Science
Volcano Types Deep Quiz
Shield, strato, calderas, and cinder cones — how well do you know volcano types?
Shield, strato, calderas, and cinder cones — how well do you know volcano types?
In 1943, a Mexican farmer named Dionisio Pulido watched a cinder cone volcano — Paricutin — erupt from his cornfield. Within a year it was over 300 meters tall. From gentle shield volcanoes like Mauna Loa to explosive supervolcanoes like Yellowstone, the way a volcano is built determines how it behaves — and how dangerous it is.
Each round presents 10 randomized multiple-choice questions drawn from a pool of 50, so every playthrough is different. You get instant feedback with explanations after each answer, plus a shareable score at the end.
You'll explore every major volcano type — shield, stratovolcano, cinder cone, caldera, and lava dome. Learn about the VEI scale, pyroclastic flows, lahars, famous eruptions from Vesuvius to Pinatubo, the Ring of Fire, hotspot volcanism, lava types like aa and pahoehoe, and the volcanic gases that shape our atmosphere.
A stratovolcano (also called a composite volcano) is built from alternating layers of lava flows, volcanic ash, and pyroclastic material, creating a tall, steep-sided cone shape. Famous examples include Mount Fuji, Vesuvius, and Mount St. Helens. Stratovolcanoes are the most dangerous type because they erupt explosively due to their viscous, gas-rich magma, and they are commonly found along subduction zones in the Ring of Fire.
The Ring of Fire is a 40,000-kilometer horseshoe-shaped zone around the Pacific Ocean basin where about 75% of the world's active and dormant volcanoes are located, along with roughly 90% of the world's earthquakes. It runs from New Zealand up through Southeast Asia, Japan, Alaska, and down the west coast of the Americas. It is caused by the subduction of oceanic plates beneath continental plates.
A pyroclastic flow is a fast-moving current of hot gas, ash, and volcanic rock fragments that races down the side of a volcano during an explosive eruption. They can reach temperatures of 700°C and speeds exceeding 700 km/h, making them virtually impossible to outrun and the deadliest direct volcanic hazard. The destruction of Pompeii in AD 79 was largely caused by pyroclastic flows from Vesuvius.
Last updated: April 2026