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Light earthquake, 4.3 mag strikes near Amukta Island in Alaska

Posted by admin on April 23, 2018 0 Comments

Earthquake location 52.0516S, -170.9631WA light earthquake magnitude 4.3 (ml/mb) strikes 52 km SSE of Amukta Island, Alaska (32 miles) on Monday. The earthquake occurred at a depth of 42.23 km (26 miles) below the earth’s surface. Global date and time of event UTC/GMT: 23/04/18 / 2018-04-23 16:00:54 / April 23, 2018 @ 4:00 pm. Id of earthquake: us1000dqqd. Event ids that are associated: us1000dqqd. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 05:00:54 / 5:00 am (local time epicenter). Exact location of earthquake, longitude -170.9631 West, latitude 52.0516 North, depth = 42.23 km.

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

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 52 km SSE of Amukta Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -170.9631° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.0516° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42.23 km Depth of the event in kilometers.
Place 52km SSE of Amukta Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-04-23 16:00:54 Time when the event occurred. UTC/GMT
Updated 2018-04-23 17:04:57 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 284 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 1.012 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 226 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 us1000dqqd Id of event.
Event Code 1000dqqd An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000dqqd, A comma-separated list of event ids that are associated to an event.

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