Mount Merapi, considered Indonesia’s most active volcano, erupted on August 16 again. According to a report, the event was the biggest lava flow in months.
The river of lava and the gas clouds flowed across miles threatening the densely populated island of Java.
Here is what you need to know.
Mount Merapi Eruption Record
Indonesia’s most active volcano erupted again, with the biggest lava flow in months. As per the recent report, the rumbling sound could be heard miles away as Mount Merapi erupted, with ash reaching approximately 2,000 feet (600 meters) into the atmosphere.
And as if it wasn’t enough, ask spread nearby towns, so evacuation orders were needed.
The biggest lava flow
Merapi’s recent eruption marked the most threatening lava flow since authorities brought its danger level back in November 2020.

As you can notice in the photo above, a woman walks through volcanic ash in Dukun, Central Java, Indonesia.
According to Yogyakarta’s Volcanology and Geological Hazard Mitigation Center, Merapi’s lava dome underneath the mount’s southwest rim and the one in the crater have been active since the end of July 2021.
For instance, the southwest rim dome amount was measured, and the results are quite shocking:
- 66.9 million cubic feet (1.8 million cubic meters);
- 9.8 feet (3 meters) tall.
All of that sent pyroclastic flows that moved fast down the southwest flank about twice. And that’s not all.
Even smaller pyroclastic flows of lava and searing gas went up to a mile (1.5 kilometres) southwest at about twice during daytime.
Moreover, the 9,737-foot (2,968-meter) peak is close to Yogyakarta, a city of several hundred thousand people and the centre of Javanese culture.
Restrictions
People are now advised to stay 3.1 miles (5 kilometres) from Mount Merapi’s crater mouth. Also, they need to be extra aware of the peril of lava—the volcano’s ash-covered several villages and other nearby towns.