CNN Web Brief #2

Largest underwater volcano could trigger tsunami

With the right seismic activity the walls of Marsili volcano would crumble causing a tsunami to hit southern Italy.

Researchers have found that portions of the Marsili volcano have already collapsed. The volcano collapsing would be catastrophic for areas including Siciliy and Sardinia. It would release thousands of tons of magma that would trigger the tsunami.

"A rupture of the walls would let loose millions of cubic meters of material capable of generating a very powerful wave," said Enzo Bosch Boschi, president of the National Institute of Geophysics and Volcanology.

The Tyrrhenian Sea, the location of Marsili, has past evidence of tsunamis.