In Hong Kong, the Royal Observatory advised ships to seek shelter in port and issued typhoon signal no. 9 at the height of the storm. Approximately 11,000 people were evacuated from low-lying areas. Gusts of 220 km/h (140 mph) reached the Crown colony, flattening over 200 homes; three people were killed and six were injured by flying debris. Signboards and trees were also brought down by the typhoon's winds. At Quarry Bay, Ida produced a storm surge of . An 11,360-ton freighter ran aground at Victoria Harbour, where two people drowned. The Royal Observatory documented rainfall rates as high as 230 mm (9 in) per hour from Ida. Four people were killed after a mudslide pushed into a refugee camp and razed three houses Kwun Tong, with the 20,000 m3 (700,000 ft3) surge of mud placing areas under 7.5 m (25 ft) of debris. Over 100 refugees were injured and 5,000 were left homeless by the mudslide. Another seven people were killed in Korea following rains associated with Ida. At least 4,000 others were rendered homeless by the resultant flooding.