Sumatra Indonesia QuakeA tsunami warning has been issued after a powerful 7.3 magnitude quake hit 423km (262 miles) south-west of Banda Aceh, Sumatra. An official with Indonesia’s geological agency confirmed this. US Geological Survey (USGS) said today’s quake was centered 18 miles beneath the ocean floor.

Indonesia’s geological agency’s technical chief Suharjono told that, “The quake was in the sea and a tsunami warning is in force, but so far we have no reports of casualties or damage.”

Residents in the provincial capital, Banda Aceh, and other cities along the coast fled their homes and waited in the streets. Patients were evacuated from at least one hospital as a precaution.

The quake struck shortly after midnight on Wednesday local time (18:37GMT Tuesday), the USGS said.

A giant quake off the country on Dec. 26, 2004, triggered a tsunami in the Indian Ocean that killed 230,000 people, half of them in Aceh.