Wikimedi'Òc

Dds40-097 large.jpeg - Jurema Oliveira

Maar USGS.jpg - Gump Stump

1975 Pavlof volcano eruption, Alaska (1182883978).jpg - File Upload Bot (Magnus Manske)

Tephra ring around Novarupta 2 08182013 (13543257664).jpg - Holly Cheng

Tephra ring around Novarupta (13542871345).jpg - Holly Cheng

Three men standing by volcanic ash from Mount Katmai, 1912 (AL+CA 7133).jpg - BMacZeroBot

Volcanic ash (April 2009 eruption of Mt. Redoubt, Aleutian Volcanic Arc, Alaska, USA).jpg - Ser Amantio di Nicolao

Hornblende andesite ash (18 August 1992 eruption of Mt. Spurr's Crater Peak Vent, Aleutian Volcanic Arc, southern Alaska, USA).jpg - Ser Amantio di Nicolao