SHANGHAI, May 12 (Reuters) - China's tallest building, the Jinmao Tower, and other highrise buildings in Shanghai's financial district were ordered evacuated on Monday after tremors were felt from a strong earthquake in southwestern China's Sichuan Province, witnesses said.

On Monday, an earthquake measuring 7.5 rocked Sichuan province less than 100 km (60 miles) from the provincial capital of Chengdu, the U.S. Geological Survey said on its website.

It was not immediately clear if there were any casualties or damage from the tremor.

The tremor, centred 92 km northwest of Chengdu, was felt as far away as Beijing and Shanghai and in the Thai capital Bangkok, where office buildings swayed with the impact. (Reporting by Joseph Chaney; Editing by Edmund Klamann)

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