Mauna Loa

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Mauna Loa is atleast 18,000 cubic miles (75,000 km3) in volume. And over 4 kilometers above sea level. Measured from its base on the ocean floor it reaches above 8 kilometres making it the tallest mountain on earth, but not the highest. Which is Mount Everest.

Measured from sea level Mauna Loa is 4,169 meters high. It is also one of the largest volcanoes measuring 60 miles long and 30 miles wide.In English, Mauna Loa means, "Long mountain."


Mauna Loa emerged from sea level about 140,000 years ago.It was created as the Pacific tectonic plate moved over the Hawaiian hotspot, this is where the volcano gets its the magma. This is also how most of the other volcanoes and Hawaiian islands were formed. Mauna Loa is a very active shield volcano, with shallow slopes of 75,000 km3.


Mauna Loa is located in Hawaii.This volcano, makes up 50.5 of one of the largest Hawaiian island. It is surrounded by small towns, settlements and other volcanoes
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  • In 1942 it was feared that the eruption of Mauna Loa in that year would act like a beacon and attract a Japanese bombing run on Hawaii during World War 2
  • The summit of Mauna Kea, another Hawaiian volcana, is slighty higher than the peak of Mauna Loa. By about 30 meters.
  • Eruptions of Mauna Loa tend to be non explosive and feature lava fountains
  • It is estimated that Mauna Loa has been active for over 700,000 years
  • Mauna Loa's summit is often snow-covered


The 1859 eruption of Mauna Loa began in the evening of January 23. Following a brief summit eruption, an outbreak occurred high on Mauna Loa's northwest flank at the 3380 m (11,090 ft) elevation. The eruption ultimately destroyed a coastal village and fishponds at Wainanali`i and Kiholo, on the west coast of the island. The erruption is known very well for being the most voluminous eruption in the post-contact period, and it produced a 52-km- (32-mile-) long lava flow, Longest in the state.

On the evening of January 30, the villagers of Wainanali`i were wakened by sounds of advancing lava and scrambled to remove personal effects from the path of the flows. Some villagers were taken by surprise and lost all their possessions. A flow reached the sea on the morning of January 31, eight days after the eruption started. The average rate of advance was 6 km per hour (4 mph).


For a while the Mauna Loa Volcano was undergoing deflating but recently that changed. From 2002 to 2005 the summit of the volcano started to reverse the deflating period which had taken ten years. In 2004 earthquake activity also increased but by 2005 it went down again. Scientists believe that Mauna Loa will more than likely erupt again within the next few years so it may be that the citizens of Hawaii will need to be on the alert regarding this awakening giant.

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