Minor earthquake 3.1 mag, 90 km NNW of Chirikof Island, Alaska

A minor earthquake with magnitude 3.1 (ml/mb) was reported 90 km NNW of Chirikof Island, Alaska (56 miles) on Sunday. Exact location of earthquake, longitude -156.3883 West, latitude 56.5125 North, depth = 72.5 km. The epicenter was at a depth of 72.5 km (45 miles). Exact time and date of event in UTC/GMT: 04/10/15 / 2015-10-04 12:09:54 / October 4, 2015 @ 12:09 pm. The 3.1-magnitude earthquake was detected at 02:09:54 / 2:09 am (local time epicenter). Id of earthquake: ak11730334. Event ids that are associated: ak11730334.

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

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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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 90 km NNW of Chirikof Island, Alaska. This data comes from the USGS Earthquake Notification Service.

Chirik

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Parameter	Value	Description
Magnitude	3.1 mb	The magnitude for the event.
Longitude	-156.3883° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.5125° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	72.5 km	Depth of the event in kilometers.
Place	90km NNW of Chirikof 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	2015-10-04 12:09:54	Time when the event occurred. UTC/GMT
Updated	2015-10-04 13:02:08	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	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	148	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	0.71 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	ak11730334	Id of event.
Event Code	11730334	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak11730334,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.1 mag, 90 km NNW of Chirikof Island, Alaska

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