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Light earthquake, 4.6 mag was detected near Hihifo in Tonga

Posted by admin on November 28, 2017 0 Comments

Earthquake location -15.1889S, -174.2189WA light earthquake magnitude 4.6 (ml/mb) has struck on Monday, 98 kilometers (61 miles) from Hihifo in Tonga. Exact location, longitude -174.2189° West, latitude -15.1889° South, depth = 198.16 km. The temblor was reported at 14:15:24 / 2:15 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 28/11/17 / 2017-11-28 02:15:24 / November 28, 2017 @ 2:15 am UTC/GMT. Event id: us2000bv90. Ids that are associated to the earthquake: us2000bv90. The epicenter of the earthquake was roughly 198.16 km (123 miles) below the earth’s surface.

Event epicenter was 96 km (60 miles) from Hihifo (c. 800 pop). Nearest cities/city/towns to hypocenter/epicentrum was Hihifo (min 5000 pop). Nearby country/countries that might be effected, Tonga (c. 123 000 pop).

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 ten and in the last 365 days fourty-eight earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 98 km NNW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -174.2189° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.1889° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 198.16 km Depth of the event in kilometers.
Place 98km NNW 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 2017-11-28 02:15:24 Time when the event occurred. UTC/GMT
Updated 2017-11-28 02:30:50 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 326 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 2.684 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 108 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 us2000bv90 Id of event.
Event Code 2000bv90 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000bv90, A comma-separated list of event ids that are associated to an event.

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