TAIPEI, Taiwan—The sparsely populated southeastern part of Taiwan was rocked by a 6.8 magnitude earthquake on Sept. 18, the island’s weather bureau said, derailing train carriages, causing a convenience store to collapse, and trapping hundreds on mountain roads.
The epicenter was in Taitung county, and followed a 6.4 magnitude temblor a day earlier in the same area, which caused no casualties, the weather bureau said.
The U.S. Geological Survey initially measured the Sept. 18 quake at a magnitude of 7.2 and a depth of 10 kilometers (six miles) before downgrading it to 6.9.
Taiwan’s fire department said four people were rescued from a building housing a convenience store that collapsed in Yuli, while three people whose vehicle fell off a damaged bridge were rescued and transported to a hospital….