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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag has occurred near Atka in Alaska


Earthquake location 50.8075S, -174.9073WA minor earthquake magnitude 3.9 (ml/mb) has struck on Sunday, 162 km SSW of Atka, Alaska (101 miles). Global time and date of event 09/12/18 / 2018-12-09 20:41:50 / December 9, 2018 @ 8:41 pm UTC/GMT. All ids that are associated to the event: us2000itk2. Unique identifier: us2000itk2. The earthquake occurred at a depth of 34.01 km (21 miles) below the earth’s surface. Exact location of event, longitude -174.9073 West, latitude 50.8075 North, depth = 34.01 km. The temblor was picked up at 08:41:50 / 8:41 am (local time epicenter).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days three and in the last 365 days one hundred and six earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 130,000 minor quakes in the world each year.

Questions or comments?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 162 km SSW of Atka, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -174.9073° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.8075° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 34.01 km Depth of the event in kilometers.
Place 162km SSW 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 2018-12-09 20:41:50 Time when the event occurred. UTC/GMT
Updated 2019-01-07 16:55:27 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 234 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 ,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 1.464 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 248 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000itk2 Id of event.
Event Code 2000itk2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000itk2, A comma-separated list of event ids that are associated to an event.

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