Magnitude 7.7 Earthquake Triggers Tsunami Warning for Three Indonesian Provinces
The quake struck at a depth of 15 km early on Aug. 15, 2026; Indonesia's BMKG lifted its tsunami warning at 8:30 a.m. WITA.
3 reports on this incident · first at Aug 16, 2026, 7:25 p.m. ET
Earlier reports
Aug 16, 2026, 8:56 p.m. ET
Indonesia's BMKG Lifts Tsunami Warning After Magnitude 7.7 Earthquake
Indonesia's Meteorology, Climatology and Geophysics Agency (BMKG) issued a tsunami warning for coastal areas of East Nusa Tenggara, West Nusa Tenggara and South Sulawesi following a magnitude 7.7 earthquake on August 15, 2026. BMKG lifted the warning at 8:30 a.m. WITA.
The earthquake occurred at 5:58 a.m. WITA (UTC+8) on August 15, 2026, at a depth of 15 km.
The record behind this report does not establish where the quake struck. The three provinces named above are the areas BMKG placed under its tsunami warning; they are not a statement of the epicentre's location. No casualty or damage figures are carried in that record either, and none are asserted here.
Aug 16, 2026, 7:25 p.m. ETFirst report
Magnitude 7.7 Earthquake Triggers BMKG Tsunami Warning, Lifted at 8:30 a.m. WITA
A magnitude 7.7 earthquake occurred at 5:58 a.m. local time on Aug. 15, 2026 — recorded as 2026-08-15T05:58:00+08:00 — at a depth of 15 km.
Indonesia's Meteorology, Climatology and Geophysics Agency (BMKG) issued a tsunami warning. The warning covered coastal areas of East Nusa Tenggara, West Nusa Tenggara and South Sulawesi, and was lifted at 8:30 a.m. WITA.
The location of the epicenter is not specified in the record this report is based on. No place name is carried for the quake itself; the only geographic detail available is the set of coastal areas the BMKG warning covered. That record likewise contains no information on casualties, damage or shaking intensity, and none is asserted here.
The source links below carry the underlying reporting on the event.
Was this report accurate and useful?
Sources
- Two dead after 7.7-magnitude quake strikes Indonesia's E Nusa Tenggaraen.antaranews.com
- Lombok residents feel strong shaking from magnitude 7.7 quake en.antaranews.com
Revision history
- Version 116 Aug 2026, 23:25current
First published.
- Version 117 Aug 2026, 01:56current
First published.
- Version 117 Aug 2026, 00:56current
First published.
How we work
This site models an investigative reporter rather than a wire desk. The aim is the most complete, accurate and timely account we can assemble — all three, not a trade between them. Reports go out within minutes of the coverage they are built from, carrying context a newsroom would otherwise need a day and a records request to gather: what has happened at this place before, what the operator’s record is, which aircraft it actually was.
Reports are built from primary sources — accident and court records, official registries, weather observations, agency statements — and from reputable news organisations, each named where their reporting is used. Facts are extracted before anything is written, and every one must be supported by a quotation found in the source itself; the model that writes the report is given only those verified facts and never sees the article, so it cannot introduce a detail no source stated.
Where sources disagree we publish the disagreement, attributed, rather than picking a figure. Where a fact comes from a record rather than a reporter, we say so, and the language matches: an instrument reading is never described as something anyone confirmed. Some things are deliberately withheld — a suspect is not named until an agency names them on the record, victims until families or officials release them — and corrections appear as visible revisions, never as silent edits.
None of that makes a report true. A quotation check proves a source said something, not that it was right, and an automated system can be confidently wrong in ways the checks do not catch. If something here is wrong, the feedback above is how it gets found. The full methodology, including what we refuse to publish.