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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Port-Vila in Vanuatu

Posted by admin on October 20, 2025 0 Comments

Earthquake location -17.97S, 168.0972WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 34 kilometers (21 miles) from Port-Vila in Vanuatu. Event id: us6000ribi. Ids that are associated to the earthquake: us6000ribi. Exact time and date of event in UTC/GMT: 28/09/25 / 2025-09-28 22:18:34 / September 28, 2025 @ 10:18 pm. The 4.5-magnitude earthquake has occurred at 22:18:34 / 10:18 pm (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, depth 35 km, 168.0972° East, -17.97° South. The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface.

Nearby country/countries, Vanuatu (c. 222 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Port-Vila. Earthquake epicenter was 35 km (22 miles) from Port-Vila (c. 35 900 pop).

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 two, in the past 30 days five and in the last 365 days one hundred and thirty-four earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light quakes in the world each year.

Did you feel anything?

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: 34 km SW of Port-Vila, Vanuatu.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 168.0972° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -17.97° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 34 km SW of Port-Vila, Vanuatu Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-09-28 22:18:34 Time when the event occurred. UTC/GMT
Updated 2025-10-20 21:26:30 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 312 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 4.366 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.41 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 165 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 us6000ribi Id of event.
Event Code 6000ribi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000ribi, A comma-separated list of event ids that are associated to an event.

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