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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag has occurred near Haveluloto in Tonga

Posted by admin on October 22, 2020 0 Comments

Earthquake location -20.1015S, -177.5241WA light earthquake magnitude 4.2 (ml/mb) strikes 267 km WNW of Haveluloto, Tonga (166 miles) on Sunday. Exact time and date of event in UTC/GMT: 18/10/20 / 2020-10-18 15:24:36 / October 18, 2020 @ 3:24 pm. Event ids that are associated to the earthquake: us6000cbgx. Id of event: us6000cbgx. Exact location of event, longitude -177.5241 West, latitude -20.1015 South, depth = 554.61 km. The temblor was reported at 15:24:36 / 3:24 pm (local time epicenter). The epicenter of the earthquake was roughly 554.61 km (345 miles) below the earth’s surface. 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 two, in the last 10 days five, in the past 30 days eleven and in the last 365 days one hundred and thirty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

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: 267 km WNW of Haveluloto, Tonga.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -177.5241° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.1015° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 554.61 km Depth of the event in kilometers.
Place 267 km WNW of Haveluloto, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-18 15:24:36 Time when the event occurred. UTC/GMT
Updated 2020-10-22 18:49:10 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 271 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 4.798 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.37 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 69 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 us6000cbgx Id of event.
Event Code 6000cbgx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000cbgx, A comma-separated list of event ids that are associated to an event.

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