Updated

Scientists say lava flow and ash and gas emissions have intensified at a second Ecuadorean volcano, Reventador, as the full-bore eruption of the Tungurahua cone continues.

Ecuador's Geophysics Institute says the lava flow on Reventador's southern flank has increased since Saturday but poses no immediate threat to villagers in the region 60 miles (100) kilometers) east of the capital, Quito.

The 11,400-foot (3,475-meter) volcano is nearly three times that distance from Tungurahua to the southwest. It has been roaring since Sunday, when 200 people were evacuated from its flanks and one pyroclastic blast was heard as far away as the coastal city of Guayaquil.

Tungurahua is 16,480 feet (5,023 meters) high and has been active since 1999.

Reventador had its last big eruption in November 2002.