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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.3 mag, 15 km SW of Lae, Papua New Guinea


Earthquake location -6.8261S, 146.9044WA light earthquake magnitude 4.3 (ml/mb) has occurred on Wednesday, 15 kilometers (9 miles) from Lae in Papua New Guinea. Event id: us6000rk90. Ids that are associated to the earthquake: us6000rk90. Date and time of earthquake in UTC/GMT: 08/10/25 / 2025-10-08 16:49:42 / October 8, 2025 @ 4:49 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 146.9044° East, latitude -6.8261° South, depth = 103.358 km. The earthquake occurred at a depth of 103.358 km (64 miles) below the earth’s surface. The temblor was detected at 16:49:42 / 4:49 pm (local time epicenter).

Earthquake epicenter was 15 km (9 miles) from Lae (c. 76 300 pop), 50 km (31 miles) from Bulolo (c. 16 000 pop), 60 km (37 miles) from Wau (c. 14 600 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Wau, Bulolo, Lae. Country/countries that might be effected, Papua New Guinea (c. 6 065 000 pop).

Each year there are an estimated 13,000 light quakes 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 three, in the last 10 days five, in the past 30 days five and in the last 365 days fourty-two earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel the quake?

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: 15 km SW of Lae, Papua New Guinea.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 146.9044° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -6.8261° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 103.358 km Depth of the event in kilometers.
Place 15 km SW of Lae, 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 2025-10-08 16:49:42 Time when the event occurred. UTC/GMT
Updated 2025-10-31 22:53:50 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 2.574 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.33 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 110 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 us6000rk90 Id of event.
Event Code 6000rk90 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rk90, A comma-separated list of event ids that are associated to an event.

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