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Minor earthquake 2.8 mag, 92 km SSE of Yunaska Island, Alaska



Earthquake location 51.8274S, -170.3566WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Sunday, 92 km SSE of Yunaska Island, Alaska (57 miles). Exact time and date of earthquake 21/09/15 / 2015-09-21 02:13:20 / September 21, 2015 @ 2:13 am UTC/GMT. Id of earthquake: us20003phj. Event ids that are associated: ak11724784, us20003phj. The epicenter was at a depth of 35.71 km (22 miles). The temblor was picked up at 15:13:20 / 3:13 pm (local time epicenter). Exact location of earthquake, longitude -170.3566 West, latitude 51.8274 North, depth = 35.71 km.

Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days fourteen, in the past 30 days thirty-six and in the last 365 days three hundred and nineteen earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 92 km SSE of Yunaska Island, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -170.3566° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.8274° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35.71 km Depth of the event in kilometers.
Place 92km SSE of Yunaska 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 2015-09-21 02:13:20 Time when the event occurred. UTC/GMT
Updated 2015-10-05 01:45:12 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 1.036 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 222 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 us20003phj Id of event.
Event Code 20003phj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11724784,us20003phj, A comma-separated list of event ids that are associated to an event.

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