Why Is Venice Sinking? | Reference.com
Venice is sinking because the
Adriatic plate underneath the city is subducting (
the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.) beneath the Apennines Mountains due to plate tectonics and the slow
compaction of the sediments that support the city.
...Historically, pumping groundwater from beneath the city also contributed to the sinking, but such pumping was stopped.
Venice is sinking at a rate of approximately 0.08 inches per year.
The sea level around Venice is rising at almost the same rate, exacerbating the problem.
Both the city and the land of the surrounding lagoons is sinking..."
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