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Minor earthquake: M3.9 quake has struck near Nikiski in Alaska

Posted by admin on December 31, 2018 0 Comments

A minor earthquake magnitude 3.9 (ml/mb) strikes 47 kilometers (29 miles) from Nikiski in Alaska on Monday. The 3.9-magnitude earthquake was detected at 01:31:33 / 1:31 am (local time epicenter). Global time and date of event 31/12/18 / 2018-12-31 10:31:33 / December 31, 2018 @ 10:31 am UTC/GMT. Event id: ak20608427. Ids that are associated to the earthquake: ak20608427. Exact location of earthquake, longitude -151.1252 West, latitude 61.1112 North, depth = 70.9 km. The epicenter was at a depth of 70.9 km (44 miles).

Epicenter of the event was 67 km (41 miles) from Anchorage (c. 291 800 pop), 87 km (54 miles) from Eagle River (c. 24 800 pop), 78 km (48 miles) from Kalifornsky (c. 7 900 pop), 62 km (39 miles) from Kenai (c. 7 100 pop), 82 km (51 miles) from Elmendorf Air Force Base (c. 6 600 pop), 67 km (41 miles) from Sterling (c. 5 600 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Eagle River, Elmendorf Air Force Base, Kalifornsky. Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been five, in the last 10 days twenty-one, in the past 30 days one hundred and seventy-seven and in the last 365 days four hundred and seventy-six earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel anything?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 47 km N of Nikiski, Alaska.

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-151.1252° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.1112° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	70.9 km	Depth of the event in kilometers.
Place	47km N of Nikiski, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-12-31 10:31:33	Time when the event occurred. UTC/GMT
Updated	2018-12-31 10:36:06	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	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	automatic	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	234	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	0.49 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	ak20608427	Id of event.
Event Code	20608427	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak20608427,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.9 quake has struck near Nikiski in Alaska

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