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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Adak in Alaska

Posted by admin on April 19, 2017 0 Comments

Earthquake location 51.1633S, -176.4298WA light earthquake magnitude 4.3 (ml/mb) has occurred on Tuesday, 81 km SSE of Adak, Alaska (50 miles). The epicenter was at a depth of 41.66 km (26 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us10008ec6. Event ids that are associated: ak15680385, us10008ec6. The temblor was picked up at 03:53:18 / 3:53 am (local time epicenter). Exact location of earthquake, longitude -176.4298 West, latitude 51.1633 North, depth = 41.66 km. Exact time and date of earthquake 04/04/17 / 2017-04-04 15:53:18 / April 4, 2017 @ 3:53 pm UTC/GMT.

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

Did you feel it?

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. 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: 81 km SSE of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -176.4298° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.1633° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 41.66 km Depth of the event in kilometers.
Place 81km SSE of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-04-04 15:53:18 Time when the event occurred. UTC/GMT
Updated 2017-04-19 16:36:34 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 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 ,ak,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 0.737 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.02 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 199 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 us10008ec6 Id of event.
Event Code 10008ec6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15680385,us10008ec6, A comma-separated list of event ids that are associated to an event.

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