Ocean energy distribution forecast map for the 2011 Sendai earthquake from the U.S. NOAA. Image source: NOAA
The Pacific plate is one of many possible tsunamigenic quake sources, and scientists believe the Nankai Trough, another subduction zone much closer to the Japanese coast than the source of 3/11, will produce a similar megaquake and tsunami within the next 30 years.
And when the Pacific rears and pitches itself again at Japan, the island nation’s tsunami warning system will sound the alarm having benefitted from vast post-3/11 technological improvements.
The island nation’s new warning system will broadcast qualitative alerts like takai and kyodai (“high” and “huge”) during future Pacific megathrust earthquakes, to better urge people to evacuate before the waves come…