Minor earthquake: M3.1 quake has struck near Unimak Island region, Alaska

A minor earthquake with magnitude 3.1 (ml/mb) was detected on Wednesday, Unimak Island region, Alaska (0 miles). The earthquake occurred at a depth of 21.7 km (13 miles). The 3.1-magnitude earthquake was detected at 23:46:23 / 11:46 pm (local time epicenter). Global date and time of event UTC/GMT: 30/05/18 / 2018-05-30 23:46:23 / May 30, 2018 @ 11:46 pm. Event ids that are associated to the earthquake: ak19694467. Id of event: ak19694467. Exact location of event, longitude -163.6426 West, latitude 53.3488 North, depth = 21.7 km.

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days twenty, in the past 30 days thirty-two and in the last 365 days one hundred and fourty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: Unimak Island region, Alaska.

Alaska Unimak Island region

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Parameter	Value	Description
Magnitude	3.1 mb	The magnitude for the event.
Longitude	-163.6426° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.3488° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	21.7 km	Depth of the event in kilometers.
Place	Unimak Island region, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-05-30 23:46:23	Time when the event occurred. UTC/GMT
Updated	2018-06-11 01:22:37	Time when the event was most recently updated. UTC/GMT
Timezone offset		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	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	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	0.55 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	ak19694467	Id of event.
Event Code	19694467	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak19694467,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.1 quake has struck near Unimak Island region, Alaska

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