Krakatoa
By Hayley, Megan and Meghan
Event Information
Krakatoa Volcano Eruption
When?
Monday, Aug 27, 1883, 01:00 PM
Where?
Indonesia
Krakatoa Volcano Type
Krakatoa is a stratovolcano. Stratovolcanoes are the most deadly type of volcanoes. These volcanoes are very tall, with cone like shape. Lava from these types of volcanoes are very thick. Stratovolcanoes are known for their steep sides and explosive eruptions.
Convergent Boundary
Krakatoa lies on the Eurasian and the Indo-Austrailian plates. When these two plates collide a volcano forms. At a convergent boundary two nearby plates come together to form earthquakes, volcanoes and mountains.
Krakatoa Today
When Krakatoa erupted it destroyed the island. It created a new volcano named "Anak Krakatoa" this means child of Krakatoa.
Lava Flow
The magma flowing from Krakatoa had a high viscosity, or high thickness. This magma was also ryolitic magma, meaning this magma has lots of silica. Silica is a hard, colorless compound found in sandstone and other rocks.
Krakatoa Hazards - 1883
- Rated a six on the volcano velocity index
- Destroyed the island in the eruption process
- Many people died, and because of this eruption the island is now uninhabited
- Had recent geological activity before the earthquake, but people paid no attention to them
Location
Krakatoa is located in Indonesia. It is in between the islands are Sumatra and Java.
Affect of Krakatoa
36,000 people died due to Krakatoa's eruption. People didn't just die because of the eruption, but also because of the tsunami that was over 150 ft high. There were some minor tremors beforehand, but people thought nothing of it. Some considered it the 9th deadliest volcano of all time.