The tsunami warning has since been revoked, asking local authorities to direct affected residents to move away from shores immediately.

Indonesia's geophysics agency (BMKG) reported that a 7.3-magnitude earthquake struck west of Sumatra Island on Tuesday, resulting in a tsunami warning that lasted for about two hours. The tsunami warning has since been revoked, asking local authorities to direct affected residents to move away from shores immediately.

The earthquake's magnitude was previously estimated by the European-Mediterranean Seismological Centre (EMSC) at 6.9.

At a depth of 84 kilometers (52.2 miles), the earthquake struck at around 3 a.m. time zone (2000 GMT). Later, several aftershocks were found, one of which had a magnitude of five, according to BMKG data.

According to spokesperson Abdul Muhari of Indonesia's disaster mitigation agency, information was being gathered from the islands off the western coast of Sumatra that were closest to the epicentre.

According to Abdul, who was in Padang when the earthquake struck, some people moved away from the beaches as a result of how strongly it was felt there.

"On the Siberut island, people had already been evacuated. They have been told to stay at the evacuation area until tsunami warning is lifted," Noviandri, a local official, told TvOne.

People are evacuating from Padang and Siberut island due to the Pacific Ring of Fire, which is a seismically active zone.

Due to its location at the meeting point of several plates of the earth's crust, known as the Pacific Ring of Fire, Indonesia experiences frequent earthquakes.