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Light earthquake: M4.6 quake has struck near Kaktovik in Alaska

Posted by admin on December 18, 2018 0 Comments

Earthquake location 69.706S, -145.001WA light earthquake with magnitude 4.6 (ml/mb) was reported 71 km SW of Kaktovik, Alaska (44 miles) on Monday. Exact location of earthquake, longitude -145.001 West, latitude 69.706 North, depth = 20 km. The epicenter of the earthquake was roughly 20 km (12 miles) below the earth’s surface. Event ids that are associated to the earthquake: at00pjwv0y, ak20521818. Id of event: at00pjwv0y. A tsunami warning has been issued near Kaktovik in Alaska (Does not indicate if a tsunami actually did or will exist). The 4.6-magnitude earthquake was detected at 17:31:46 / 5:31 pm (local time epicenter). Global date and time of event UTC/GMT: 18/12/18 / 2018-12-18 02:31:46 / December 18, 2018 @ 2:31 am.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days twenty-six and in the last 365 days six hundred and fourty-eight earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light quakes in the world each year.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 71 km SW of Kaktovik, Alaska.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -145.001° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 69.706° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 km Depth of the event in kilometers.
Place 71km SW of Kaktovik, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-18 02:31:46 Time when the event occurred. UTC/GMT
Updated 2018-12-18 02:40:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 5.45 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 1 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 326 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,ak, A comma-separated list of network contributors.
Number of Stations Used 35 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.950242 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.87 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122.399990208 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 at00pjwv0y Id of event.
Event Code 00pjwv0y An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00pjwv0y,ak20521818, A comma-separated list of event ids that are associated to an event.

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