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Light earthquake, 4.6 mag was detected near Hihifo in Tonga

Posted by admin on November 20, 2020 0 Comments

Earthquake location -16.654S, -173.7517WA light earthquake with magnitude 4.6 (ml/mb) was detected on Friday, 77 kilometers (48 miles) from Hihifo in Tonga. The 4.6-magnitude earthquake has occurred at 17:07:08 / 5:07 pm (local time epicenter). Exact location, longitude -173.7517° West, latitude -16.654° South, depth = 164.61 km. Event ids that are associated to the earthquake: us6000cqwi. Id of event: us6000cqwi. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 164.61 km (102 miles). Date and time of earthquake in UTC/GMT: 20/11/20 / 2020-11-20 17:07:08 / November 20, 2020 @ 5:07 pm.

Nearest cities/city/towns to hypocenter/epicentrum was Hihifo (min 5000 pop). Epicenter of the event was 78 km (48 miles) from Hihifo (c. 800 pop). Close country/countries that might be effected, Tonga (c. 123 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days five and in the last 365 days fifty-nine earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel anything?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 77 km S of Hihifo, Tonga. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -173.7517° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.654° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 164.61 km Depth of the event in kilometers.
Place 77 km S 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 2020-11-20 17:07:08 Time when the event occurred. UTC/GMT
Updated 2020-11-20 17:27:23 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 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 4.815 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 72 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 us6000cqwi Id of event.
Event Code 6000cqwi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000cqwi, A comma-separated list of event ids that are associated to an event.

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