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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.7 mag, 49 km S of Ialibu, Papua New Guinea


Earthquake location -6.7181S, 144.0785WA light earthquake with magnitude 4.7 (ml/mb) was reported 49 kilometers (30 miles) from Ialibu in Papua New Guinea on Wednesday. The temblor was reported at 02:13:02 / 2:13 am (local time epicenter). Unique identifier: us6000rivu. Ids that are associated to the event: us6000rivu. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 144.0785° East, latitude -6.7181° South, depth = 10 km. Global time and date of event 01/10/25 / 2025-10-01 02:13:02 / October 1, 2025 @ 2:13 am UTC/GMT. The epicenter was at a depth of 10 km (6 miles).

The epicenter was 97 km (60 miles) from Mount Hagen (c. 33 600 pop), 77 km (48 miles) from Mendi (c. 26 300 pop), 49 km (31 miles) from Ialibu (c. 6 900 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Mount Hagen, Mendi, Ialibu. Close country/countries that might be effected, Papua New Guinea (c. 6 065 000 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 one, in the past 30 days one and in the last 365 days three earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

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: 49 km S of Ialibu, Papua New Guinea.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude 144.0785° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -6.7181° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 49 km S of Ialibu, Papua New Guinea Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-10-01 02:13:02 Time when the event occurred. UTC/GMT
Updated 2025-10-25 21:56:10 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 340 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 39 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 4.053 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 103 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 us6000rivu Id of event.
Event Code 6000rivu An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rivu, A comma-separated list of event ids that are associated to an event.

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