Areas hit by the 2011 Great East Japan Earthquake and tsunami have been rebuilt, 13 years after the disaster. (Kazuhiro Ichikawa)

Scenes of devastation from the Tohoku region stunned the world after the tsunami generated by the Great East Japan Earthquake slammed into the northeastern coast on March 11, 2011.

But now, 13 years after Japan’s worst postwar natural disaster, signs of destruction continue to disappear.

“Before and after” aerial photos taken by The Asahi Shimbun show how far reconstruction and preparations for future disasters have progressed in areas that once appeared irrecoverable.

In Yamada, Iwate Prefecture, around 40 percent of the houses were destroyed by the tsunami and fires, and more than 800 people in the town were killed or listed as missing.

After the disaster, a 9.7-meter-high tide embarkment was completed in Yamada and damaged areas were raised.

The Arahama district of Sendai’s Wakabayashi Ward was hit by a tsunami about 10 meters high. The former Arahama Elementary School, where 87 students, teachers and 233 residents took refuge on the roof, has been preserved as a relic of the disaster.

An eastern reconstruction road, which also serves as a levee, has been built next to the school site.