MOSCOW (Sputnik) – The tremors were registered at 20:48 GMT on Monday 98.7 kilometers (61.3 miles) northwest of the city of Sinabang.
The epicenter of the earthquake was located at a depth of 22.7 kilometers (over 14 miles).
There are no reports about damages and victims.
Indonesia is located in a seismically active zone known as the Ring of Fire and regularly suffers from powerful earthquakes. On December 26, 2004, about 9.2-magnitude earthquake with an epicenter between Simeulue and the Indonesian island of Sumatra caused tsunami that killed up to 280,000 people in a number of countries across the Indian Ocean.