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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.6 mag was detected near Unalaska in Alaska


Earthquake location 53.8113S, -166.3122WA minor earthquake with magnitude 3.6 (ml/mb) was reported 16 km ESE of Unalaska, Alaska (10 miles) on Wednesday. The earthquake was roughly at a depth of 72.47 km (45 miles). Exact location of event, longitude -166.3122 West, latitude 53.8113 North, depth = 72.47 km. The 3.6-magnitude earthquake has occurred at 12:45:52 / 12:45 pm (local time epicenter). Global time and date of event 28/12/16 / 2016-12-28 22:45:52 / December 28, 2016 @ 10:45 pm UTC/GMT. Event ids that are associated to the earthquake: ak14819175, us10007rir. Id of event: us10007rir.

Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been six, in the last 10 days twelve, in the past 30 days sixteen and in the last 365 days ninety-six earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 16 km ESE of Unalaska, Alaska.

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More information

Parameter Value Description
Magnitude 3.6 mb The magnitude for the event.
Longitude -166.3122° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.8113° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 72.47 km Depth of the event in kilometers.
Place 16km ESE 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 2016-12-28 22:45:52 Time when the event occurred. UTC/GMT
Updated 2017-01-19 23:31:19 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 199 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 0.118 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 179 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 us10007rir Id of event.
Event Code 10007rir An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak14819175,us10007rir, A comma-separated list of event ids that are associated to an event.

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