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Minor earthquake 3.3 mag, 73 km SE of Atka, Alaska

Earthquake location 51.6721S, -173.5445WA minor earthquake magnitude 3.3 (ml/mb) has struck on Tuesday, 73 km SE of Atka, Alaska (45 miles). Exact time and date of event in UTC/GMT: 01/12/20 / 2020-12-01 00:40:49 / December 1, 2020 @ 12:40 am. Exact location of event, longitude -173.5445 West, latitude 51.6721 North, depth = 14.09 km. The temblor was reported at 00:40:49 / 12:40 am (local time epicenter). Event ids that are associated to the earthquake: ak020ffotafg, us7000cq7h. Id of event: us7000cq7h. The epicenter of the earthquake was roughly 14.09 km (9 miles) below the earth’s surface.

In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days nine and in the last 365 days one hundred and three earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 73 km SE of Atka, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -173.5445° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.6721° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.09 km Depth of the event in kilometers.
Place 73 km SE 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 2020-12-01 00:40:49 Time when the event occurred. UTC/GMT
Updated 2020-12-15 06:15:09 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 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 0.666 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 304 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 us7000cq7h Id of event.
Event Code 7000cq7h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020ffotafg,us7000cq7h, A comma-separated list of event ids that are associated to an event.

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