Indonesia witnessed a series of eruptions from Mount Ruang, a stratovolcano located in North Sulawesi Province.
- The eruptions occurred on April 16, and continued four times on 17. The falling debris from the volcano was hazardous as it could cause a tsunami.
Stratovolcanoes
- Stratovolcanoes have relatively steep sides and are more cone-shaped than shield volcanoes. They are formed from viscous, sticky lava that does not flow easily.
- The lava therefore builds up around the vent forming a volcano with steep sides.
- Stratovolcanoes are more likely to produce explosive eruptions due to gas building up in the viscous magma.
- Andesite (named after the Andes Mountains), is perhaps the most common rock type of stratovolcanoes, but stratovolcanoes also erupt a wide range of different rocks in different tectonic settings.
