Nankai Trough
subduction — 700 km
The Nankai Trough runs along the southern coast of Japan where the Philippine Sea Plate subducts beneath the Eurasian Plate. Historical records show devastating earthquakes every 100-200 years, and the next major rupture could produce a M9+ event with a massive tsunami.
Type
subduction
Length
700 km
Countries
1
Cities at Risk
4
Risk Assessment
70-80% chance of M8-9 within 30 years
Last Major Earthquake
M8.1 — Nankaido, Japan (1946-12-21)
Affected Countries
Cities Near This Fault
Data: USGS Earthquake Hazards Program