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Maunaloa vulcano

Aggiornato: 1 ott. 2022 09:27 GMT -
Shield volcano 4170 m / 13,681 ft
Big Island, Hawai'i, 19.48°N / -155.61°W
Stato attuale: inquieto (2 di 5)
Last update: 25 set 2022 (seismic swarm)
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.

Mostra la mappa interattiva
Stile eruttivo tipico: Dominantly effusive.
Eruzioni del vulcano 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

Latest nearby earthquakes

Non terremoti recenti

Sfondo

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 Tour di vulcano

Oahu-Kauai-Maui-Hawai'i (USA)
Hawaii - Birthplace of Islands
14 days walking and study tour to Oahu, Kauai, Maui, Hawai'i
14 days / 13 nights - Moderata
Price 4990 €
No date pianificate al momento
Sun, 25 Sep 2022, 17:01

Mauna Loa volcano (Big Island, Hawai'i): seismic swarm

The seismic activity beneath Mauna Loa volcano during 16-23 Sep (image: Hawaii Tracker)
The Hawaiian Volcano Observatory (HVO) reported that a small seismic swarm is occurring beneath the summit of the volcano. ... Read all
Thu, 5 May 2022, 12:05

Mauna Loa volcano (Hawaii, United States): slightly elevated seismicity

Mauna Loa earthquakes over the past week. Photo Credit: USGS.
During the past week, HVO seismometers recorded approximately 62 small-magnitude (below M3.0) earthquakes below the summit and upper-elevation flanks of Mauna Loa. The majority of these earthquakes occurred at shallow depths less than 15 kilometers (9 miles) below sea level. ... Read all
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