Light earthquake, 4.4 mag strikes near Neiafu in Tonga

A light earthquake with magnitude 4.4 (ml/mb) was detected on Saturday, 133 km NW of Neiafu, Tonga (83 miles). All ids that are associated to the event: us10008txj. Unique identifier: us10008txj. Exact location of event, longitude -174.9117 West, latitude -17.8275 South, depth = 228.29 km. Global time and date of event 20/05/17 / 2017-05-20 22:54:42 / May 20, 2017 @ 10:54 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 10:54:42 / 10:54 am (local time epicenter). The earthquake occurred at a depth of 228.29 km (142 miles).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days five and in the last 365 days thirty-four earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

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: 133 km NW of Neiafu, Tonga. This information comes from the USGS Earthquake Notification Service.

Neiafu Tonga

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Parameter	Value	Description
Magnitude	4.4 mb	The magnitude for the event.
Longitude	-174.9117° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-17.8275° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	228.29 km	Depth of the event in kilometers.
Place	133km NW of Neiafu, Tonga	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-05-20 22:54:42	Time when the event occurred. UTC/GMT
Updated	2017-05-20 23:13:07	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	298	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	4.891	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.64 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	92	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	us10008txj	Id of event.
Event Code	10008txj	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us10008txj,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.4 mag strikes near Neiafu in Tonga

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