An eruption at Mount Semeru was recorded in central Indonesia, in East Java province. This was stated in a release by the country’s Center for Volcanology and Geological Hazard Mitigation.

According to the center, the resultant ash plume rose to 1,000 meters above the volcano’s crater, or 4,676 meters above sea level. The ash is spreading southward with high intensity.

The agency advised residents of the region to exercise caution and not approach the crater within a radius of 5 kilometers due to the ejection of incandescent rocks.

Semeru is the fourth-highest—3,676 meters above sea level—volcano in Indonesia and the highest peak on the island of Java.

The world’s largest Indonesian archipelago, consisting of about 18,000 islands, is located in the so-called Pacific Ring of Fire, which makes the region prone to intense seismic activity. Indonesia has more than 500 volcanoes, about 130 of which are active.