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BMKG Lifts Tsunami Warning After 19-30cm Sea Rise

8/15/2026

36 5 Full Breakdown

Summary

Story summary

A magnitude 7.7 earthquake struck off Flores Island on August 15 2026, epicenter 68 km north-northwest of Ende at 10 km depth.
The quake prompted a tsunami warning for East and West Nusa Tenggara, South Sulawesi and Southeast Sulawesi and forced coastal residents to evacuate inland over 2 km or to hills at least 10 m high.
BMKG lifted the warning after sea-level rise reached only 19-30 cm, reporting two deaths and two injuries.

History

Historical Context

After the 26 December 2004 Sumatra-Andaman quake, a 9.2–9.3 megathrust that killed roughly 227,898 people and prompted the UN OCHA-coordinated response and a $14 billion global relief effort, Indonesia built its first Indian Ocean tsunami warning system. When a magnitude 7.7 quake struck off Flores on 15 August 2026, BMKG issued a warning, though sea levels rose only 19–30 cm, highlighting ongoing seismic risk.

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Story summary

A magnitude 7.7 earthquake struck off Flores Island on August 15 2026, epicenter 68 km north-northwest of Ende at 10 km depth.
The quake prompted a tsunami warning for East and West Nusa Tenggara, South Sulawesi and Southeast Sulawesi and forced coastal residents to evacuate inland over 2 km or to hills at least 10 m high.
BMKG lifted the warning after sea-level rise reached only 19-30 cm, reporting two deaths and two injuries.

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