Minor earthquake, 3.5 mag was detected near Chignik Lake in Alaska

A minor earthquake magnitude 3.5 (ml/mb) strikes 143 km NE of Chignik Lake, Alaska (89 miles) on Saturday. The epicenter of the earthquake was roughly 8.7 km (5 miles) below the earth’s surface. Id of earthquake: ak11759800. Event ids that are associated: ak11759800. Exact location of event, depth 8.7 km, -156.8509° West, 57.0013° North. Date and time of earthquake in UTC/GMT: 31/10/15 / 2015-10-31 10:45:32 / October 31, 2015 @ 10:45 am. The temblor was reported at 02:45:32 / 2:45 am (local time epicenter).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days six and in the last 365 days seventy-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. Each 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. 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: 143 km NE of Chignik Lake, Alaska.

Alaska Chignik Lake

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Parameter	Value	Description
Magnitude	3.5 mb	The magnitude for the event.
Longitude	-156.8509° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	57.0013° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8.7 km	Depth of the event in kilometers.
Place	143km NE 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	2015-10-31 10:45:32	Time when the event occurred. UTC/GMT
Updated	2015-10-31 11:39:50	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	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	188	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	0.98 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	ak11759800	Id of event.
Event Code	11759800	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak11759800,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.5 mag was detected near Chignik Lake in Alaska

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