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M5.0 Earthquake near Port-Vila, Vanuatu — 17 December 2025

A moderate earthquake of magnitude 5.0 was recorded near Port-Vila, Vanuatu on , with an epicentre 84 km south-southeast of Port-Vila, at a focal depth of 95.1 km. It ranked as the 2nd strongest of 13 earthquakes recorded in Vanuatu in the preceding 30 days.

5.0 Moderate

Time (UTC): 2025-12-17 22:30:07

Time (your timezone): —

Magnitude: 5.0 (moderate)

Focal depth: 95.1 km (intermediate)

Epicentre: -18.4597, 168.5710

Location: 84 km SSE of Port-Vila, Vanuatu

Country: Vanuatu

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 5.0 earthquake radiates roughly 477 tons of TNT equivalent in seismic energy.

The USGS assigns this earthquake a significance score of 386, 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 09:44 local solar time at the epicentre, during the morning.

This event was deeper than 58% of the 282 earthquakes recorded in Vanuatu in our catalogue and stronger than 61% of them.

Where was the epicentre?

The epicentre was located at -18.4597, 168.5710 — 84 km south-southeast of Port-Vila. The closest other recorded event was a magnitude 5.2 earthquake 34 km southeast of here on 01 January 2026.

The nearest other settlements in our records are Malorua (90 km north-northwest), Ipota (95 km southeast), Port Vila (96 km north-northwest) and Isangel (211 km south).

Why the 95 km depth matters

At 95 km this was an intermediate-depth earthquake. Energy from events at this depth spreads out before it reaches the surface, which usually means weaker shaking near the epicentre than a shallow quake of the same magnitude, but shaking felt across a wider area.

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 intermediate depth normally reduces peak shaking near the epicentre compared with a shallow event of the same magnitude.

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 M5.0 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; 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.

132 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 7.3 event near Port-Vila on 17 December 2024. This M5.0 event released about 2,818 times less energy than that event.

42 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 December 2025 worldwide record, and of earthquakes in Vanuatu during December 2025. Browse the full monthly archive to compare periods.

Nearest recorded earthquakes to this epicentre

Other recent earthquakes in Vanuatu

All recorded earthquakes in Vanuatu →

Other magnitude 5 earthquakes worldwide

All magnitude 5 earthquakes →

Questions about this earthquake

How strong was the earthquake near Port-Vila?

It measured magnitude 5.0 — a moderate earthquake. A magnitude 5.0 earthquake radiates roughly 477 tons of TNT equivalent in seismic energy.

How deep was the earthquake near Port-Vila?

The focus was 95 km below the surface, which counts as intermediate.

Was the Port-Vila earthquake felt at the surface?

At magnitude 5.0 and a focal depth of 95 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.

When did the earthquake near Port-Vila happen?

17 December 2025 at 22:30 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 Port-Vila?

132 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 7.3 event near Port-Vila on 17 December 2024. This M5.0 event released about 2,818 times less energy than that event.