Simplify the following text for a Grade 7 native English-speaking person.
Original: Two large seagoing steamers have sunk after hitting the Hyppolyte Rock off its east coast - the Tasman in 1883 and the Nord in 1915 .
Simplified: Two large steam ships have sunk after hitting the Hyppolyte Rocks off the east coast - the Tasman in 1883 and the Nord in 1915 .