Lō'ihi Seamount

Lō'ihi Seamount, also known as Loihi or Lōihi, is an submarine volcano (seamount) in the Hawaiian–Emperor seamount chain. It lies in the Pacific Ocean south of the island of Hawaii. 
Lōihi is an active volcano.
Hawaiian name.
In 1995, the United States Board on Geographic Names (BGN) changed a longtime policy and is now using the Hawaiian okina and kahakō in the Geographic Names Information System (GNIS). After 1995, Loihi seamount was officially identified as Lōʻihi.
Seamount.
Lōihi seamount is 32 miles from the peak of Mauna Loa. This small volcano is in on the slopes of the larger and older one. Lōihi Seamount is over 3,000 meters above the sea floor. It is as tall as the volcano Mount St Helens was before it erupted. 
In 2012, the top of this volcano is one kilometer below the sea,
Island.
Lōihi is predicted to grow until it is an island, thousands of years from now.