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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag strikes near Pangai in Tonga



Earthquake location -20.6671S, -174.1767WA light earthquake magnitude 4.6 (ml/mb) has occurred on Tuesday, 97 kilometers (60 miles) from Pangai in Tonga. Id of earthquake: us20005c9q. Event ids that are associated: us20005c9q. Exact location of earthquake, longitude -174.1767 West, latitude -20.6671 South, depth = 10 km. Exact time and date of earthquake 22/03/16 / 2016-03-22 16:45:42 / March 22, 2016 @ 4:45 pm UTC/GMT. The earthquake was roughly at a depth of 10 km (6 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.6-magnitude earthquake has occurred at 04:45:42 / 4:45 am (local time epicenter).

Nearest cities/city/towns to hypocenter/epicentrum was Pangai (min 5000 pop). Epicenter of the earthquake was 97 km (60 miles) from Pangai (c. 1 700 pop). Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected).

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

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 97 km S of Pangai, Tonga.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -174.1767° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.6671° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 97km S of Pangai, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-03-22 16:45:42 Time when the event occurred. UTC/GMT
Updated 2016-04-19 13:54:38 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 7.1 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 96 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 us20005c9q Id of event.
Event Code 20005c9q An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20005c9q, A comma-separated list of event ids that are associated to an event.

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