event.

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