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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag has occurred near Nuku‘alofa in Tonga

Posted by admin on December 6, 2020 0 Comments

Earthquake location -20.1594S, -175.7188WA light earthquake magnitude 4.4 (ml/mb) strikes 121 km NNW of Nuku‘alofa, Tonga (75 miles) on Monday. Exact location of event, depth 201.21 km, -175.7188° West, -20.1594° South. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 14:23:05 / 2:23 pm (local time epicenter). Event id: us7000cmll. Ids that are associated to the earthquake: us7000cmll. Date and time of earthquake in UTC/GMT: 30/11/20 / 2020-11-30 14:23:05 / November 30, 2020 @ 2:23 pm. The epicenter of the earthquake was roughly 201.21 km (125 miles) below the earth’s surface.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days four and in the last 365 days twenty-four earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

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: 121 km NNW of Nuku‘alofa, Tonga.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -175.7188° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.1594° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 201.21 km Depth of the event in kilometers.
Place 121 km NNW of Nuku‘alofa, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-11-30 14:23:05 Time when the event occurred. UTC/GMT
Updated 2020-12-06 20:32:28 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 298 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 6.364 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 196 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 us7000cmll Id of event.
Event Code 7000cmll An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000cmll, A comma-separated list of event ids that are associated to an event.

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