Light earthquake, 4.6 mag strikes near Vaini in Tonga

A light earthquake with magnitude 4.6 (ml/mb) was detected on Tuesday, 30 kilometers (19 miles) from Vaini in Tonga. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 15/02/16 / 2016-02-15 15:09:39 / February 15, 2016 @ 3:09 pm. The temblor was detected at 04:09:39 / 4:09 am (local time epicenter). Exact location of event, longitude -175.4516 West, latitude -21.3428 South, depth = 17.73 km. The earthquake occurred at a depth of 17.73 km (11 miles) below the earth’s surface. Id of earthquake: us10004qtq. Event ids that are associated: us10004qtq.

Earthquake epicenter was 34 km (21 miles) from Nuku‘alofa (c. 22 400 pop), 52 km (32 miles) from ‘Ohonua (c. 1 200 pop). Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was ‘Ohonua, Nuku‘alofa.

In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days six and in the last 365 days twenty 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. There are an estimated 13,000 light quakes in the world each year.

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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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 30 km WSW of Vaini, Tonga.

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Parameter	Value	Description
Magnitude	4.6 mb	The magnitude for the event.
Longitude	-175.4516° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-21.3428° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	17.73 km	Depth of the event in kilometers.
Place	30km WSW of Vaini, Tonga	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2016-02-15 15:09:39	Time when the event occurred. UTC/GMT
Updated	2016-03-09 15:28:43	Time when the event was most recently updated. UTC/GMT
Timezone offset	780	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	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	7.093	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.47 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	222	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	us10004qtq	Id of event.
Event Code	10004qtq	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us10004qtq,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.6 mag strikes near Vaini in Tonga

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