1. 1946 Nankaido earthquakeHistorical term
Wikipedia definition
2. Nankai megathrust earthquakesThe Nankai megathrust earthquakes are great earthquakes that occur along the fault that forms the plate interface between the subducting Philippine Sea Plate and the overriding Amurian Plate (part of the Eurasian Plate), which dips beneath southwestern Honshu, Japan. All of these great earthquakes have given rise to damaging tsunami.
Read “Nankai megathrust earthquakes” on English Wikipedia
Read “南海地震” on Japanese Wikipedia
Read “Nankai megathrust earthquakes” on DBpedia


to talk about this word.