Light earthquake, 4.4 mag was detected near Hihifo in Tonga

A light earthquake with magnitude 4.4 (ml/mb) was detected on Sunday, 128 km ENE of Hihifo, Tonga (80 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 10 km (6 miles). Event id: us2000cyy2. Ids that are associated to the earthquake: us2000cyy2. Exact location of event, longitude -172.6716 West, latitude -15.4395 South, depth = 10 km. The 4.4-magnitude earthquake was detected at 04:11:49 / 4:11 am (local time epicenter). Exact time and date of earthquake 28/01/18 / 2018-01-28 16:11:49 / January 28, 2018 @ 4:11 pm UTC/GMT.

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

Did you feel the quake?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 128 km ENE of Hihifo, Tonga. This information comes from the USGS Earthquake Notification Service.

Hihifo Tonga

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Parameter	Value	Description
Magnitude	4.4 mb	The magnitude for the event.
Longitude	-172.6716° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-15.4395° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	128km ENE 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	2018-01-28 16:11:49	Time when the event occurred. UTC/GMT
Updated	2018-02-11 21:48:33	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	1.75	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.14 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	133	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	us2000cyy2	Id of event.
Event Code	2000cyy2	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us2000cyy2,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.4 mag was detected near Hihifo in Tonga

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