News just in of another heavy seismic event, this time 106km north of the Mentawai Islands, 78km from Padang on Sumatra's south west shores.
This is fresh news, taken from Indonesian news site www.antara.co.id:
a strong earthquake measuring 7.6 on the Richter scale rocked Sumatra at 5.16 pm Western Indonesian Standard Time.
The earthquake occurred at 5.16 pm with its epicenter in West Sumatra at 0.84 degrees southern latitude, 99.65 degrees eastern longitude at a depth of 71 km below sea level.
It was about 78 km northwest of West Sumatra`s provincial city of Padang, 99 km southwest of Bukit Tinggi or 106 km northeast of Mentawai Islands.
The quake`s tremors were felt in the provinces of Riau, North Sumatra, Bengkulu and even Singapore.
Thousands of people in Medan, the capital of North Sumatra province, fled their buildings for safety when the magnitude 7.6 earthquake hit Sumatra on Wednesday evening.
In North Sumatra, people panicked and were seen gathering along the roads outside storeyed buildings such as on Jalan Diponegoro, KH Zainul Arifin, Gatot Subroto, Ahmad Yani and MT Haryono.
Ismet (35) , an employee of a bank on Jalan Diponegoro, said the temblor was felt very strongly in the 10-storey building of his office.
"The quake was strongly felt and employees panicked while running down the stairs of the building," he said.(*)
More to come as further details emerge.