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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Hihifo in Tonga


Earthquake location -16.1783S, -174.3008WA light earthquake magnitude 4.3 (ml/mb) strikes 59 kilometers (37 miles) from Hihifo in Tonga on Friday. The epicenter of the earthquake was roughly 175.637 km (109 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 28/06/24 / 2024-06-28 02:15:10 / June 28, 2024 @ 2:15 am. The 4.3-magnitude earthquake was detected at 02:15:10 / 2:15 am (local time epicenter). Event id: us7000mx7v. Ids that are associated to the earthquake: us7000mx7v. Exact location of event, longitude -174.3008 West, latitude -16.1783 South, depth = 175.637 km.

Epicenter of the earthquake was 59 km (37 miles) from Hihifo (c. 800 pop). Nearby country/countries that might be effected, Tonga (c. 123 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Hihifo.

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. In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days eight and in the last 365 days eighteen earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 59 km WSW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -174.3008° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.1783° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 175.637 km Depth of the event in kilometers.
Place 59 km WSW 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 2024-06-28 02:15:10 Time when the event occurred. UTC/GMT
Updated 2024-07-05 21:10:32 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 17 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.318 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.34 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 140 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 us7000mx7v Id of event.
Event Code 7000mx7v An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000mx7v, A comma-separated list of event ids that are associated to an event.

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