Can metamorphic rock be formed in ocean floors

yes.

Explanation:

Metamorphism in modern oceanic crust. The most widely recognized variety of ocean-floor metamorphism is that resulting from burial and hydrothermal alteration in the high heat-flow and geothermal regime at mid-ocean ridges. New minerals are produced that show progressive changes with depth.

explanation:

may i ask what challenges?

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.