Minor earthquake: M3.9 quake has struck near Unalaska in Alaska

A minor earthquake magnitude 3.9 (ml/mb) strikes 66 km SSE of Unalaska, Alaska (41 miles) on Tuesday. The earthquake occurred at a depth of 31.56 km (20 miles) below the earth’s surface. The temblor was reported at 04:28:13 / 4:28 am (local time epicenter). Global date and time of event UTC/GMT: 10/01/17 / 2017-01-10 15:28:13 / January 10, 2017 @ 3:28 pm. Event id: us10007sd3. Ids that are associated to the earthquake: ak15059900, us10007sd3. Exact location of earthquake, -166.2736° West, 53.2944° North, depth 31.56 km.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days eight and in the last 365 days one hundred and fourteen earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 130,000 minor earthquakes in the world.

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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: 66 km SSE of Unalaska, Alaska.

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-166.2736° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.2944° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	31.56 km	Depth of the event in kilometers.
Place	66km SSE of Unalaska, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-01-10 15:28:13	Time when the event occurred. UTC/GMT
Updated	2017-01-10 20:42:52	Time when the event was most recently updated. UTC/GMT
Timezone offset	-660	Timezone offset from UTC in minutes at the event epicenter.
Felt	2	The total number of felt reports
CDI	3.4	The maximum reported intensity for the event.
MMI	3.19	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	235	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	0.568	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.11 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	157	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	us10007sd3	Id of event.
Event Code	10007sd3	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak15059900,us10007sd3,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.9 quake has struck near Unalaska in Alaska

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