Even before Shanshan hit, precipitation pummelled large parts with three members of the same family killed in a landslide late Tuesday in Aichi prefecture around 1,000km from Kyushu.
Authorities issued their highest alert in places, with more than five million people advised to evacuate, although it was unclear how many did.
Kunisaki city in the Oita region of Kyushu warned inhabitants to “evacuate to a safe place or higher place such as the second floor of your houses” because of the risk of flooding.
One person was missing on Thursday – reportedly a man on a small boat – and two people were seriously injured, chief government spokesman Yoshimasa Hayashi said.
At least 80 people were injured across Kyushu, the JMA sad.
Rains turned rivers into raging torrents while winds smashed windows and blew tiles off roofs. TV images showed flooded roads and power lines being repaired.
The coastal city of Miyazaki, littered with debris from nearly 200 damaged buildings, reported 25 injuries – including some from a tornado.
Some parts of Miyazaki prefecture saw record rains for August, with the town of Misato recording a staggering 791.5mm in 48 hours, the JMA said.
