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Minor earthquake 2.8 mag, 141 km NE of Chignik Lake, Alaska



Earthquake location 57.1012S, -157.0501WA minor earthquake with magnitude 2.8 (ml/mb) was reported 141 km NE of Chignik Lake, Alaska (88 miles) on Monday. Exact time and date of event in UTC/GMT: 13/10/15 / 2015-10-13 04:14:22 / October 13, 2015 @ 4:14 am. The earthquake was roughly at a depth of 9.4 km (6 miles). The temblor was detected at 20:14:22 / 8:14 pm (local time epicenter). Unique identifier: ak11738403. Ids that are associated to the event: ak11738403. Exact location of earthquake, longitude -157.0501 West, latitude 57.1012 North, depth = 9.4 km.

In the past 24 hours, there have been 0, in the last 10 days five, in the past 30 days seven and in the last 365 days seventy-three earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 1,300,000 minor quakes in the world each year. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 141 km NE of Chignik Lake, 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 -157.0501° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.1012° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 9.4 km Depth of the event in kilometers.
Place 141km NE of Chignik Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-13 04:14:22 Time when the event occurred. UTC/GMT
Updated 2015-10-13 05:47:54 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 automatic 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 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 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 0.56 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 ak11738403 Id of event.
Event Code 11738403 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11738403, A comma-separated list of event ids that are associated to an event.

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