Government or official record
The 2004 Indonesian Tsunami
NOAA National Environmental Satellite, Data, and Information Service
Where this source supports the record
Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.
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Natural disasters · 26 December 2004Open article references →
Indian Ocean Earthquake and Tsunami
Banda Aceh tsunami disaster area · Indonesia
Why editors use it hereScientific overview and modeled visualization of the magnitude 9.1 source, wave propagation, height, speed, and mortality.
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Quick read
On 26 December 2004, a magnitude 9.1 megathrust earthquake ruptured a vast section of the seafloor west of northern Sumatra.
Reviewed 4 August 2026 -
Trigger and conditions
A rupture extended roughly northward from off Sumatra for more than a thousand kilometers, vertically displacing the seabed.
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Uncertainty
Magnitude estimates were revised as scientists measured the unusually long rupture.
Reviewed 4 August 2026 -
Why it matters
The 2004 tsunami was a single geophysical event experienced through many languages, governments, coastlines, and social conditions.
Reviewed 4 August 2026
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Quick read