Two earthquakes, measuring magnitudes of 6.8 and 6.9 respectively, struck Wednesday off the coast of the Indonesian island of Sumatra.

According to data provided by the US Geological Survey, a magnitude 6.8 earthquake hit about 5:29 am and was centered 128.1 km (79.4 miles) west of Bengkulu, Indonesia, the second largest city on the west coast of the island of Sumatra.

The European Mediterranean Seismological Centre reported the second one had a magnitude of 6.9, with its epicentre located 130 km west of Bengkulu. The earthquake had a depth of 10 km (six miles).

Bengkulu has a population of about 300,000. The tremors were also felt in surrounding cities such as Mukomuko, Seluma and Kepahiang, and in neighbouring Singapore as well.

There have been no reported deaths or injuries due to the earthquakes as yet.

Indonesia’s Meteorology, Climatology and Geophysics Agency had also reported a magnitude 6.9 earthquake on the Island of Samar the previous day.

In June, a magnitude 5.9 earthquake had shaken the Gulf of Tomini on the eastern side of Indonesia, but no serious damage or injuries were reported and no tsunami warning was issued.