Mauna Kea
Mauna Kea ( or , ) is a dormant volcano on the island of Hawaii. Its peak is above sea level, making it the highest point in the state of Hawaii. Most of the mountain is under water, and when measured from its oceanic base, Mauna Kea is the tallest mountain in the world measuring over . Mauna Kea is about a million years old, and has thus passed the most active shield stage of life hundreds of thousands of years ago. In its current post-shield state, its lava is more viscous, resulting in a steeper profile. Late volcanism has also given it a much rougher appearance than its neighboring volcanoes due to construction of cinder cones, decentralization of its rift zones, glaciation on its peak, and weathering by the prevailing trade winds. Mauna Kea last erupted 6,000 to 4,000 years ago and is now considered dormant. The peak is only about higher than its more massive neighbor, Mauna Loa.
Mount Kerinci
At 3,805 meters above sea level, Kerinci is the highest volcano in Indonesia. Also, Kerinci making Sumatra fifth highest island and rank first in Asia both the highest volcano in an island and highest island highpoint made of volcano; but in second rank in world in both terms after Mauna Kea of Hawaii island. Kerinci is located in the border of the titular Kerinci Regency of Jambi province and South Solok Regency of West Sumatra province, in the west central part of the island near the west coast, and is about south of Padang. It is part of the Barisan Mountains, a chain of volcanoes that span from the extreme northwest of the island (in Aceh province) all the way to the extreme southeast (in Lampung province). It is the most prominent feature of the terrain of Kerinci Seblat National Park, with pine-forested slopes rising 2,400-3,300 metres above the surrounding basin, and a cone wide and long at the base, elongated in the north-south direction. At the summit there is a deep wide crater, often partially filled by a small crater lake on the northeast side of the crater floor.