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Minor earthquake, 3.3 mag has occurred near Atka in Alaska

Earthquake location 51.7404S, -171.9821WA minor earthquake magnitude 3.3 (ml/mb) strikes 160 km ESE of Atka, Alaska (99 miles) on Sunday. Exact location of event, depth 19 km, -171.9821° West, 51.7404° North. The temblor was reported at 14:46:34 / 2:46 pm (local time epicenter). Global date and time of event UTC/GMT: 14/02/21 / 2021-02-14 14:46:34 / February 14, 2021 @ 2:46 pm. Unique identifier: ak02122nsngr. Ids that are associated to the event: ak02122nsngr. The epicenter was at a depth of 19 km (12 miles).

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been six, in the last 10 days six, in the past 30 days eight and in the last 365 days one hundred and nineteen earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 130,000 minor quakes in the world.

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 160 km ESE of Atka, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -171.9821° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.7404° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 19 km Depth of the event in kilometers.
Place 160 km 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 2021-02-14 14:46:34 Time when the event occurred. UTC/GMT
Updated 2021-03-01 18:29:26 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 168 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 0.63 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 ak02122nsngr Id of event.
Event Code 02122nsngr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak02122nsngr, A comma-separated list of event ids that are associated to an event.

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