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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Hihifo in Tonga

Posted by admin on January 15, 2017 0 Comments

Earthquake location -16.0432S, -176.0319WA light earthquake magnitude 4.2 (ml/mb) has struck on Friday, 244 km W of Hihifo, Tonga (152 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 21:55:49 / 9:55 pm (local time epicenter). Global date and time of event UTC/GMT: 17/12/16 / 2016-12-17 09:55:49 / December 17, 2016 @ 9:55 am. All ids that are associated to the event: us10007ppx. Unique identifier: us10007ppx. Exact location, longitude -176.0319° West, latitude -16.0432° South, depth = 356.02 km. The epicenter of the earthquake was roughly 356.02 km (221 miles) below the earth’s surface.

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

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 244 km W of Hihifo, Tonga. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -176.0319° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.0432° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 356.02 km Depth of the event in kilometers.
Place 244km W of Hihifo, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-12-17 09:55:49 Time when the event occurred. UTC/GMT
Updated 2017-01-15 06:18:30 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 271 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 4.626 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.44 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 157 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 us10007ppx Id of event.
Event Code 10007ppx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10007ppx, A comma-separated list of event ids that are associated to an event.

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