What volcanos are on Oahu?

If you're hoping to see an 'active' volcano on O'ahu, I'm afraid you're out of luck. All of the 12 volcanoes on O'ahu are now dormant with the last ones erupting tens of thousands of years ago. read more

Oahu is made of two major volcanoes, Waianae to the west and Ko’olau to the east. Waianae began erupting about 3.8 million years ago and ended 2.2 million years ago; Ko’olau began about 2.6 million years ago and ended about 1.8 million years ago. read more

Hawaii’s Active Volcanoes There are currently three active volcanoes in Hawaii. On the Island of Hawaii, you’ll find Maunaloa and Kilauea in Hawaii Volcanoes National Park. Maunaloa last erupted in 1984, and Kilauea has been continuously erupting since 1983. Loihi is located underwater off the southern coast of Hawaii Island. read more

Hualalai is monitored by geologists of the U.S. Geological Survey’s Hawaiian Volcano Observatory. In the last 24 years there have been no swarms of microearthquakes nor any harmonic tremor. Since the early 1980’s the geologists have been surveying the volcano. read more

Volcanoes of O‘ahu. This category includes various named volcanic vents and other features found on the Island of O‘ahu. The Island was formed by only two volcanoes: Wai‘anae and Ko‘olau. read more