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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.9 mag, 15 km NE of Hihifo, Tonga


Earthquake location -15.8498S, -173.6462WA light earthquake with magnitude 4.9 (ml/mb) was reported 15 kilometers (9 miles) from Hihifo in Tonga on Sunday. The epicenter of the earthquake was roughly 50.45 km (31 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -173.6462° West, -15.8498° South, depth 50.45 km. The temblor was picked up at 01:53:56 / 1:53 am (local time epicenter). Event ids that are associated to the earthquake: us1000i0hn. Id of event: us1000i0hn. Global time and date of event 02/12/18 / 2018-12-02 13:53:56 / December 2, 2018 @ 1:53 pm UTC/GMT.

Nearby country/countries that might be effected, Tonga (c. 123 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Hihifo (min 5000 pop). Epicenter of the earthquake was 20 km (12 miles) from Hihifo (c. 800 pop).

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

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 15 km NE of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude -173.6462° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.8498° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 50.45 km Depth of the event in kilometers.
Place 15km NE 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 2018-12-02 13:53:56 Time when the event occurred. UTC/GMT
Updated 2018-12-02 14:51:54 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 369 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 2.643 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.78 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 us1000i0hn Id of event.
Event Code 1000i0hn An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000i0hn, A comma-separated list of event ids that are associated to an event.

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