6 Types of Volcano Eruptions
From the explosive power of Plinian eruptions to the calm flow of Icelandic eruptions, we explore six eruption types from volcanoes.
Volcanoes
What is a Shield Volcano?
The name “shield volcano” originated from its Roman shield-like shape. They are broad, flat and can stretch hundreds of miles wide like Mauna Loa in Hawaii.
Lahar: Flowing Mud at Volcanoes
“Lahar” is an Indonesian word for mudflow at volcanoes. Lahar flows down volcanoes as a mix of mostly water, mud and rock debris (similar to wet concrete).
What is a Stratovolcano (Composite Cone)?
The stratovolcano is tall, steep & cone-shaped. Unlike shield volcanoes, stratovolcanoes build up height by layering lava, ash and tephra on top of another.
13 Parts of a Volcano: The Anatomy of Volcanoes
Today, we explore 13 parts of a volcano. From tephra, fumaroles, magma, lava domes, pyroclastic flow to volcanic bombs, this is the anatomy of volcanoes.
3 Types of Volcanoes: Stratovolcano, Shield and Cinder Cone
The 3 types of volcanoes are stratovolcanoes, shield volcanoes and cinder cones. Based on their geography, volcanoes take different appearances.
How Volcanoes Form Igneous Rocks
Volcanoes are the foundation for igneous rocks. When volcanoes erupt, magma and lava spews out. After cooling and solidifying, they become igneous rocks.
Pacific Ring of Fire: Volcanoes, Earthquakes and Plate Tectonics
The Pacific Ring of Fire has the most active chains of volcanoes in the world. This is because tectonic plates collide and sink at these zones of subduction.
What is a Cinder Cone Volcano (Scoria Cone)?
Cinder cones (also known as spatter cones) are the most common type of volcano in the world. But they are small in comparison to stratovolcanoes and others.
What’s the Difference Between Lava and Magma?
Magma is liquid rock with dissolved gas at the interior of Earth. When magma reaches the surface, it’s lava. The difference for lava vs magma is location.