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

A minor earthquake magnitude 3.9 (ml/mb) strikes 121 km S of Nikolski, Alaska (75 miles) on Tuesday. Event id: us20003111. Ids that are associated to the earthquake: us20003111. The temblor was picked up at 09:44:04 / 9:44 am (local time epicenter). Exact location of event, depth 22.77 km, -169.197° West, 51.8615° North. The earthquake was roughly at a depth of 22.77 km (14 miles). Global date and time of event UTC/GMT: 28/07/15 / 2015-07-28 20:44:04 / July 28, 2015 @ 8:44 pm.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days thirty-nine, in the past 30 days fourty-two and in the last 365 days one hundred and sixteen earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 130,000 minor quakes in the world each year.

Did you feel anything?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 121 km S of Nikolski, Alaska.

Alaska Nikolski

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-169.197° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.8615° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	22.77 km	Depth of the event in kilometers.
Place	121km S of Nikolski, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2015-07-28 20:44:04	Time when the event occurred. UTC/GMT
Updated	2015-07-28 22:05:36	Time when the event was most recently updated. UTC/GMT
Timezone offset	-660	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	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	,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	1.132	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.8 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	212	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	us20003111	Id of event.
Event Code	20003111	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us20003111,	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 Nikolski in Alaska

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