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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag has occurred near Neiafu in Tonga

Posted by admin on September 7, 2020 0 Comments

Earthquake location -19.1519S, -173.3142WA light earthquake magnitude 4.3 (ml/mb) strikes 89 kilometers (55 miles) from Neiafu in Tonga on Friday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 01:24:20 / 1:24 am (local time epicenter). Global date and time of event UTC/GMT: 21/08/20 / 2020-08-21 01:24:20 / August 21, 2020 @ 1:24 am. Exact location of event, depth 61.92 km, -173.3142° West, -19.1519° South. The epicenter was at a depth of 61.92 km (38 miles). Id of earthquake: us7000bdrd. Event ids that are associated: us7000bdrd.

Nearest cities/city/towns to hypocenter/epicentrum was Neiafu (min 5000 pop). Close country/countries that might be effected, Tonga (c. 123 000 pop). The epicenter was 90 km (56 miles) from Neiafu (c. 4 300 pop).

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

Did you feel the quake?

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: 89 km SE of Neiafu, Tonga. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -173.3142° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.1519° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 61.92 km Depth of the event in kilometers.
Place 89 km SE of Neiafu, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-08-21 01:24:20 Time when the event occurred. UTC/GMT
Updated 2020-08-27 22:52:37 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 10.892 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 79 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 us7000bdrd Id of event.
Event Code 7000bdrd An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000bdrd, A comma-separated list of event ids that are associated to an event.

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