Tsunami sand thickness and land-surface profile

Figure 7: Tsunami sand thickness and land-surface profile at Arop School transect. The July 17, 1998 tsunami deposited sand across more than 600 m of coastal plain. Tsunami sands were up to 12 cm thick along the transect and thinned at its furthest landward extent. An erosional zone (here about 60 m wide) near the ocean, a thickening of tsunami sands landward of the erosional zone as depositional processes became stronger, and a thinning of tsunami sands near the landward extent of runup were observed at all four transects.