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Minor earthquake, 2.9 mag strikes near Atka in Alaska



Earthquake location 52.7286S, -174.4937WA minor earthquake magnitude 2.9 (ml/mb) has occurred on Sunday, 62 km NNW of Atka, Alaska (39 miles). Date and time of earthquake in UTC/GMT: 13/09/15 / 2015-09-13 12:40:25 / September 13, 2015 @ 12:40 pm. The epicenter of the earthquake was roughly 179.43 km (111 miles) below the earth’s surface. Exact location of earthquake, -174.4937° West, 52.7286° North, depth 179.43 km. The temblor was reported at 00:40:25 / 12:40 am (local time epicenter). All ids that are associated to the event: ak11701085, us20003j6g. Unique identifier: us20003j6g.

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days five and in the last 365 days fifty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 62 km NNW of Atka, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -174.4937° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.7286° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 179.43 km Depth of the event in kilometers.
Place 62km NNW 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 2015-09-13 12:40:25 Time when the event occurred. UTC/GMT
Updated 2015-10-03 08:36:37 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 129 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 0.444 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 169 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 us20003j6g Id of event.
Event Code 20003j6g An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11701085,us20003j6g, A comma-separated list of event ids that are associated to an event.

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