M6.1 earthquake hits Vanuatu at intermediate depth
Image credit: TW/SAM, Google
A strong earthquake registered by the USGS as M6.1 hit Vanuatu at 14:40 UTC on September 28, 2023. The agency is reporting a depth of 127.5 km (79 miles). EMSC is reporting M6.0 at a depth of 126 km (78 miles).
The epicenter was located 60.4 km (37.6 miles) E of Luganville (population 13 397), and 247.7 km (153.9 miles) NNW of Port-Vila (population 35 901), Shefa, Vanuatu.
178 000 people are estimated to have felt light shaking.
The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Overall, the population in this region resides in structures that are highly vulnerable to earthquake shaking, though some resistant structures exist. The predominant vulnerable building types are unknown/miscellaneous types and wood construction.
Recent earthquakes in this area have caused secondary hazards such as landslides that might have contributed to losses.
Estimated population exposure to earthquake shaking
Selected cities exposed
Regional seismicity
Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.
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