Alaska - Steam rises from the top vent in the summitcrater of Mount Redoubt.
阿拉斯加，蒸汽从山顶上的火山口喷发。
2
Three crater lakes are located on the eastern summit of Keli Mutu.
三个火山口形成的深湖位于克丽穆图(Keli Mutu)东面的山顶上。
3
Magma can erupt to the surface and form lava flows through the volcano's summit (frequently forming a crater), but it can also erupt from lava domes and flank vents along the volcano's sides.