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Moderate earthquake, 5.8 mag has occurred near Adak in Alaska


Earthquake location 50.933S, -177.4045WA moderate earthquake magnitude 5.8 (ml/mb) strikes 117 km SSW of Adak, Alaska (73 miles) on Sunday. The earthquake occurred at a depth of 12.366 km (8 miles). Event id: us7000nx4k. Ids that are associated to the earthquake: at00so714x, us7000nx4k. The 5.8-magnitude earthquake was detected at 21:02:50 / 9:02 pm (local time epicenter). A tsunami warning has been issued near Adak in Alaska (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 08/12/24 / 2024-12-08 21:02:50 / December 8, 2024 @ 9:02 pm. Exact location, longitude -177.4045° West, latitude 50.933° North, depth = 12.366 km.

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

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 117 km SSW of Adak, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.8 mb The magnitude for the event.
Longitude -177.4045° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.933° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12.366 km Depth of the event in kilometers.
Place 117 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 2024-12-08 21:02:50 Time when the event occurred. UTC/GMT
Updated 2024-12-08 21:23:08 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 2.866 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 518 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, A comma-separated list of network contributors.
Number of Stations Used 114 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.935 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 128 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 us7000nx4k Id of event.
Event Code 7000nx4k An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00so714x,us7000nx4k, A comma-separated list of event ids that are associated to an event.

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