Colima:
The volcano that is to the left is called Colima and is found in North
America the last time it has erupted in 1999. The volcano is south of Guadalajara,
in the state of Jalisco in Mexico. The picture you see above was taken
in March of 1991, before the lava came out of the volcano. Avalanches of
ash and gas came out of Colima. If you look at the volcano eastward you
will usually see steam coming from the summit and on the southwest side
you can see scars from earlier avalanches.
On the 20th of January,1913, was the last big eruption that this volcano has had and the eruption lasted only four days. After the big eruption there was one more little one and then remained dormant for 44 years. Another eruption occurred in 1961 which sent a small lava flow down the northern side of the volcano. A much larger lava flow occurred on the north and southeast side of the volcano in 1975. In the 80's Colima had many small sporadic lava flows and avalanches were also frequent.
Lascar:
The
volcano above is called Lascar located in Chile, South America. The volcano
consists of an elongate series of six overlapping craters. It is about
800m in diameter and 300m deep. Gray pumice deposits from the 1993 eruption
are visiblein the picture. lascar is the most active volcano in the central
Andes.