The last major eruption was in 1984 and it lasted for three weeks. Kilauea, a smaller and younger volcano on the southeast side of Mauna Loa, has been erupting lava from 1983 to the present.Its output of lava has averaged about 400,000 cubic metres (14 million cubic feet) per day, in sharp contrast to the 12 million cubic metres (424 million cubic feet) per day during the first week of the 1984 eruption of Mauna Loa. Since the mid-19th century, the city of Hilo in east Hawaiʻi has been threatened by seven Mauna Loa … Eruptions build shield volcanoes like Mauna Loa layer upon layer. Over immense geological time, this building has led to an elevation for Mauna Loa of 13,680 feet or 4,170 meters above sea level. Even though Mauna Loa itself has not erupted since 1984, it is an active volcano and has indirectly caused volcanic air pollution since its last major eruption. The result is a range of weather conditions and vegetative zones … Mauna Loa is tall enough to have experienced glaciation during the last ice age, 25,000 to 15,000 years ago. Geologists have identified at least 4 debris fans comprised of fragmented rock deposits on top of pāhoehoe lava flows that spread from the summit. Thirty years ago, Mauna Loa, the massive volcano that makes up more than half of Hawaii’s Big Island, kicked off a 22-day eruption that kept geologists, emergency managers and Hawaiian residents on their toes. Credit: R.B.M, USGS. How many people died in the 1950 mauna loa eruption? 10 Surprising Facts About the 1984 Mauna Loa Eruption By Zahra Hirji, March 26, 2014 Mauna Loa’s 1984 eruption. Since the mid-19th century, the city of Hilo in east Hawaiʻi has been threatened by seven Mauna Loa … This increased activity at the volcano, on Hawaii's Big Island, has been detected as early as 2013 and could be a signal of an impending eruption. Mauna Loa last erupted 35 years ago, in 1984. Mauna Loa last erupted 35 years ago, in 1984. Most recently, in the early 2000s, Mauna Loa began inflating, and soon after, neighbor Kilauea, with whom it shares a complex volcanic relationship, began erupting and creating vog. Mauna Loa eruptions tend to produce voluminous, fast-moving lava flows that can impact communities on the east and west sides of the Island of Hawaiʻi. Mauna Loa is not known to have produced an explosive eruption since 1843, but there is geologic evidence for some explosive activity in the past 1,000 to 300 years. There were no deaths in the 1950 eruption of Mauna Loa. MAUNA LOA is the most active volcano on the planet and has erupted 33 times since its first historical eruption in 1843 and is one of five volcanoes that form the island of Hawaii. MAUNA LOA is the most active volcano on the planet and has erupted 33 times since its first historical eruption in 1843 and is one of five volcanoes that form the island of Hawaii. Mauna Loa eruptions tend to produce voluminous, fast-moving lava flows that can impact communities on the east and west sides of the Island of Hawaiʻi.