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Minor earthquake, 3.4 mag has occurred near Atka in Alaska



Earthquake location 51.8308S, -174.4692WA minor earthquake magnitude 3.4 (ml/mb) has struck on Friday, 44 km SSW of Atka, Alaska (27 miles). All ids that are associated to the event: ak11723355. Unique identifier: ak11723355. The earthquake occurred at a depth of 44.1 km (27 miles). The 3.4-magnitude earthquake was detected at 11:23:33 / 11:23 am (local time epicenter). Exact location of event, longitude -174.4692 West, latitude 51.8308 North, depth = 44.1 km. Exact time and date of earthquake 25/09/15 / 2015-09-25 20:23:33 / September 25, 2015 @ 8:23 pm UTC/GMT.

Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been six, in the last 10 days thirteen, in the past 30 days eighty-nine and in the last 365 days two hundred and seventeen earthquakes of magnitude 3.0 or greater that has occurred 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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 44 km SSW of Atka, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude -174.4692° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.8308° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 44.1 km Depth of the event in kilometers.
Place 44km SSW of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-25 20:23:33 Time when the event occurred. UTC/GMT
Updated 2015-10-06 02:38:28 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 178 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 11 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 0.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 241.199980704 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 ak11723355 Id of event.
Event Code 11723355 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11723355, A comma-separated list of event ids that are associated to an event.

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