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Shifting Ground

Simeulue Island, off the north coast of Sumatra, was changed by the Indian Ocean Tsunami—in ways both immediately obvious, and not. The rupture that caused the December 2004 earthquake also brought about a balance of uplift and subsidence along the Sunda Megathrust that thrust Simeulue out of the water. Three months later, a second tsunami hit southern Simeulue. Wave heights were higher in some locations than they had been in December, but parts of the island sustained less damage because land once submerged was uplifted by December’s tectonic event, thus increasing its height above sea level and making it less susceptible to collatoral damage in the March 28 2005 tsunami.

Just thought that was interesting.

Below documented is some of the "new" landscape consequent of Simelue's new topography.

Simeulue Island, Aceh, Sumatra Simeulue Island, Aceh, Sumatra Simeulue Island, Aceh, Sumatra
Simeulue Island, Aceh, Sumatra Simeulue Island, Aceh, Sumatra Simeulue Island, Aceh, Sumatra
Simeulue Island, Aceh, Sumatra Simeulue Island, Aceh, Sumatra Simeulue Island, Aceh, Sumatra

Meltzner, Sieh, Abrams, Agnew, Hudnut, Avouac, Natawidjaja. “Uplift and subsidence associated with the great Aceh-Andaman earthquake of 2004.” Journal of Geophysical Research, Vol. 111, B02407, 8 PP., 2006.

McAdoo, Dengler, Prasetya, Titovd. “Smong: How an Oral History Saved Thousands on Indonesia’s Simeulue Island during the December 2004 and March 2005 Tsunamis.” Earthquake Spectra, Volume 22, No. S3, pages S661–S669, June 2006.

Sieh, Kerry. “The Sunda Megathrust—Past Present and Future.” Journal of Earthquake and Tsunami (JET), Volume: 1, Issue: 1 (2007) pp. 1-19.