Pyroclastic flows are a common and devastating result of some volcanic eruptions. They are an extremely fast moving body of gas, ash and rock which travels at over 100km/h.
... 8 - Victor de Kowa[?], actor (+ 1973)
March 6 - Joseph Schmidt[?], tenor (+ 1942)
March 7 - Reinhard Heydrich, Nazi official
March 20 - B. F. Skinner, behavioral ...