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Warning declared as huge Mauna Loa volcano activated in Hawaii’s Big Island

  • Published
    29th Oct, 2022
Context

The Scientist and researchers have alarmed the residents of Hawaii Island as the world’s largest active volcano ‘Mauna Loa’ indicates to get erupted.

About
    • According to recent observations, it has been noted that the number of Hawaii Island summit earthquakes jumped from 10 to 20 per day to 40 to 50 per day.
    • Scientists believe more earthquakes are occurring because more magma is flowing into Mauna Loa’s summit reservoir system from the hot spot under the earth’s surface that feeds molten rock to Hawaii’s volcanoes.
    • This stance can give rise to the volcanic eruption of Mauna Loa.

    Geographic location:

The Mauna Loa volcano:

  • It is the World’s largest active Volcano on the Island of Hawaii in the U.S. state of Hawaii.i in the Pacific Ocean. 
  • The volcano makes up 51% of the Hawaii Island landmass.
  • It is an active shield volcano with relatively gentle slopes, with a volume estimated at 18,000 cubic miles (75,000 km3).
  • Lava eruptions from Mauna Loa are silica-poor and very fluid, and they tend to be non-explosive.
  • It last erupted in 1984 which led to destruction on the Island.

What is Shield Volcano? A shield volcano is a broad volcano with sloping sides that is formed mainly out of runny lava that flows out of its central summit vent. Examples of Shield Volcanoes: are Mauna Loa on the Island of Hawaii, Wolf volcano in the Galapagos Islands, and Nyamuragira in the Democratic Republic of Congo. Characteristics: Basaltic magma, which is high in temperature, very low on silica, and with low gas content. Basic lava, which is non-acidic and very runny. Gentle sides as the lava flow for long distances before it solidifies. No layers, as the volcano just consists of lava.

Volcano Mitigation strategies:

  • Because of the potential hazards, it poses to population centers, Mauna Loa is part of the Decade Volcanoes program, which encourages studies of the world's most dangerous volcanoes.
  • Mauna Loa has been monitored intensively by the Hawaiian Volcano Observatory since 1912.
  • Observations of the atmosphere are undertaken at the Mauna Loa Observatory, and of the Sun at the Mauna Loa Solar Observatory, both located near the mountain's summit. 
  • Hawaii Volcanoes National Park covers the summit and portions of the south-eastern and south-western flanks of the volcano.
  • It also incorporates K?lauea, a separate volcano in the ambit of Hawaii Volcano Summit.

Some Active volcanoes on earth:


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