Discover interesting facts about volcanoes, ... The biggest shield volcano is Tamu Massif, and it sits on a seamount east of Japan, its summit 6,500 feet (1,980 m) below the ocean surface.

Discover interesting facts about volcanoes, ... The biggest shield volcano is Tamu Massif, and it sits on a seamount east of Japan, its summit 6,500 feet (1,980 m) below the ocean surface.

Read CNN’s Fast Facts about Volcanoes and learn more about mountains that open downward to a reservoir of molten rock. ... - Shield volcanoes: Form when lava cools to form a gently sloping dome.

Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth’s surface, both above and below sea level, is of volcanic origin.

CNN Editorial Research Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth’s surface, both above and below sea level, is ...

CNN Editorial Research (CNN) — Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. Facts:More than 80% of the ...

CNN Editorial Research Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth’s surface, both above and below sea level, is ...

CNN Editorial Research Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth’s surface, both above and below sea level, is ...

Read CNN’s Fast Facts about Volcanoes and learn more about mountains that open downward to a reservoir of molten rock. ... - Shield volcanoes: Form when lava cools to form a gently sloping dome.