Complex sentence: Distress rockets were fired after seeing a ships light nearby, but assistance did not come and at 10pm the "Clan Ranald" capsized and sank in 20 meters of water about 700 meters from the shore, pitching the crew into the sea.
Split into simpler sentences: Distress rockets were fired after seeing a ships light nearby, but assistance did not come. At 10pm the "Clan Ranald" capsized and sank in 20 meters of water about 700 meters from the shore, pitching the crew into the sea.