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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.3 mag, 79 km ESE of Hihifo, Tonga

Posted by admin on September 24, 2020 0 Comments

Earthquake location -16.1579S, -173.0847WA light earthquake with magnitude 4.3 (ml/mb) was reported 79 kilometers (49 miles) from Hihifo in Tonga on Sunday. Global time and date of event 20/09/20 / 2020-09-20 04:27:10 / September 20, 2020 @ 4:27 am UTC/GMT. Id of earthquake: us6000c0lj. Event ids that are associated: us6000c0lj. The epicenter of the earthquake was roughly 16.23 km (10 miles) below the earth’s surface. Exact location of earthquake, -173.0847° West, -16.1579° South, depth 16.23 km. The temblor was picked up at 04:27:10 / 4:27 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest cities/city/towns to hypocenter/epicentrum was Hihifo (min 5000 pop). Nearby country/countries that might be effected, Tonga (c. 123 000 pop). The epicenter was 79 km (49 miles) from Hihifo (c. 800 pop).

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days nine and in the last 365 days seventy-seven 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.

Did you feel the quake?

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 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: 79 km ESE of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -173.0847° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.1579° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 16.23 km Depth of the event in kilometers.
Place 79 km ESE of Hihifo, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-09-20 04:27:10 Time when the event occurred. UTC/GMT
Updated 2020-09-24 20:48:14 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 284 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 2.565 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 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 us6000c0lj Id of event.
Event Code 6000c0lj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000c0lj, A comma-separated list of event ids that are associated to an event.

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