Active Fault and Paleoearthquake Researches No. 8 (2008)

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Research on tsunami deposits in Thailand

Top: A dug pit in Phra Thong Island, south Thailand. Grey part is tsunami sandy deposits and brown is peat. Upper deposit is generated from the 2004 tsunami and lower is from previous tsunami (postdating 550-700 yBP).
Bottom left: There remains a lot of piles of tin mining in Phra Thong Island. The piles produce sand streak, of which direction (west-east) is consistent with tsunami from Indian Ocean.
Bottom right: Phuket coast in 2007. A sign cautions people to evacuate to high ground when earthquake occurs. (photo by Yuki Sawai)