A person; one who is skilled, professes or practices volcanology.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "volcanologist" in a sentence
"Surono, a government volcanologist, said: The energy is building up?"
"We hope it will release slowly, government volcanologist Surono told reporters."
"But Surono, a government volcanologist who uses only one name, said Sunday's 10:35 a.m. eruption released the greatest amount of energy so far, shooting soot and debris 11,400 feet into the sky."