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Maunaloa vulcano

Aggiornato: 4 dic. 2022 04:26 GMT -
Shield volcano 4170 m / 13,681 ft
Big Island, Hawai'i, 19.48°N / -155.61°W
Stato attuale: eruzione (4 di 5)
Last update: 3 dic 2022 (Fissure 4 is sluggish, Fissure 3 flows still travel on flat ground)
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, 2022 (Nov-ongoing)

Latest nearby earthquakes

Data / oraMag. / Prof.Distanza/Ubicazione
domenica, 4 dicembre 2022 GMT (3 sismi)
3 dic 2022 16:04 (GMT -10) (4 dic 2022 02:04 GMT)
2.1

33 km
37 km (23 mi)
4 Km S of Pāhala, Hawaii
3 dic 2022 14:28 (GMT -10) (4 dic 2022 00:28 GMT)
2.0

2.1 km
1.5 km (0.9 mi)
Hawaii Region, Hawaii
3 dic 2022 14:16 (GMT -10) (4 dic 2022 00:16 GMT)
2.7

0.9 km
3.9 km (2.4 mi)
27 Km E of Honaunau-Napoopoo, Hawaii
sabato, 3 dicembre 2022 GMT (1 sismo)
3 dic 2022 11:19 (GMT -10) (3 dic 2022 21:19 GMT)
2.3

35 km
37 km (23 mi)
4 Km SSW of Pāhala, Hawaii
martedì, 29 novembre 2022 GMT (2 sismi)
29 nov 2022 03:26 (GMT -10) (29 nov 2022 13:26 GMT)
4.0

32 km
38 km (24 mi)
9 Km E of Pāhala, Hawaii
29 nov 2022 03:26 (GMT -10) (29 nov 2022 13:26 GMT)
4.0

32 km
38 km (24 mi)
9 Km E of Pāhala, Hawaii
lunedì, 28 novembre 2022 GMT (2 sismi)
27 nov 2022 23:51 (GMT -10) (28 nov 2022 09:51 GMT)
4.0

3 km
2.9 km (1.8 mi)
Island of Hawaii, Hawaii
27 nov 2022 22:56 (GMT -10) (28 nov 2022 08:56 GMT)
4.3

5 km
2.7 km (1.7 mi)
29 Km E of Honaunau-Napoopoo, Hawaii

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 €
31 ago - 13 set 2023
Sat, 3 Dec 2022, 06:08

Maunaloa volcano update: Fissure 4 is sluggish, Fissure 3 flows still travel on flat ground

One of the other dramatic views of descending lava flows visible from Mauna Kea early this morning (image: USGS)
The effusive eruption on the Northeast Rift Zone continues with little changes. ... Read all
Fri, 2 Dec 2022, 06:48

Maunaloa volcano update: lava flows from Fissure 3 slowed down by reaching flat area, but still heading to Saddle Road

Fountaining activity and spatter cone (image: USGS)
The eruption on the Northeast Rift Zone continues by two active fissure vents. ... Read all
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