Moderate earthquake, 5.6 mag strikes near Adak in Alaska

A moderate earthquake magnitude 5.6 (ml/mb) has occurred on Monday, 116 km SW of Adak, Alaska (72 miles). The temblor was picked up at 16:31:45 / 4:31 pm (local time epicenter). All ids that are associated to the event: ak024ft6l28c. Unique identifier: ak024ft6l28c. Exact location of event, depth 11.5 km, -177.5752° West, 51.0113° North. Global date and time of event UTC/GMT: 09/12/24 / 2024-12-09 16:31:45 / December 9, 2024 @ 4:31 pm. 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 11.5 km (7 miles).

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

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Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 116 km SW of Adak, Alaska.

Adak Alaska

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Parameter	Value	Description
Magnitude	5.6 mb	The magnitude for the event.
Longitude	-177.5752° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.0113° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	11.5 km	Depth of the event in kilometers.
Place	116 km SW 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	2024-12-09 16:31:45	Time when the event occurred. UTC/GMT
Updated	2024-12-09 16:39:45	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	6.136	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	482	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	ak	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ak,	A comma-separated list of network contributors.
Number of Stations Used		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance		Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.94 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap		The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	ak024ft6l28c	Id of event.
Event Code	024ft6l28c	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak024ft6l28c,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.6 mag strikes near Adak in Alaska

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