About 200,000 homes were without power as Typhoon Trami swept through Japan’s most southerly chain of islands on Saturday.
Trami felled trees and turned vehicles on their side as the powerful category two storm swept through Okinawa city.
More than 380 flights were grounded and more than 600 people were evacuated to emergency shelters.
TYPHOON TRAMI TRACKER UPDATE: WILL CATEGORY 2 HURRICANE HIT TOKYO? WHERE IS STORM NOW?
State broadcaster NHK said 22 people had been hurt by the storm, with flying glass and debris being blamed for the majority of injuries.
Japan Meteorological Agency said Trami was located about 37 miles west of Okinoerabu Island in Kagoshima Prefecture at 1pm BST (10pm local time).
Moving at a slow speed of 15mph, the typhoon is forecast to hit Kyushu and Honshu on Sunday with “life-threatening” winds.
Warnings are in place for strong winds, high waves, heavy rain and storm surges across huge swathes of the country.
About 500mm of rain could fall over Kyushu and Shikoku, the smallest of Japan’s largest island chain.
But 400mm of rain is forecast elsewhere.
On Friday, Sakiko Nishioka from Japan Meteorological Agency warned residents Trami was “forecast to go across Japan at a high speed, we are urging people to be vigilant”.
How is Honshu preparing for the storm?
Kansai International Airport on Japan’s main island of Honshu will shut two of its runways at 3.15am BST Sunday (11am local time) ahead of Trami’s arrival.
West Japan Railway is also closing bullet trains between Hiroshima and Osaka on Sunday morning.
Western Japan is already recovering from a series of extreme weather events this year.
Typhoon Jebi, which tore through the country in September, was the strongest typhoon to hit Japan’s mainland in more than 25 years.
Weather forecasters say Trami is following the similar northeast path Jebi took through Japan.
Jebi was so powerful it managed to hurtle a 89 metre tanker from its anchorage into a bridge connecting Kansai Airport and the mainland.
More than seventeen people were killed when it made landfall.
An earthquake killed at least 44 people two people later when it brought landslides and power outages.