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M5.3 Earthquake near Kokopo, Papua New Guinea — 14 October 2025

A moderate earthquake of magnitude 5.3 was recorded near Kokopo, Papua New Guinea on , with an epicentre 206 km east-northeast of Kokopo, at a focal depth of 444.1 km. It ranked as the 6th strongest of 24 earthquakes recorded in Papua New Guinea in the preceding 30 days.

5.3 Moderate

Time (UTC): 2025-10-14 19:32:40

Time (your timezone): —

Magnitude: 5.3 (moderate)

Focal depth: 444.1 km (deep)

Epicentre: -3.7244, 154.0190

Location: 206 km ENE of Kokopo, Papua New Guinea

Country: Papua New Guinea

USGS link to NOAA tsunami information: Not linked

Review status: Reviewed

Source: USGS event page

How strong was this earthquake?

Moderate earthquakes can damage poorly built or unreinforced structures near the epicentre, while well-engineered buildings typically escape serious harm. Shaking is often strong enough to wake sleeping residents over a wide area.

A magnitude 5.3 earthquake radiates roughly 1,344 tons of TNT equivalent in seismic energy.

The USGS assigns this earthquake a significance score of 432, which is below the USGS threshold of more than 600 for its significant-earthquake list. The ranking combines magnitude with available Did You Feel It responses and PAGER alert level; it is not a direct measurement of damage.

What the magnitude scale actually measures →

When it happened locally

That is about 05:48 local solar time at the epicentre, around dawn.

This event was deeper than 99% of the 549 earthquakes recorded in Papua New Guinea in our catalogue and stronger than 89% of them.

Where was the epicentre?

The epicentre was located at -3.7244, 154.0190 — 206 km east-northeast of Kokopo. The closest other recorded event was a magnitude 4.6 earthquake 82 km south of here on 03 January 2026.

The nearest other settlements in our records are Kieta (124 km east), Arawa (171 km southeast), Rabaul (180 km west-southwest) and Panguna (222 km south).

Why the 444 km depth matters

At 444 km this was a deep-focus earthquake, occurring well inside the subducting slab rather than in the crust. Deep events are rarely damaging even at large magnitudes, though they can be felt over very long distances.

This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size can be felt widely and may cause minor local damage. Its deep focus normally weakens surface shaking while spreading perceptible motion over a broad area.

Read more on how focal depth changes what you feel →

What does the tsunami information flag mean?

The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M5.3 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; its 444 km focal depth is too great to deform the sea floor significantly; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.

How earthquakes generate tsunamis, and what the alert levels mean →

Aftershocks and local seismic history

No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.

71 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.2 event near Kokopo on 12 April 2025. This M5.3 event released about 22 times less energy than that event.

2 earthquakes have been recorded within 100 km of this epicentre in the past year, 0 of them in the past 30 days.

How long aftershock sequences last, and how large they get →

Where this event sits in the record

This earthquake is part of the October 2025 worldwide record, and of earthquakes in Papua New Guinea during October 2025. Browse the full monthly archive to compare periods.

Nearest recorded earthquakes to this epicentre

Other recent earthquakes in Papua New Guinea

All recorded earthquakes in Papua New Guinea →

Other magnitude 5 earthquakes worldwide

All magnitude 5 earthquakes →

Questions about this earthquake

How strong was the earthquake near Kokopo?

It measured magnitude 5.3 — a moderate earthquake. A magnitude 5.3 earthquake radiates roughly 1,344 tons of TNT equivalent in seismic energy.

How deep was the earthquake near Kokopo?

The focus was 444 km below the surface, which counts as deep.

Was the Kokopo earthquake felt at the surface?

At magnitude 5.3 and a focal depth of 444 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.

When did the earthquake near Kokopo happen?

14 October 2025 at 19:32 UTC.

Was there a tsunami?

No. The USGS record carries no tsunami-information link for this event.

Have there been aftershocks?

No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.

How often do earthquakes happen near Kokopo?

71 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.2 event near Kokopo on 12 April 2025. This M5.3 event released about 22 times less energy than that event.