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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.4 mag, 151 km NNW of Nuku`alofa, Tonga

Posted by admin on January 24, 2016 0 Comments

Earthquake location -19.8976S, -175.8219WA light earthquake magnitude 4.4 (ml/mb) strikes 151 km NNW of Nuku`alofa, Tonga (94 miles) on Saturday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us10004bhi. Id of event: us10004bhi. The temblor was detected at 04:47:50 / 4:47 am (local time epicenter). The earthquake occurred at a depth of 180.96 km (112 miles) below the earth’s surface. Exact time and date of earthquake 26/12/15 / 2015-12-26 16:47:50 / December 26, 2015 @ 4:47 pm UTC/GMT. Exact location of earthquake, longitude -175.8219 West, latitude -19.8976 South, depth = 180.96 km.

Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days four and in the last 365 days twenty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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. 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: 151 km NNW of Nuku`alofa, Tonga.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -175.8219° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.8976° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 180.96 km Depth of the event in kilometers.
Place 151km NNW of Nuku`alofa, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-26 16:47:50 Time when the event occurred. UTC/GMT
Updated 2016-01-24 15:10:40 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 298 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 5.62 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 114 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 us10004bhi Id of event.
Event Code 10004bhi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004bhi, A comma-separated list of event ids that are associated to an event.

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