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Maunaloa Vulkan

Aktualisiert: 28. Jan. 2023 16:16 GMT -
Shield volcano 4170 m / 13,681 ft
Big Island, Hawai'i, 19.48°N / -155.61°W
Aktueller Status: unruhig (2 von 5)
Last update: 18 Dez 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)
Mauna Loa volcano with the gentle slopes of a typical shield volcano
Mauna Loa volcano with the gentle slopes of a typical shield volcano

Maunaloa (officially renamed as one word from Mauna Loa) is the world's largest and one of its most active volcanoes - a giant shield volcano on the Big Island of Hawai'i.

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Typische Aktivität: Dominant überschwängliches.
Ausbrüche des Maunaloa: 1832, 1843, 1849, 1851, 1852, 1855-56, 1859, 1865-66, 1868, 1870(?), 1871, 1872, 1873, 1873-74, 1875, 1876, 1877, 1879, 1880, 1880-81, 1887, 1892, 1896, 1899, 1903, 1907, 1914-15, 1916, 1919, 1926, 1933, 1935-36, 1940, 1950, 1975, 1984, 2022 (Nov-ongoing)

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Mauna Loa, world's largest mountain and volcano, is a archetype of a basaltic shield volcano in its late mature stage of life, and only about 600,000-1,000,000 years old. Although not erupting as frequently as its younger neighbor Kilauea, it is also one of the most active volcanoes of the world. When it erupts, its eruptions are usually huge and produce large rivers of lava that have repeatedly threatened the town of Hilo.
Mauna Loa rises almost 9 km above the sea floor and the weight of the massive mountain has depressed the oceanic crust down by about 8 kilometers, so the whole pile of volcanic rocks produced from Mauna Loa is probably about 8+5+4=17 kilometers! It has eruptions both from its summit, occupied by a large caldera, and its NE and SW rift zones on the flanks. Almost 90% of Mauna Loa's surface is is covered by lavas less than 4000 years old, while about 50% of its surface is covered by lavas no older than about 1500 years old, while about 25% are covered by lava flows younger than about 750 years, i.,e. emplaced after the formation of the Mokuaweoweo summit caldera.

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Maunaloa Vulkanreisen

Hawaii - Birthplace of Islands
14 days walking and study tour to Oahu, Kauai, Maui, Hawai'i
14 Tage / 13 Nächte - Mittel
Preis 4990 €
31. Aug - 13. Sep 2023
Mi, 14. Dez 2022, 15:00

Mauna Loa volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 December-13 December 2022 (New Activity / Unrest)

HVO reported that activity at Mauna Loa's Fissure 3 declined during 7-9 December and then ceased on 10 December. The main lava flow had only advanced a small distance during 6-7 December, at a rate of about 6 m per hour, possibly due to a significant breakout that had occurred about 4.5 km upslope of the flow front. Lava erupting from Fissure 3 was greatly reduced by the morning of 8 December. ... Read all
Mi, 14. Dez 2022, 05:01

Maunaloa volcano update: eruption phase ended

Solidified lava pond within Fissure 3 (image: USGS)
The HVO reported that the eruption at Maunaloa ceased and is no longer erupting. ... Read all
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