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

A minor earthquake magnitude 3.9 (ml/mb) has struck on Thursday, 12 km NNW of Chignik Lake, Alaska (7 miles). The epicenter was at a depth of 127.17 km (79 miles). All ids that are associated to the event: ak13502483, us10005c85. Unique identifier: us10005c85. Global date and time of event UTC/GMT: 28/04/16 / 2016-04-28 19:15:15 / April 28, 2016 @ 7:15 pm. The temblor was picked up at 11:15:15 / 11:15 am (local time epicenter). Exact location, longitude -158.8386° West, latitude 56.3587° North, depth = 127.17 km.

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

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 12 km NNW of Chignik Lake, Alaska.

Alaska Chignik Lake

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-158.8386° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.3587° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	127.17 km	Depth of the event in kilometers.
Place	12km NNW of Chignik Lake, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2016-04-28 19:15:15	Time when the event occurred. UTC/GMT
Updated	2016-05-26 13:02:27	Time when the event was most recently updated. UTC/GMT
Timezone offset	-480	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	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	234	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	,ak,us,	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	0.229	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.95 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	118	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us10005c85	Id of event.
Event Code	10005c85	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak13502483,us10005c85,	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 Chignik Lake in Alaska

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