HK sees a 10-cm rise in tide levels because of the tsunami
發佈日期: 2025-07-30 20:07
TVB News
The Hong Kong Observatory issued a tsunami notice this afternoon while noting that the tidal surges' impact to the city is minimal.
The tsunami triggered by the 8.8-magnitude earthquake off Russia reached Hong Kong at around 5 p.m.
The observatory's monitoring station in Quarry Bay saw the water level exceed the normal tide level by around 10 centimetres.
Professor Zhang Jian of the Department of Earth Sciences at the University of Hong Kong says being swept by just 30 centimetres of floodwater can make adults lose balance, and past 50 centimetres, it's a force to be reckoned with.
He added that the quake's energy was released southeastwards towards the Pacific Ocean, including Hawaii and New Zealand, but Hong Kong is on the other side.
HUI TAI-WAI, Senior Scientific Officer, HKO: "The tsunami will be slight. And the tsunami height will be 0.5 metres or less above the normal tide. On records, a similar case happened in 1952. At that time, a magnitude-9 earthquake happened in Kamchatka, triggering a 0.15-metre tsunami in Hong Kong.
