A moderate earthquake struck off the western coast of Indonesia's Sumatra Island on Monday, the government said. There were no immediate report of injuries or damage.

The magnitude-5.9 quake was centered 330 miles southwest of the town of Bandar Lampung, said Agung Mulyo Utomo, a staffer the country's meteorology and geophysics agency.

Local radio station el-Shinta said the quake was lightly felt in Bandar Lampung.

Utomo said there were no reports of injuries, damage or a tsunami.

The massive 2004 Indian Ocean tsunami killed 131,000 people in Sumatra's Aceh province.

Indonesia is prone to earthquakes because of its location on the so-called Pacific "Ring of Fire," an arc of volcanoes and fault lines encircling the Pacific Basin.

On May 27, a magnitude-6.3 earthquake devastated a large swath of Java Island, killing more than 5,800 people.

Bandar Lampung is located on the southern tip of Sumatra island and is 155 miles northwest of Jakarta.