Fissura en l'escorça terrestre, generalment en el cim d'una muntanya, per on surten o han sortit materials fosos i roents, gasos i cendres procedents de l'interior de la Terra.
Fissure in the Earth's crust, usually at the top of a mountain, through which molten and redded materials, gases and ashes from inside the Earth come out or come out.
Persona o lloc en què es produeixen passions intenses, agitades o ardents:és un volcà d'activitat.
Person or place where intense, agitated or fiery passions occur:it is a volcano of activity.