Big Island, Hawaii
20.12 N, 155.70 W
summit elevation 1700 m
Kohala is the oldest volcano on the Big island of Hawaii.
The summit is broad and covered with trees. Kohala is the oldest of Hawaii's five volcanoes. Kohala is in a transition between postshield and erosional stage.
Kohala volcano had grown to its maximum height before its southern flank was buried beneath lava erupted from Mauna Kea.
Mega-tsunami deposits have been found on Kohala volcano, from flank collapse of Mauna Loa about 110,000 years ago. The mega-tsunami reached a height of 61 m above the present sea level, and a runup distance of up to 6 km inland.
120,000 years ago.