SANTIAGO, Feb 3 (Reuters) - Chilean authorities evacuated 20 residents near the Llaima volcano on Sunday as it spilled lava and ash a month after a fiery eruption.

"There are slight lava and ash emissions ... we evacuated 20 residents as a preventive measure," Miguel Munoz, a spokesman for Chile's national emergency services agency, told Reuters.

Llaima is one of Chile's most active volcanoes and is in the Araucania region in the nation's south, about 435 miles (700 km) south of the capital Santiago.

The volcano erupted on New Year's Day, sending up a huge plume of smoke and coating the surrounding wilderness park with ash, forcing the evacuation of dozens of tourists. (Reporting by Pav Jordan; Editing by Bill Trott)

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