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Minor earthquake 3.1 mag, 79 km SE of Unalaska, Alaska

Earthquake location 53.4006S, -165.6317WA minor earthquake with magnitude 3.1 (ml/mb) was reported 79 km SE of Unalaska, Alaska (49 miles) on Sunday. The 3.1-magnitude earthquake was detected at 03:11:40 / 3:11 am (local time epicenter). Global time and date of event 04/09/16 / 2016-09-04 14:11:40 / September 4, 2016 @ 2:11 pm UTC/GMT. Event id: us10006pmn. Ids that are associated to the earthquake: ak13905870, us10006pmn. Exact location of event, depth 49.21 km, -165.6317° West, 53.4006° North. The epicenter was at a depth of 49.21 km (31 miles).

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

Did you feel anything?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 79 km SE of Unalaska, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -165.6317° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.4006° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 49.21 km Depth of the event in kilometers.
Place 79km SE 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 2016-09-04 14:11:40 Time when the event occurred. UTC/GMT
Updated 2016-09-28 13:38:14 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 148 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 ,ak,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 0.684 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 193 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 us10006pmn Id of event.
Event Code 10006pmn An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13905870,us10006pmn, A comma-separated list of event ids that are associated to an event.

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