Image Source: GMS infrared, from Sawada (1994), altered.
Date: February 10th, 1990

Comments: This eruption in 1990 killed more than 30 people (largely through falling rocks), with ash observed on satellite imagery to be drifting as far as Australia.

References: Smithsonian Institution Global Volcanism Program reports, Sawada, Y, 1994, 'Tracking of Regional Volcanic Ash Clouds by Geostationary Meteorological Satellite', in 'Volcanic Ash and Aviation Safety: Proceedings of the First International Symposium on Volcanic Ash and Aviation Safety', edited by Thomas J. Casdevall, U.S. Geological Survey Bulletin 2047.