Question

Distinguish between the following pair of terms associated with vulcanicity:

Crater and Caldera

Answer 1

Crater	Caldera
The crater is the mouth of a volcano at the top of the vent with a normal outlet.	Caldera is a very large mouth of a volcano which is quite spacious due to the big amount and thrust of the eruption.

Answer 2

Crater and Caldera: Crater forms the summit and Caldera the enlarged mouth or the sunken crater at the center of a volcano. When water accumulates in a crater it forms a crater lake and in a caldera a lake like Taba lake of Sumatra. A crater is formed as a result of the overflow of lava and calera as a result of subsidence.