Ocean currents act much like a conveyor belts, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.
Yes it is very possible for it to occur since it could be one of the deadliest and most affective earthquakes which can occur at any time every 100 years
