Pyroclastic flows are made up of a mix of hot lava, pumice, ash and volcanic gases. They can reach temperatures of up to 1,000 degrees Celsius and can—in extreme cases—move down the slopes of ...

Indonesia's most active volcano, Mount Merapi, erupted early Friday, spewing sand and pyroclastic material and sending an ash column as high as 5,500 metres into the sky. The sudden eruption was ...

A translation of the post adds that “from preliminary observations, the hot pyroclastic material does not appear to have crossed the edge of the Valle del Leone (Valley of the Lion, an ...

The post by the platform also translates to, “From preliminary observations, the hot pyroclastic material does not appear to have crossed the edge of the Valley of the Leo.