Hong Kong travellers in Japan were reported safe by at least one major tour operator while the Immigration Department said it was closely monitoring the situation after a powerful earthquake struck off the country’s northeast coast on Monday, triggering tsunami warnings. Steve Huen Kwok-chuen, executive director of EGL Tours, said the operator currently had about 40 tour groups in Japan, including three in the northeast and four in Hokkaido, areas covered by the alert. “All our customers are...