Volcano Quiz

Volcanoes are most often found where tectonic plates are diverging or converging. Divergent tectonic plates cause mid-ocean ridges, while convergent tectonic plates cause the Pacific Ring of Fire.

Volcanoes away from plate boundaries may form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America.

Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, 3,000 kilometers (1,900 mi) deep within Earth.

<p>The Hawaiian hotspot is an example of hotspot volcanism.</p> Signup and view all the answers

<p>Volcanoes are usually not created where two tectonic plates are sliding past each other horizontally without any significant convergent or divergent movement.</p> Signup and view all the answers

<p>A rupture in the crust of a planetary-mass object that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.</p> Signup and view all the answers

<p>Most often found where tectonic plates are diverging or converging. Divergent tectonic plates cause mid-ocean ridges, while convergent tectonic plates cause the Pacific Ring of Fire.</p> Signup and view all the answers

<p>Upwelling diapirs from the core–mantle boundary, 3,000 kilometers (1,900 mi) deep within Earth.</p> Signup and view all the answers

<p>The Hawaiian hotspot is an example of hotspot volcanism.</p> Signup and view all the answers

<p>Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America.</p> Signup and view all the answers