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Minor earthquake, 3.1 mag has occurred near Adak in Alaska

Earthquake location 51.49S, -175.6449WA minor earthquake with magnitude 3.1 (ml/mb) was reported 82 km ESE of Adak, Alaska (51 miles) on Monday. The temblor was detected at 21:45:44 / 9:45 pm (local time epicenter). Exact location, longitude -175.6449° West, latitude 51.49° North, depth = 25.6 km. The earthquake occurred at a depth of 25.6 km (16 miles). All ids that are associated to the event: ak15178962. Unique identifier: ak15178962. Global time and date of event 31/01/17 / 2017-01-31 09:45:44 / January 31, 2017 @ 9:45 am UTC/GMT.

Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days seven and in the last 365 days one hundred and sixty-four earthquakes of magnitude 3.0 or greater that have been detected nearby. 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: 82 km ESE of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -175.6449° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.49° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.6 km Depth of the event in kilometers.
Place 82km ESE of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-01-31 09:45:44 Time when the event occurred. UTC/GMT
Updated 2017-02-08 03:30:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 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 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 0.5 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 ak15178962 Id of event.
Event Code 15178962 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15178962, A comma-separated list of event ids that are associated to an event.

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