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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag strikes near Nuku‘alofa in Tonga

Posted by admin on November 22, 2020 0 Comments

Earthquake location -19.4835S, -176.6184WA light earthquake magnitude 4.6 (ml/mb) has occurred on Tuesday, 235 km NW of Nuku‘alofa, Tonga (146 miles). The temblor was reported at 13:17:54 / 1:17 pm (local time epicenter). Event ids that are associated to the earthquake: us6000cqsh. Id of event: us6000cqsh. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 17/11/20 / 2020-11-17 13:17:54 / November 17, 2020 @ 1:17 pm. Exact location of event, longitude -176.6184 West, latitude -19.4835 South, depth = 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 235 km NW of Nuku‘alofa, Tonga.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -176.6184° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.4835° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 235 km NW 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 2020-11-17 13:17:54 Time when the event occurred. UTC/GMT
Updated 2020-11-22 21:54:23 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 5.34 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.52 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 141 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 us6000cqsh Id of event.
Event Code 6000cqsh An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000cqsh, A comma-separated list of event ids that are associated to an event.

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