"On April 14, 2016, a powerful earthquake with a magnitude of 6.5 hit the Kumamoto region, followed by a 7.3-magnitude quake two days later. Both temblors registered the highest seismic intensity reading of 7 on the 10-point Japanese scale in some Kumamoto locations."
-- Kirk
http://www.the-japan-news.com/news/article/0003638521
NPA: Most Kumamoto earthquake victims trapped on 1st floors
TOKYO (Jiji Press) — Nearly 80 percent of the victims taken out by police from under collapsed wooden houses after the April 2016 earthquakes in and near Kumamoto Prefecture had been trapped in tiny spaces on the first floors, an analysis by the National Police Agency showed Thursday.