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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.8 mag was detected near Atka in Alaska

Posted by admin on December 15, 2015 0 Comments

Earthquake location 51.5172S, -174.5463WA light earthquake magnitude 4.8 (ml/mb) has struck on Monday, 79 km SSW of Atka, Alaska (49 miles). Exact location of event, longitude -174.5463 West, latitude 51.5172 North, depth = 42.43 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 42.43 km (26 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 15/12/15 / 2015-12-15 11:27:06 / December 15, 2015 @ 11:27 am. Event ids that are associated to the earthquake: us20004hal. Id of event: us20004hal. The temblor was detected at 23:27:06 / 11:27 pm (local time epicenter).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days eight and in the last 365 days two hundred and fifty-eight 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.

Questions or comments?

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. 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: 79 km SSW of Atka, Alaska.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -174.5463° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5172° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42.43 km Depth of the event in kilometers.
Place 79km SSW of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-15 11:27:06 Time when the event occurred. UTC/GMT
Updated 2015-12-15 11:48:11 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 354 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 0.718 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 143 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 us20004hal Id of event.
Event Code 20004hal An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20004hal, A comma-separated list of event ids that are associated to an event.

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