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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag has occurred near Hihifo in Tonga


Earthquake location -16.9544S, -174.0901WA light earthquake magnitude 4.6 (ml/mb) has struck on Wednesday, 116 km SSW of Hihifo, Tonga (72 miles). Date and time of earthquake in UTC/GMT: 23/06/16 / 2016-06-23 07:54:42 / June 23, 2016 @ 7:54 am. The earthquake occurred at a depth of 90.94 km (57 miles) below the earth’s surface. The temblor was detected at 19:54:42 / 7:54 pm (local time epicenter). All ids that are associated to the event: us200067jt. Unique identifier: us200067jt. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 90.94 km, -174.0901° West, -16.9544° South.

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

How would you describe the shaking?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 116 km SSW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -174.0901° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.9544° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 90.94 km Depth of the event in kilometers.
Place 116km SSW 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 2016-06-23 07:54:42 Time when the event occurred. UTC/GMT
Updated 2016-07-14 13:27:26 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 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 3.76 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 82 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 us200067jt Id of event.
Event Code 200067jt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us200067jt, A comma-separated list of event ids that are associated to an event.

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