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Minor earthquake, 3.1 mag has occurred near Little Sitkin Island in Alaska



Earthquake location 51.3671S, 178.816WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Thursday, 60 km SSE of Little Sitkin Island, Alaska (37 miles). Exact time and date of event in UTC/GMT: 25/08/17 / 2017-08-25 01:32:33 / August 25, 2017 @ 1:32 am. Exact location of earthquake, 178.816° East, 51.3671° North, depth 56.37 km. Id of earthquake: us2000agdv. Event ids that are associated: ak16657346, us2000agdv. The temblor was detected at 15:32:33 / 3:32 pm (local time epicenter). The earthquake occurred at a depth of 56.37 km (35 miles) below the earth’s surface.

In the past 24 hours, there have been four, in the last 10 days ten, in the past 30 days eighteen and in the last 365 days one hundred and sixty-eight earthquakes of magnitude 3.0 or greater that has struck near. 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.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 60 km SSE of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude 178.816° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3671° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 56.37 km Depth of the event in kilometers.
Place 60km SSE 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 2017-08-25 01:32:33 Time when the event occurred. UTC/GMT
Updated 2017-09-14 05:45:28 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 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 0.303 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.36 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 255 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 us2000agdv Id of event.
Event Code 2000agdv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16657346,us2000agdv, A comma-separated list of event ids that are associated to an event.

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