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Light earthquake, 4.8 mag was detected near Haveluloto in Tonga

Posted by admin on December 20, 2020 0 Comments

Earthquake location -20.3325S, -177.6557WA light earthquake magnitude 4.8 (ml/mb) has struck on Sunday, 270 km WNW of Haveluloto, Tonga (168 miles). The earthquake was roughly at a depth of 562.54 km (350 miles). The 4.8-magnitude earthquake was detected at 14:54:22 / 2:54 pm (local time epicenter). Unique identifier: us7000cspq. Ids that are associated to the event: us7000cspq. Exact location of event, longitude -177.6557 West, latitude -20.3325 South, depth = 562.54 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 20/12/20 / 2020-12-20 14:54:22 / December 20, 2020 @ 2:54 pm.

Each year there are an estimated 13,000 light quakes in the world. 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 five, in the past 30 days ten and in the last 365 days one hundred and fifty-seven earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 270 km WNW of Haveluloto, Tonga.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -177.6557° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.3325° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 562.54 km Depth of the event in kilometers.
Place 270 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 2020-12-20 14:54:22 Time when the event occurred. UTC/GMT
Updated 2020-12-20 15:19:49 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 354 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 4.806 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 113 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 us7000cspq Id of event.
Event Code 7000cspq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000cspq, A comma-separated list of event ids that are associated to an event.

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