On 5 April 2007, at around 16:00 EEST (13:00 UTC) the ship ran aground on a well-marked volcanic reef east of Nea Kameni, within the caldera of the Greek island of Santorini, began taking on water, and listed up to 12 degrees to starboard before her watertight doors were reportedly closed (a report which was later refuted when the wreck was examined).
The 1,195 passengers, mostly Americans and 60 Canadians, were initially all reported to be safely evacuated in three-and-a-half hours, with four injuries.
Some passengers, including a group of 77 students from Paisley Magnet School in North Carolina, were evacuated from the car ramp through the former car deck onto boats, but some passengers had to climb down rope ladders from the higher decks.
The ship was towed off the rocks, and her list stabilized.
Later, it was reported that two French passengers were missing.

The large amount of water taken on board led to the ship sinking shortly before 7:00 EEST on 6 April 2007, only a few hundred metres from the shore.
Video footage shows that, toward the end, the ship completely capsized before settling stern first onto the sea floor.
It was later reported that the tip of the bulbous bow was only 62 metres (203 feet) below sea level, but the stern was in water up to 180 metres (590 feet) deep.
It is feared that the wreck would soon slide deeper and sink into the submerged caldera of the volcanic island.

It has been speculated that the deep, almost vertical shore of the bathtub-like caldera made it impossible to beach the ship and save her from becoming a total loss.
On 5 April 2007, at around 16:00 EEST (13:00 UTC) the ship ran aground on a well-marked volcanic reef east of Nea Kameni, within the caldera of the Greek island of Santorini, began taking on water, and listed up to 12 degrees to starboard before her watertight doors were reportedly closed (a report which was later refuted when the wreck was examined). The 1,195 passengers, mostly Americans and 60 Canadians, were initially all reported to be safely evacuated in three-and-a-half hours, with four injuries. Some passengers, including a group of 77 students from Paisley Magnet School in North Carolina, were evacuated from the car ramp through the former car deck onto boats, but some passengers had to climb down rope ladders from the higher decks. The ship was towed off the rocks, and her list stabilized. Later, it was reported that two French passengers were missing.
The large amount of water taken on board led to the ship sinking shortly before 7:00 EEST on 6 April 2007, only a few hundred metres from the shore.Video footage shows that, toward the end, the ship completely capsized before settling stern first onto the sea floor. It was later reported that the tip of the bulbous bow was only 62 metres (203 feet) below sea level, but the stern was in water up to 180 metres (590 feet) deep. It is feared that the wreck would soon slide deeper and sink into the submerged caldera of the volcanic island.
It has been speculated that the deep, almost vertical shore of the bathtub-like caldera made it impossible to beach the ship and save her from becoming a total loss.
MS Sea Diamond