They explored the still active crater for 33 days.

They have survived regular showers of volcanic debris and frequently endured rock falls caused by the active crater.

Tourists and hikers were to advised not to come within a radius of 2 km from the active crater.

There are three active craters at the peak.

As such, the line and the observatory have views of an active volcanic crater with fumes.

The active crater is currently filled with a hot, acidic crater lake.

These explosions would go on to form three new active craters.

The active crater of Tompaluan is situated in the saddle between the two cones.

They found an active crater and strong sulfurous emissions near the summit.

Their last eruption was in 1950, and now only fumarolic activity, primarily inside the recently active craters, takes place.