An earthquake measuring 4.8 on the Richter scale rattled an area 159 km southeast of Polewali district in South Sulawesi on Sunday, an official said.

The epicenter of the tremblor which shook the area at 2 p.m. was traced at 4.84 degrees south latitude and 124.06 degrees east longitude and located in a depth of 77 km, a Lampung meteorological and geophysics agency (BMG) official said here Sunday.

Aftershocks will be felt along Sumatra's west coast for the next two weeks as a result of Wednesday's earthquake, a seismologist said Saturday.

The tectonic earthquake measuring 7,9 on the Richter Scale which shocked Bengkulu province on Wednesday (Sept 12) has caused more than rp500 billion in material loss, a statement said.

President Susilo Bambang Yudhoyono and his wife Mrs. Ani Yudhoyono left for Bengkulu at 7 am on Monday to observe affected areas in Bengkulu and West Sumatra that were hit by a quake measuring 7.9 on the Richter scale last Wednesday afternoon.

Accompanied by Minister for Public Works Djoko KIrmanto, Minister for Health Siti Fadilah Supari, Commander of the Indonesian Armed Forces Air Marshal Djoko Suyanto, cabinet Secretary Sudi Silalahi, the president left Halim Perdanakusuma Air Force base on board of a special aircraft, Boeing 737-500.

Social Affairs Minister Bachtiar Chamsyah assured here on Sunday that there was enough supply of rice for quake victims including for those in Bengkulu.

"Rice supply is secured. The problem is transporting and distributing them," he said after meeting with Bengkulu governor Agusrin Maryono Najamuddin.