Just to share with you a picture of me at the foot of Merapi Volcano. Merapi volcano is one of the world's most active and dangerous volcano. It contains an active lava dome which regularly produces pyroclastic flows.
Eruptions occur at intervals of 1-5 years and are of low gas pressure. Since magma is poor in gas, eruptions are usually less than VEI 3 in size.
Merapi is one of the most active volcanoes in Indonesia and has produced more pyroclastic flows than any other volcano in the world.
It has been active for 10,000 years. Most eruptions of Merapi involve a collapse of the lava dome (called Awan panas) creating pyroclastic flows which travel 6 to 7 km from the summit.
Some awan panas have traveled as far as 13 km from the summit, such as the deposit generated during the 1969 eruption.
Velocity of pyroclastic flows can reach up to 110 km/hour. A slow up flow of andesitic magma leads to an extrusion of viscous magma, which accumulate and construct a dome in the crater.
Merapi had rumbled for weeks without a serious eruption, but in early May, its activity escalated. According to news reports, a plume of rock, ash, and hot gas flowed several kilometers down the volcano’s western slope. At its summit, the volcano built a lava dome, a kind of “cap” on pressurized volcanic material underneath.
We have to wear a mask to protect from the gaseous air very polluted air. In fact, the smell of burning grounds can be felt from distance away. In fact, the Merapi was still flowing out volcanic lava a few days before our visit.
Hope to be there again in the near future.

















