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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.3 mag, 77 km SW of Hihifo, Tonga

Posted by admin on December 2, 2020 0 Comments

Earthquake location -16.5144S, -174.2372WA light earthquake with magnitude 4.3 (ml/mb) was detected on Friday, 77 kilometers (48 miles) from Hihifo in Tonga. Event id: us7000cg6v. Ids that are associated to the earthquake: us7000cg6v. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -174.2372 West, latitude -16.5144 South, depth = 110.43 km. The earthquake was roughly at a depth of 110.43 km (69 miles). The 4.3-magnitude earthquake has occurred at 07:15:35 / 7:15 am (local time epicenter). Date and time of earthquake in UTC/GMT: 13/11/20 / 2020-11-13 07:15:35 / November 13, 2020 @ 7:15 am.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Hihifo. Earthquake epicenter was 78 km (49 miles) from Hihifo (c. 800 pop). 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. Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been six, in the last 10 days eight, in the past 30 days twelve and in the last 365 days fifty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel it?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 77 km SW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -174.2372° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.5144° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 110.43 km Depth of the event in kilometers.
Place 77 km SW 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 2020-11-13 07:15:35 Time when the event occurred. UTC/GMT
Updated 2020-12-02 08:40:51 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 284 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 4.832 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.3 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 80 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 us7000cg6v Id of event.
Event Code 7000cg6v An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000cg6v, A comma-separated list of event ids that are associated to an event.

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