Depression Caused by Collapse of Land Surface
This page is the CodyCross answer for the clue below from Welcome to Japan, Group 565, Puzzle 2 (Hiroshima Peace Memorial).
Question is: Depression Caused by Collapse of Land Surface
and the answer is: SINKHOLE
Word Meaning:
SINKHOLE — (geology) A hole formed in soluble rock by the action of water, serving to conduct surface water to an underground passage.
Definitions from Wiktionary.