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5.4MAG

MODERATE EARTHQUAKE

68 km NNE of Kainantu, Papua New Guinea

USGS

A magnitude 5.4 earthquake struck 68 km NNE of Kainantu, Papua New Guinea on 20 Sept 2026, 12:45 UTC. The hypocentre was 116 km below the surface — intermediate by seismological convention. No felt reports have been received so far. The figures have been revised 4 times since the first report. 7 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
116 km

intermediate

Latitude
5.77°S

146.20°E longitude

Time
12:45 UTC

20 Sept 2026

Magnitude
M5.4

mww

EPICENTRE

View the official report

MAGNITUDE 5.4

Can damage poorly constructed buildings; well-built structures usually escape with little harm.

The scale is logarithmic: this released about 130 times the energy of a magnitude 4.0, roughly the energy of 2 thousand tonnes of TNT.

116 KM DEEP

At this depth the energy spreads before it reaches the surface. Shaking is usually weaker than a shallow earthquake of the same size, but it can be felt across a wider area.

NEARBY IN THE PAST 30 DAYS

7 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 6.4.

OTHER RECENT EARTHQUAKES

M5.4 earthquake — Kainantu, Papua New Guinea · Quakewire