203 km NW of Port-Olry, Vanuatu

This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre.

At this magnitude and depth, people at rest would likely notice it out to about 310 km (193 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 7.6 kilotons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.8 would have released about 32 times as much.

1. Ridgecrest, California 2019 M 7.1 89× the energy of this one
2. Loma Prieta, California 1989 M 6.9 45× the energy of this one
3. Northridge, California 1994 M 6.7 22× the energy of this one
4. This earthquake M 5.8 about 7.6 kilotons of TNT
5. Magna, Utah 2020 M 5.7 this one released 1.4× more
6. Around the size people start to feel M 3.0 this one released 16,000× more

Energy from the Gutenberg–Richter relation (log₁₀E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km in our catalogue was M 6.9 on 2026-10-24 — about 45 times the energy of this one.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre -13.9017, 165.5967. Map © OpenStreetMap contributors.

Aftershocks so far

8 earthquakes have been recorded within 50 km since this one.

1. 5.3 174 km NW of Port-Olry, Vanuatu 06:04 UTC
2. 4.5 175 km NW of Port-Olry, Vanuatu 05:37 UTC
3. 4.5 184 km NW of Port-Olry, Vanuatu 05:35 UTC
4. 5.8 182 km NW of Port-Olry, Vanuatu 05:23 UTC
5. 4.8 219 km WNW of Port-Olry, Vanuatu 05:10 UTC
6. 5.1 217 km NW of Port-Olry, Vanuatu 04:49 UTC
7. 5.0 161 km NW of Port-Olry, Vanuatu 04:44 UTC
8. 5.3 216 km W of Sola, Vanuatu 04:19 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 06:29 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

On USGS

• The official USGS event page — the source of record for every value above
• Did you feel it? Report it to USGS — reports go to USGS, not to us
• ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.