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Light earthquake, 4 mag has occurred near Nikiski in Alaska

Posted by admin on December 14, 2018 0 Comments

Earthquake location 61.4402S, -151.6556WA light earthquake magnitude 4 (ml/mb) strikes 79 km N of Nikiski, Alaska (49 miles) on Friday. The 4-magnitude earthquake was detected at 06:36:57 / 6:36 am (local time epicenter). The epicenter was at a depth of 76.3 km (47 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -151.6556 West, latitude 61.4402 North, depth = 76.3 km. Event ids that are associated to the earthquake: ak20513285, at00pjqgpl. Id of event: ak20513285. Exact time and date of event in UTC/GMT: 14/12/18 / 2018-12-14 15:36:57 / December 14, 2018 @ 3:36 pm.

In the past 24 hours, there have been three, in the last 10 days seventy, in the past 30 days three hundred and eighty-six and in the last 365 days four hundred and thirty earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 79 km N of Nikiski, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -151.6556° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.4402° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 76.3 km Depth of the event in kilometers.
Place 79km N of Nikiski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-14 15:36:57 Time when the event occurred. UTC/GMT
Updated 2018-12-14 15:42:23 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 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 automatic 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 246 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,at, 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 0.54 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 ak20513285 Id of event.
Event Code 20513285 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20513285,at00pjqgpl, A comma-separated list of event ids that are associated to an event.

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