Light earthquake: M4.5 quake has struck near Hihifo in Tonga

A light earthquake magnitude 4.5 (ml/mb) strikes 243 km W of Hihifo, Tonga (151 miles) on Thursday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us100049e5. Ids that are associated to the event: us100049e5. Exact location of earthquake, -176.0215° West, -16.1299° South, depth 363.18 km. Global time and date of event 25/12/15 / 2015-12-25 00:13:07 / December 25, 2015 @ 12:13 am UTC/GMT. The temblor was reported at 12:13:07 / 12:13 pm (local time epicenter). The earthquake occurred at a depth of 363.18 km (226 miles) below the earth’s surface.

Every 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. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days thirteen earthquakes of magnitude 3.0 or greater that was reported nearby.

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. 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: 243 km W of Hihifo, Tonga.

Hihifo Tonga

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Parameter	Value	Description
Magnitude	4.5 mb	The magnitude for the event.
Longitude	-176.0215° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-16.1299° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	363.18 km	Depth of the event in kilometers.
Place	243km W 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	2015-12-25 00:13:07	Time when the event occurred. UTC/GMT
Updated	2015-12-25 00:32:41	Time when the event was most recently updated. UTC/GMT
Timezone offset	-720	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	312	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	5.894	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.5 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	66	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	us100049e5	Id of event.
Event Code	100049e5	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us100049e5,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.5 quake has struck near Hihifo in Tonga

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