Above the adjoining plain on the W.) is Kilauea, from whose lava-flows the island has been extended to form its S.E.
Mauna Loa and Kilauea are still active.
Cinder cones are the predominant type of craters on both Mauna Kea and the Kohala Mountains, and they are also numerous on the upper slopes of Mauna Hualalai; but the more typically Hawaiian pit or engulfment craters also abound on Mauna Hualalai and Mokuaweoweo, crowning the summit of Mauna Loa, as well as Kilauea, to the S.E.
Kilauea is the largest active crater in the world (8 m.
According to an account of the natives, a violent eruption of Kilauea occurred in 1789, or about that time, and deposits of volcanic sand, large stones, sponge-like scoria (pumice) and ashes for miles around are evidence of such an eruption.
Of Kilauea are small channels with steam cracks, along which appears the only vegetation of the region.