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Minor earthquake 3 mag, 47 km N of Little Sitkin Island, Alaska



Earthquake location 52.3738S, 178.59WA minor earthquake magnitude 3 (ml/mb) strikes 47 km N of Little Sitkin Island, Alaska (29 miles) on Friday. The epicenter of the earthquake was roughly 83.7 km (52 miles) below the earth’s surface. The temblor was picked up at 09:46:38 / 9:46 am (local time epicenter). Exact location of event, longitude 178.59 East, latitude 52.3738 North, depth = 83.7 km. Event id: us20005g8z. Ids that are associated to the earthquake: ak13396398, us20005g8z. Global date and time of event UTC/GMT: 07/04/16 / 2016-04-07 21:46:38 / April 7, 2016 @ 9:46 pm.

Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days seven and in the last 365 days ninety-one 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.

Questions or comments?

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: 47 km N of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude 178.59° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.3738° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 83.7 km Depth of the event in kilometers.
Place 47km N of Little Sitkin 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 2016-04-07 21:46:38 Time when the event occurred. UTC/GMT
Updated 2016-04-08 00:19:17 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 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 138 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.92 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 us20005g8z Id of event.
Event Code 20005g8z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13396398,us20005g8z, A comma-separated list of event ids that are associated to an event.

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