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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake, 5.7 mag has occurred near Hihifo in Tonga


Earthquake location -16.126S, -173.9583WA moderate earthquake magnitude 5.7 (ml/mb) has occurred on Friday, 29 kilometers (18 miles) from Hihifo in Tonga. The 5.7-magnitude earthquake was detected at 11:42:09 / 11:42 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -173.9583° West, latitude -16.126° South, depth = 117.45 km. Event ids that are associated to the earthquake: pt17342003, us2000c286. Id of event: us2000c286. Global time and date of event 08/12/17 / 2017-12-08 23:42:09 / December 8, 2017 @ 11:42 pm UTC/GMT. The epicenter of the earthquake was roughly 117.45 km (73 miles) below the earth’s surface.

Epicenter of the event was 26 km (16 miles) from Hihifo (c. 800 pop). Nearby country/countries that might be effected, Tonga (c. 123 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Hihifo (min 5000 pop).

In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days seven and in the last 365 days sixty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. There are an estimated 1320 moderate earthquakes in the world each year.

Did you feel anything?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 29 km SW of Hihifo, Tonga. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.7 mb The magnitude for the event.
Longitude -173.9583° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.126° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 117.45 km Depth of the event in kilometers.
Place 29km SW 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 2017-12-08 23:42:09 Time when the event occurred. UTC/GMT
Updated 2017-12-09 00:01:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 The maximum reported intensity for the event.
MMI 4.09 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 500 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 ,pt,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 3.049 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.87 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 56 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 us2000c286 Id of event.
Event Code 2000c286 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt17342003,us2000c286, A comma-separated list of event ids that are associated to an event.

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