Minor earthquake 3.7 mag, 23 km S of Little Sitkin Island, Alaska

A minor earthquake magnitude 3.7 (ml/mb) strikes 23 km S of Little Sitkin Island, Alaska (14 miles) on Friday. The earthquake was roughly at a depth of 107.4 km (67 miles). The 3.7-magnitude earthquake was detected at 01:05:40 / 1:05 am (local time epicenter). Unique identifier: ak18499027. Ids that are associated to the event: ak18499027. Date and time of earthquake in UTC/GMT: 23/02/18 / 2018-02-23 11:05:40 / February 23, 2018 @ 11:05 am. Exact location of earthquake, longitude 178.4669 East, latitude 51.7428 North, depth = 107.4 km.

Earthquakes 3.0 to 4.0 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 three, in the last 10 days six, in the past 30 days fifteen and in the last 365 days one hundred and fifty-five earthquakes of magnitude 3.0 or greater that has struck near.

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How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 23 km S of Little Sitkin Island, Alaska. This data comes from the USGS Earthquake Notification Service.

Alaska Little Sitkin Island

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	178.4669° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.7428° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	107.4 km	Depth of the event in kilometers.
Place	23km S of Little Sitkin 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	2018-02-23 11:05:40	Time when the event occurred. UTC/GMT
Updated	2018-03-02 23:20:31	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	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	211	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	0.54 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	ak18499027	Id of event.
Event Code	18499027	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak18499027,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.7 mag, 23 km S of Little Sitkin Island, Alaska

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