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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Hihifo in Tonga

Earthquake location -15.8599S, -174.545WA light earthquake magnitude 4.2 (ml/mb) strikes 80 kilometers (50 miles) from Hihifo in Tonga on Wednesday. The temblor was reported at 08:44:38 / 8:44 am (local time epicenter). The earthquake occurred at a depth of 200.912 km (125 miles) below the earth’s surface. Exact time and date of earthquake 01/05/24 / 2024-05-01 08:44:38 / May 1, 2024 @ 8:44 am UTC/GMT. Event id: us6000mx9i. Ids that are associated to the earthquake: us6000mx9i. Exact location of event, depth 200.912 km, -174.545° West, -15.8599° South. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Epicenter of the event was 81 km (50 miles) from Hihifo (c. 800 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Hihifo. Close country/countries that might be effected, Tonga (c. 123 000 pop).

Each year there are an estimated 13,000 light earthquakes 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 four, in the last 10 days seven, in the past 30 days seven and in the last 365 days seven earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel anything?

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: 80 km W of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -174.545° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.8599° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 200.912 km Depth of the event in kilometers.
Place 80 km W 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 2024-05-01 08:44:38 Time when the event occurred. UTC/GMT
Updated 2024-05-30 12:19:05 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 27 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.301 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 62 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 us6000mx9i Id of event.
Event Code 6000mx9i An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000mx9i, A comma-separated list of event ids that are associated to an event.

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