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Light earthquake: M4.7 quake has struck near Kobuk in Alaska

Posted by admin on April 23, 2019 0 Comments

Earthquake location 66.3526S, -157.5019WA light earthquake with magnitude 4.7 (ml/mb) was reported 67 km SSW of Kobuk, Alaska (42 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 23/04/19 / 2019-04-23 15:32:44 / April 23, 2019 @ 3:32 pm UTC/GMT. The epicenter of the earthquake was roughly 16.8 km (10 miles) below the earth’s surface. Exact location, longitude -157.5019° West, latitude 66.3526° North, depth = 16.8 km. The temblor was detected at 06:32:44 / 6:32 am (local time epicenter). Unique identifier: ak019574uo3u. Ids that are associated to the event: ak019574uo3u.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days sixteen, in the past 30 days sixty-two and in the last 365 days one hundred and fourteen earthquakes of magnitude 3.0 or greater that has occurred nearby.

How would you describe the shaking?

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. 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: 67 km SSW of Kobuk, Alaska.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -157.5019° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 66.3526° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 16.8 km Depth of the event in kilometers.
Place 67km SSW of Kobuk, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-04-23 15:32:44 Time when the event occurred. UTC/GMT
Updated 2019-04-23 15:36:23 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 340 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 0.87 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 ak019574uo3u Id of event.
Event Code 019574uo3u An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak019574uo3u, A comma-separated list of event ids that are associated to an event.

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