They're prone to harangues

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

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