- An earthquake occurred near Pematangsiantar in Sumatra, Indonesia, prompting a tsunami threat assessment.
- A major earthquake and subsequent tsunamis are prompting a large-scale disaster response in Sumatra, involving the National Search and Rescue Agency and media coverage.
- Aftershocks and landslides impacted the island of Sumatra following a major earthquake.
An earthquake struck off Sumatra island on August 18, 2026.
1 report, 1 independent
Updated Aug 18
AI-generated analysis. Brind wrote this summary from the reports listed below. It can be wrong. Each section says how much you can rely on it, and the sources are linked so you can check.
What happened
An earthquake struck off Sumatra island on August 18, 2026.
Who's involved
What this event is mainly aboutHow it developed
Newest first. Tap a step to see who reported it.- An earthquake occurred off Nias Island on August 15, 2026, with the epicenter southeast of South Nias regency.Sub-event
Major earthquake off Sumatra island.1 source
Keep exploring
The entities involved
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Indonesia
island country in Southeast Asia and Oceania
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Sumatra
island in western Indonesia, westernmost of the Sunda Islands
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