When did a tsunami last sink a Royal Navy ship?

When was the last time a Royal Navy ship was lost to a tsunami?

No recent definite case is identified; the answer likely lies far back in the sailing era and would require research to separate tsunami losses from storm wrecks.

The answer is deliberately cautious rather than supplying an unsupported date. Recent British warships have suffered severe weather damage, but an unequivocal tsunami loss appears to lie much further back. The panel suspects that any clear example would come from the sailing era. For older wrecks, surviving evidence may not establish whether a tsunami or a more general storm event caused the sinking.