Minor earthquake, 3.9 mag has occurred near Little Sitkin Island in Alaska

A minor earthquake with magnitude 3.9 (ml/mb) was reported 11 km SSW of Little Sitkin Island, Alaska (7 miles) on Sunday. The epicenter was at a depth of 114.62 km (71 miles). The 3.9-magnitude earthquake has occurred at 10:14:23 / 10:14 am (local time epicenter). Date and time of earthquake in UTC/GMT: 22/04/18 / 2018-04-22 20:14:23 / April 22, 2018 @ 8:14 pm. Exact location, longitude 178.4564° East, latitude 51.8455° North, depth = 114.62 km. Event id: us1000ds9r. Ids that are associated to the earthquake: ak19253909, us1000ds9r.

In the past 24 hours, there have been nine, in the last 10 days nine, in the past 30 days thirteen and in the last 365 days one hundred and fifty earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

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How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 11 km SSW of Little Sitkin Island, Alaska. This information comes from the USGS Earthquake Notification Service.

Alaska Little Sitkin Island

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	178.4564° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.8455° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	114.62 km	Depth of the event in kilometers.
Place	11km SSW 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	2018-04-22 20:14:23	Time when the event occurred. UTC/GMT
Updated	2018-05-20 16:47:38	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	234	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ak,us,	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	0.108	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.18 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	152	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us1000ds9r	Id of event.
Event Code	1000ds9r	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak19253909,us1000ds9r,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.9 mag has occurred near Little Sitkin Island in Alaska

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