Problem: Explain in great detail the tectonic regime you think is going on here (i.e., is it continental rifting, subduction, mid-ocean ridge, hot spot, continental collision, etc.?); Where is it? What types and names of plates are involved here?
In great detail, tell me ALL you know about this kind of tectonic boundary, based on the multiple lectures on Tectonics and first part of Earthquakes and of Volcanoes.