Minor earthquake, 3.7 mag was detected near Unalaska in Alaska

A minor earthquake with magnitude 3.7 (ml/mb) was detected on Friday, 43 km SSE of Unalaska, Alaska (27 miles). Exact location of earthquake, longitude -166.2682 West, latitude 53.5124 North, depth = 85.71 km. The temblor was reported at 08:20:55 / 8:20 am (local time epicenter). Id of earthquake: us1000eguw. Event ids that are associated: us1000eguw. Exact time and date of earthquake 01/06/18 / 2018-06-01 17:20:55 / June 1, 2018 @ 5:20 pm UTC/GMT. The earthquake was roughly at a depth of 85.71 km (53 miles).

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days seven and in the last 365 days ninety-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.

Questions or comments?

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. 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: 43 km SSE of Unalaska, Alaska.

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-166.2682° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.5124° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	85.71 km	Depth of the event in kilometers.
Place	43km 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	2018-06-01 17:20:55	Time when the event occurred. UTC/GMT
Updated	2018-06-01 18:41:24	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	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	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,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	0.361	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.34 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	183	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	us1000eguw	Id of event.
Event Code	1000eguw	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000eguw,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.7 mag was detected near Unalaska in Alaska

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