A powerful earthquake hit waters off western Indonesia early Wednesday, prompting officials to issue a tsunami warning. There were no immediate reports of injuries or damage.
The U.S. Geological Survey said the quake had a preliminary magnitude of 7.3 and struck 260 miles (420 kilometers) off the coast of Aceh province. It was centered 18 miles (30 kilometers) beneath the ocean floor.
Residents in the provincial capital, Banda Aceh, and other cities along the coast poured into the streets after being rattled from their sleep.
Arief Akhir, an official with Indonesia's geological agency, said a tsunami warning had been issued. But more than an hour after the quake, there were no signs of seismically triggered waves.