Here's an article from Monday's anniversary that I wasn't aware of at the time:
"The Kumamoto prefectural government carried out a disaster drill on Monday. All its about 3,800 employees were required to go to work on the presumption that an earthquake measuring a lower six on the Japanese seismic intensity scale occurred at 6 a.m."
-- Kirk
Kumamoto quake victims remembered in Minamiaso
KUMAMOTO — Bereaved friends and others commemorated the dead on Monday, the second anniversary of the main tremor of the Kumamoto Earthquake.