Taiwan has been rocked by its biggest earthquake in a quarter-century, with the above-7 magnitude tremor killing at least nine people, injuring more than 800, and triggering tsunami warnings that passed without damage or causalities.

The earthquake today, shook buildings off their foundations and caused landslides in the eastern part of the island. Dozens of buildings in the eastern city of Hualien collapsed.

Fire safety officials were quoted by Taiwanese media as saying that said at least nine people were killed in Hualien County, including three hikers and one engineering worker struck by falling rocks while in a trail, and at least 821 others were injured.

Rescue teams were working to free at least 127 people believed to be trapped in rubble or needing rescue, according to the Taiwanese news channel SETN.

The fire safety agency said that it is currently attending to at least 1,067 earthquake-related incidents in the island.

In the capital, Taipei, vehicles pulled over on the side of the road and the city’s subway service was briefly suspended, while tiles were thrown from older buildings and furniture was knocked over with the force of the earthquake.

A series of aftershocks were felt in the capital about 15 minutes later and continued over the next hour. Taiwanese authorities said aftershocks could continue for the next three to four days due to the earthquake’s intensity, as reported by AlJazeera.