Minor earthquake, 3.9 mag strikes near Chignik Lake in Alaska

A minor earthquake magnitude 3.9 (ml/mb) has occurred on Friday, 95 km NNE of Chignik Lake, Alaska (59 miles). Global time and date of event 02/04/16 / 2016-04-02 06:19:40 / April 2, 2016 @ 6:19 am UTC/GMT. Event id: ak13228358. Ids that are associated to the earthquake: ak13228358. Exact location of earthquake, -157.9556° West, 56.9905° North, depth 12.5 km. The earthquake occurred at a depth of 12.5 km (8 miles) below the earth’s surface. The temblor was picked up at 22:19:40 / 10:19 pm (local time epicenter).

Each year there are an estimated 130,000 minor quakes in the world. 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 five, in the past 30 days six and in the last 365 days fifty-six earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

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: 95 km NNE of Chignik Lake, Alaska.

Alaska Chignik Lake

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-157.9556° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.9905° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	12.5 km	Depth of the event in kilometers.
Place	95km NNE 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	2016-04-02 06:19:40	Time when the event occurred. UTC/GMT
Updated	2016-04-02 06:52:04	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	3.66	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	0.76 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	ak13228358	Id of event.
Event Code	13228358	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak13228358,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.9 mag strikes near Chignik Lake in Alaska

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