Direct answer
That pyroclastic flows typically travel faster than 80 km/h (50 mph) and that internal rock and gas temperatures are generally between 200°C and 700°C.
Answer contract
Apply the definition lens only to the exact inspected source scope; do not infer authority from adjacent topics.
Evidence and exact locators
Inspected source 1 — Opening descriptive paragraph: speed and temperature sentences.. Supports: The bounded scope recorded in the reviewed specification.
What the evidence does not establish
A specification is not a route, a release, or a public page.
Rights and reuse
Rights basis recorded in the reviewed specification; link and bounded original paraphrase only.
Dependencies and related concepts
applies-to: urn:maha:concept:risk:pyroclastic-density-current
governed-by: urn:maha:concept:governance
evidence-for: urn:maha:concept:risk
Questions this page can answer
What does U.S. Geological Survey, Volcano Hazards Program — "Pyroclastic flows move fast and destroy everything in their path" state about pyroclastic-density-current?
That pyroclastic flows typically travel faster than 80 km/h (50 mph) and that internal rock and gas temperatures are generally between 200°C and 700°C.
Which exact locator in that source supports the claim on this page?
Inspected source 1, Opening descriptive paragraph: speed and temperature sentences.
What does this source explicitly not establish about pyroclastic-density-current?
A specification is not a route, a release, or a public page.
Which canonical definition does this route depend on, and where is it owned?
applies-to: urn:maha:concept:risk:pyroclastic-density-current governed-by: urn:maha:concept:governance evidence-for: urn:maha:concept:risk
What would have to be inspected before this page could claim more than it does?
A source, locator, rights, scope, boundary, dependency, implementation, or release change requires a new exact-revision review.