Mount Lewotobi Laki Laki: The Mount Lewotobi Laki Laki volcano in south-central Indonesia erupted three times recently, sending an ash column 8,000 metres (26,200 feet) high, prompting authorities to expand the danger zone.
o Shape: Tall, steep, cone-shaped volcanoes, unlike flat shield volcanoes.
o Formation: Found above subduction zones and are part of volcanically active regions like the Ring of Fire.
o Composition: Comprise about 60% of Earth's volcanoes, erupt andesite and dacite lavas, which are cooler and more viscous than basalt.