Formation of Volcanoes

Volcanoes often form where tectonic plates move apart or collide, such as in Iceland and the Cascade Mountains. The Ring of Fire is a notable area with many volcanoes. However, volcanoes can also form over hotspots, like those in Hawaii, where magma rises from the mantle.

Where do volcanoes commonly occur in relation to tectonic plates?

• In the middle of tectonic plates

• Where tectonic plates are separating or converging

• Only at the edges of continents

• In areas with no tectonic activity

Which two tectonic plates are moving away from each other at the location of a volcano in Iceland?

• North American and Eurasian Plates

• Eurasian and African Plates

• Pacific and Juan de Fuca Plates

• North American and Pacific Plates

What is the Ring of Fire?

• A large concentration of volcanoes around the Pacific Ocean

• A region in the Atlantic Ocean with many volcanoes

• A circular chain of mountains

• A volcanic area in the Indian Ocean

Where are Hawaiian volcanoes located in relation to tectonic plates?

• At the edge of the North American Plate

• In the middle of the Pacific Plate

• At the boundary of the Pacific Plate

• On the Eurasian Plate

What geological feature allows magma to rise and form volcanoes in the middle of tectonic plates?

• Mid-ocean ridges

• Subduction zones

• Transform faults

• Hotspots