BALI, INDONESIA - JULY 02: Mount Agung erupts as i
BALI, INDONESIA - JULY 02: Mount Agung erupts as its lava incubation reaches 2000 meter distance, in Bali, Indonesia on 02 July 2018. (Photo by Mahendra Moonstar/Anadolu Agency/Getty Images)
  • A volcanic eruption showered ash across several villages on the Indonesian island of Bali Saturday.
  • Mount Agung's eruption caused some flight cancellations but no reported casualties as it spread lava and rocks over about two miles nearby.
  • The mountain sits in the Pacific "Ring of Fire," alongside 75% of the Earth's volcanoes overtop major collision points of tectonic plates.
  • For more stories, go to the Business Insider SA home page.

A volcano erupted on the Indonesian island of Bali Saturday, sending ash into the sky over surrounding villages and lava pouring down its sides.

The island's Mount Agung put national agencies on notice, causing some flight cancellations but no reported casualties with the eruption, which reportedly spread lava and incandescent rocks over about two miles.

The national disaster agency said Mount Agung's eruption lasted four minutes and 30 seconds, according to multiple reports.

Authorities had 50,000 masks available as a precaution, though the alert level on the volcano remained unchanged and there had been no evacuations, Reuters reported.

Qantas Airways, JetStar, and Virgin Airlines flights resumed normal operations on Saturday.

The volcano has been on watch since 2017 after a spike in activity and visible ash and smoke spewing from the mountain alarmed authorities, who raised the state of alert to its highest level.

Mount Agung's last major eruption in 1963 caused the deaths of more than 1,000 people.

Volcanic activity is common to Indonesia, as the country is situated on the Pacific Ocean's "Ring of Fire" where tectonic plates collide and move often, causing frequent seismic and volcanic activity. Seventy-five percent of volcanoes, or more than 750, are located along the Ring of Fire and 90% of Earth's earthquakes occur along the plates.

Receive a single WhatsApp every morning with all our latest news: click here.

Also from Business Insider South Africa: