Moderate earthquake, 5.1 mag strikes near `Ohonua in Tonga

A moderate earthquake with magnitude 5.1 (ml/mb) was detected on Thursday, 143 km ENE of `Ohonua, Tonga (89 miles). Exact location of earthquake, -173.6269° West, -20.9469° South, depth 10 km. Event id: us1000bjg3. Ids that are associated to the earthquake: us1000bjg3. The earthquake occurred at a depth of 10 km (6 miles). Date and time of earthquake in UTC/GMT: 30/11/17 / 2017-11-30 17:57:59 / November 30, 2017 @ 5:57 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 05:57:59 / 5:57 am (local time epicenter).

There are an estimated 1320 moderate quakes in the world each year. In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days six and in the last 365 days thirty-five earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

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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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 143 km ENE of `Ohonua, Tonga. This information comes from the USGS Earthquake Notification Service.

`Ohonua Tonga

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Parameter	Value	Description
Magnitude	5.1 mb	The magnitude for the event.
Longitude	-173.6269° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-20.9469° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	143km ENE of `Ohonua, Tonga	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-11-30 17:57:59	Time when the event occurred. UTC/GMT
Updated	2017-11-30 19:15:34	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	400	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	3.945	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.45 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	58	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	us1000bjg3	Id of event.
Event Code	1000bjg3	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000bjg3,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.1 mag strikes near `Ohonua in Tonga

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