| 11. | On 25 June 1997, a pyroclastic flow travelled down Mosquito Ghaut.
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| 12. | Basaltic tuff or pyroclastic rocks are rare but not unknown.
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| 13. | The depositional temperature of these pyroclastic surges ranged up to.
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| 14. | The deposits of pumice-rich pyroclastic flows can be called ignimbrites.
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| 15. | Since then heavy rains have frequently remobilised pyroclastic material, generating lahars.
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| 16. | The initial phases of eruption are characterized by pyroclastic flows.
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| 17. | On the eastern flank, lava flows are buried beneath pyroclastic material.
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| 18. | Later volcanic activity buried this edifice beneath thin pyroclastic flows.
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| 19. | The first pyroclastic flow was observed around 10 : 12.
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| 20. | Hot pyroclastic flows on the southeastern flank covered a surface area of.
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