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Minor earthquake, 2.9 mag was detected near Amukta Island in Alaska



Earthquake location 51.988S, -171.498WA minor earthquake magnitude 2.9 (ml/mb) has occurred on Tuesday, 58 km SSW of Amukta Island, Alaska (36 miles). The epicenter was at a depth of 41.5 km (26 miles). The temblor was picked up at 07:49:46 / 7:49 am (local time epicenter). Exact time and date of earthquake 21/11/17 / 2017-11-21 18:49:46 / November 21, 2017 @ 6:49 pm UTC/GMT. Exact location of earthquake, longitude -171.498 West, latitude 51.988 North, depth = 41.5 km. All ids that are associated to the event: ak17362927. Unique identifier: ak17362927.

In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days twelve and in the last 365 days one hundred and nineteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 58 km SSW of Amukta Island, Alaska.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -171.498° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.988° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 41.5 km Depth of the event in kilometers.
Place 58km SSW of Amukta 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 2017-11-21 18:49:46 Time when the event occurred. UTC/GMT
Updated 2017-11-27 18:15:54 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 129 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 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 0.56 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak17362927 Id of event.
Event Code 17362927 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak17362927, A comma-separated list of event ids that are associated to an event.

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