The bulk carrier that broke up in a storm on the Black Sea was designed for use on rivers not the open sea !Black smoke happen when you give full throttle on diesel engines. the Turbochargers need time to increase speed to give enough air to the engines.I love the image of two huge cargo ships plowing into eachother then stopping in the middle of the ocean so the captains can exchange insurance information.Those fishing boats are every aware of the tsunamis, they’re just trying to get to the ocean quicker as then they avoid the waves.