 After reaching peak winds , Etau began turning to the north @-@ northeast due to the approaching trough , passing near Amami Ōshima . By that time , the typhoon had become large , with gale force winds extending 870 km ( 540 mi ) in diameter . Increasing wind shear and cooler air caused Etau to weaken . The typhoon still maintained 10 minute winds of 140 km / h ( 85 mph ) when it made landfall near Muroto on the Japanese island of Shikoku , shortly before 1300 UTC on August 8 . Continuing northeastward , the typhoon weakened into a severe tropical storm as it passed near Awaji Island , before making landfall on Honshu near Nishinomiya at 2100 UTC on August 8 . While accelerating to the northeast , Etau lost tropical characteristics over land . After briefly reaching open waters to the northeast of Honshu , the storm made its final landfall near <unk> , Hokkaido at 1630 UTC on August 9 , shortly before becoming extratropical . This was based on analysis from the JMA , whereas the JTWC assessed the storm remaining offshore Hokkaido . The remnants of Etau entered the Sea of Okhotsk and persisted for several more days , dissipating on August 12 to the west of the Kamchatka Peninsula . 
