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Minor earthquake 2.8 mag, 26 km ESE of Atka, Alaska



Earthquake location 52.1022S, -173.849WA minor earthquake magnitude 2.8 (ml/mb) strikes 26 km ESE of Atka, Alaska (16 miles) on Sunday. Exact location of event, depth 176.31 km, -173.849° West, 52.1022° North. Date and time of earthquake in UTC/GMT: 13/09/15 / 2015-09-13 11:37:59 / September 13, 2015 @ 11:37 am. The temblor was picked up at 02:37:59 / 2:37 am (local time epicenter). Unique identifier: us20003j6d. Ids that are associated to the event: ak11700992, us20003j6d. The earthquake was roughly at a depth of 176.31 km (110 miles).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been eleven, in the last 10 days sixty-six, in the past 30 days eighty-one and in the last 365 days one hundred and eighty-six earthquakes of magnitude 3.0 or greater that have been detected nearby. Every year there are an estimated 1,300,000 minor earthquakes in the world.

Did you feel the quake?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 26 km ESE of Atka, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -173.849° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1022° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 176.31 km Depth of the event in kilometers.
Place 26km ESE 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 11:37:59 Time when the event occurred. UTC/GMT
Updated 2015-10-03 08:13:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 121 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 0.23 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 189 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 us20003j6d Id of event.
Event Code 20003j6d An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11700992,us20003j6d, A comma-separated list of event ids that are associated to an event.

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