They're prone to harangues

• Etna and Pelée, e.g.
• Active volcanoes, e.g.
• Volcanoes, e.g.
• Volcanoes, e.g
• Violent volcanoes
• Kilauea/Etna, at times
• Some volcanoes
• Active volcanoes

Wiktionary Word definitions in Wiktionary
n. (plural of spewer English)