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Minor earthquake: M3.1 quake has struck near Nikolski in Alaska



Earthquake location 53.1441S, -168.5444WA minor earthquake with magnitude 3.1 (ml/mb) was reported 31 km NE of Nikolski, Alaska (19 miles) on Tuesday. Date and time of earthquake in UTC/GMT: 22/03/16 / 2016-03-22 10:04:20 / March 22, 2016 @ 10:04 am. Event id: ak13042327. Ids that are associated to the earthquake: ak13042327. Exact location of event, longitude -168.5444 West, latitude 53.1441 North, depth = 105.8 km. The temblor was reported at 02:04:20 / 2:04 am (local time epicenter). The epicenter of the earthquake was roughly 105.8 km (66 miles) below the earth’s surface.

In the past 24 hours, there have been thirteen, in the last 10 days fifteen, in the past 30 days twenty-one and in the last 365 days one hundred and seventy-six earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 31 km NE of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -168.5444° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.1441° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 105.8 km Depth of the event in kilometers.
Place 31km NE 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 2016-03-22 10:04:20 Time when the event occurred. UTC/GMT
Updated 2016-04-01 15:10:43 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 148 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 16 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 0.52 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 169.199986464 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 ak13042327 Id of event.
Event Code 13042327 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13042327, A comma-separated list of event ids that are associated to an event.

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