1. Japan's Meteorological Agency has issued a warning for possible powerful earthquakes similar to those experienced in Kumamoto Prefecture on Tuesday.
2. The alert is particularly relevant for areas that have already experienced strong tremors, as the risk of falling rocks and landslides has increased.
3. Residents are advised to prepare for quakes with intensities around upper 5 on Japan's scale (0-7), with a higher risk in the next two to three days. In such an event, people may struggle to walk without support, and unstable items might fall or collapse. Outside homes, there is a risk of block walls collapsing and window glass shattering. It is also advised to avoid dangerous areas like cliffs.