← Evidence Library

Academic research

The size and duration of the Sumatra-Andaman earthquake from far-field static offsets

Science

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.

  1. Natural disasters · 26 December 2004

    Indian Ocean Earthquake and Tsunami

    Banda Aceh tsunami disaster area · Indonesia

    Open article references →
    Why editors use it here

    Peer-reviewed geophysical analysis using distant GPS offsets to constrain the earthquake's exceptional scale and duration.

    1. 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
    2. Trigger and conditions

      A rupture extended roughly northward from off Sumatra for more than a thousand kilometers, vertically displacing the seabed.

      Reviewed 4 August 2026
    3. Uncertainty

      Magnitude estimates were revised as scientists measured the unusually long rupture.

      Reviewed 4 August 2026
    4. Why it matters

      The 2004 tsunami was a single geophysical event experienced through many languages, governments, coastlines, and social conditions.

      Reviewed 4 August 2026