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Light earthquake: M4.2 quake has struck near Haveluloto in Tonga

Posted by admin on May 29, 2020 0 Comments

Earthquake location -20.8381S, -178.557WA light earthquake magnitude 4.2 (ml/mb) strikes 349 km W of Haveluloto, Tonga (217 miles) on Tuesday. The 4.2-magnitude earthquake has occurred at 00:12:52 / 12:12 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -178.557 West, latitude -20.8381 South, depth = 601.33 km. Date and time of earthquake in UTC/GMT: 19/05/20 / 2020-05-19 00:12:52 / May 19, 2020 @ 12:12 am. The epicenter of the earthquake was roughly 601.33 km (374 miles) below the earth’s surface. Event id: us6000a00y. Ids that are associated to the earthquake: us6000a00y.

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

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: 349 km W of Haveluloto, Tonga.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -178.557° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.8381° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 601.33 km Depth of the event in kilometers.
Place 349 km W 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 2020-05-19 00:12:52 Time when the event occurred. UTC/GMT
Updated 2020-05-29 03:23:27 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 4.44 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 85 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 us6000a00y Id of event.
Event Code 6000a00y An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000a00y, A comma-separated list of event ids that are associated to an event.

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