Now go find some seafloor coesite or suevite.
"Chatterjee... argued that the Shiva Crater was actually one-half of a larger crater... (split by continental shifting)... Chaterjee and Rudra speculate both craters may have been caused by chunks of the same meteor striking in different locations 12 hours apart as the earth rotated."
It's more likely that the Seychelles crater (if such exists) was made by a third part of a fragmented (or fragmenting) body.