The volcano, one of the most active in the world, has been largely dormant for the last two years, but it sprung to life with bright orange lava spewing out high over the Mediterranean Island, eventually easing off by Tuesday morning.
Catania airport, situated within 50 km (31 miles) of the volcano, remained open, but authorities were tracking the movements of the ash cloud.
Etna, at 3,330 meters (10,926 feet), is the highest volcano in mainland Europe and can burst into action several times a year. The last major eruption was in 1992.
(Reporting by Antonio Denti. Editing by Patrick Johnston, Larry King)
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