Minor earthquake: M2.9 quake has struck near Semisopochnoi Island in Alaska

A minor earthquake magnitude 2.9 (ml/mb) strikes 92 km SSW of Semisopochnoi Island, Alaska (57 miles) on Sunday. Date and time of earthquake in UTC/GMT: 12/12/16 / 2016-12-12 09:46:21 / December 12, 2016 @ 9:46 am. Exact location of earthquake, 179.1032° East, 51.1781° North, depth 34.6 km. The temblor was detected at 23:46:21 / 11:46 pm (local time epicenter). Event ids that are associated to the earthquake: ak14715362. Id of event: ak14715362. The epicenter of the earthquake was roughly 34.6 km (21 miles) below the earth’s surface.

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days four, in the past 30 days thirty-three and in the last 365 days one hundred and fourty-two earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 92 km SSW of Semisopochnoi Island, Alaska.

Alaska Semisopochnoi Island

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Parameter	Value	Description
Magnitude	2.9 mb	The magnitude for the event.
Longitude	179.1032° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.1781° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	34.6 km	Depth of the event in kilometers.
Place	92km SSW of Semisopochnoi Island, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2016-12-12 09:46:21	Time when the event occurred. UTC/GMT
Updated	2016-12-15 00:06:29	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	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		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	129	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	0.24 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	ak14715362	Id of event.
Event Code	14715362	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak14715362,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M2.9 quake has struck near Semisopochnoi Island in Alaska

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