Hualālai is the third most active volcano on the island of Hawaii, behind Kilauea and Mauna Loa. Hualalai, the third of Hawaii's active shield volcanoes, is located northwest and west of its giant neighbors Mauna Loa and Mauna Kea.
Hualalaivolcano last erupted between 1800-1801, when it produced lava flows from 5 fissure vents that reached the sea and buried Hawaiian villages. The Hualalai began to erupt about 800,000 years ago and broke the surface of the sea about 300,000 years ago.
The volcano has 3 rift zones, the most prominent being the northwest rift, which is about 40 km long and continues in the sea to a depth of 3000 m. C. until 200 a. C., there have been about 200 Hualalai eruptions.
As mentioned above, Hualalai is the third most active volcano after Mauna Loa and Kilauea. In the past 1000 years, Hualalai volcano has been reported to have erupted at least three times. Volcanologists believe that Hualalai has a recurrence interval of around 200 to 300 years depending on its volcanic activity. According to records, Hualalai last erupted in 1801 after remaining dormant for more than two thousand years.
Scientists, therefore, consider Hualalai to be potentially active, as it is expected to erupt again in the next 100 years. Studies have revealed that the volcanic eruption of 1801 produced fluid flows of alkaline basaltic lava with a total production volume of more than 300,000,000 cubic meters. The huge lava flows released by the two vents eventually entered the Pacific Ocean from the western edge of the Big Island of Hawaii. Hualalai is the fourth highest mountain peak in Hawaii, rising to a height of 2,521 m and has a prominence of 936 m.
Although it has been 200 years since Hualalai's last eruption, it is almost certain that it will erupt again. This eight-671-foot volcano (commonly known as the 'Hualalai' volcano) on the island of Hawaii is located northwest of the island of Hawaii, Hawaii, U. Hualalai, Mount Hualalai, Hualalai Mountain, or Hualalai Volcano; it's just one name, Hualalai. For residents of the Kona area, keep in mind that Hualalai hasn't erupted since 1801; Mauna Loa is considered active but hasn't erupted since 1984.Hundreds of years ago, the “Ahu A Umi Heiau” shrine was built on a dry plateau east of Hualalai.
Hualalai is one of five active shield volcanoes in the Hawaiian Islands that form the big island of Hawaii. Lava flows represent by far the greatest danger in a possible future Hualalai eruption, because although explosive pyroclastic eruptions have occurred during the Holocene epoch (the last 10,000 years), they are relatively rare and cover only limited parts of the volcano. Alkaline eruptions in Hualalai have generally been much less explosive than those at neighboring Kohala and Mauna Kea volcanoes. Studies have revealed that the volcanic cone is made up of trachyte, which is only found in the Hualalai volcano and not in any other volcano that forms the island of Hawaii.
Hualalai's most significant secondary feature is Pu'u Wa'awa'a, a 372 m high volcanic cone located north of the summit with a diameter of more than 1.6 km. There are three fissure zones in Hualalai and more than a hundred cones of ash and spatter arranged along these crack zones. The Pohakuloa training area, located on a high plateau between the Hualalai, Mauna Loa and Mauna Kea volcanoes, provides a remote training ground for the United States Army and the U.S. UU.