Many different measures had been
put in place in preparation for the
scenario event. Coastal villages
and towns in Iwate and Miyagi prefectures
planted dense pine “tsunami
forests” to dissipate tsunami
wave energy, sea walls were constructed
to protect harbors and lowlying
areas (Figure 3), speakers
were installed to provide voice
warnings to residents and visitors
(Figure 4), radio and television
broadcasters could scroll messages