南海トラフ
nankai torafuA major subduction zone off the coast of southwestern Japan, known for generating large earthquakes and tsunamis.
南海トラフ巨大地震は数十年に一度発生する可能性がある。
A mega-earthquake in the Nankai Trough could occur once every several decades.
The Nankai Trough is a critical area for seismic research due to its potential for catastrophic earthquakes.
Related Phrases
💡Pro Tip
Geological Significance
The Nankai Trough is a subduction zone where the Philippine Sea Plate is subducting beneath the Eurasian Plate, making it a high-risk area for seismic activity.
⚡Gold Rule
Scientific Context
Always use '南海トラフ' in technical discussions about seismology or geology in Japan.
📖Word Origin
Composed of '南海' (Nankai, meaning 'South Sea') and 'トラフ' (trough, a geological term for a depression in the ocean floor).
📝Usage Notes
The term is primarily used in scientific and disaster preparedness contexts in Japan.