Pyroclastic flows are the signature fireworks of the most explosive kinds of volcanic eruptions. These mixtures of ash, lava blebs and broiling gas are normally at temperatures between 200°C an ...

One of the leading killers during explosive volcanic eruptions is a family of superheated gas, ash, and debris known as pyroclastic density currents. These tumbling, turbulent paroxysms rush ...

Both eruptions swallowed homes and reminded everyone how ferocious nature can be. But there are huge differences between Guatemala’s Fuego volcano eruption, which has killed 62 people since ...

Pyroclastic flows are more or less avalanches made of hot volcanic debris. They can be formed from the collapse of an ash column when the force pushing the volcanic debris (tephra) can no longer ...

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 ...

These pyroclastic flows can travel tens to hundreds of kilometers over rough terrain and even uphill (SN: 7/7/18, p. 32). Despite being made of gritty volcanic rock, “they seem to have as much ...

Pulses of high pressure form within these slides, known as pyroclastic flows, as a result of turbulence, laboratory and field measurements show. Those pressures can be far stronger, and more ...

Volcanologist Professor Chris Jackson discovers evidence of the deadly pyroclastic flow. Volcanologist Professor Chris Jackson reveals the power of the deadly pyroclastic flow that had swept ...

In Reynolds’ video above, Sinabung’s pyroclastic flow surges down the mountainside on Friday, destroying everything in its path, including farms. The beginning of the video shows how ...

So much of that material ejected up into the sky and fell back into the caldera, and that's what we see down there, rhyolite, andesite, broken block, pyroclastic flows. The idea is we have three ...