Underwater Rock: Loihi Seamount

Loihi Seamount is an active volcano built on the seafloor south of Kilauea, another volcano about 30 km from shore. The seamount rises to 969 m below sea level and generates frequent earthquake swarms, the most intense of which occurred in 1996. An eruption at Lo`ihi has not been observed yet, but scientists from the University of Hawaii have recently made many submersible dives to the volcano and deployed instruments on its summit to study Loihi in much greater detail. This volcano is rather special as it is underwater, unlike many other volcanoes such as Mauna Loa or Hualalai.

Hawaii's Active Dinosaur Volcano: Mauna Loa

Mauna Loa is among Earth's most active volcanoes, having erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984. Mauna Loa is certain to erupt again, and scientists carefully monitor the volcano for signs of unrest. This gigantic volcano is so large that it takes up 85% of all the Hawaii islands combined, and by itself takes up half the island of Hawaii! That is certainly a huge dinosaur number! It towers higher than any other mountain and volcano, standing at an astounding height of 17km above its base! The term Mauna Loa also means "Long Mountain" in English.