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Maunaloa volcano update: decreased alert status to Green following calm period

Fri, 17 Mar 2023, 06:04 06:04 AM | BY: MARTIN
Moku‘Āweoweo caldera from the NW rim (image: HVO)
Moku‘Āweoweo caldera from the NW rim (image: HVO)
Snow-covered Maunaloa and Kilauea (right) as seen from space on 8 March (image: Sentinel-2)
Snow-covered Maunaloa and Kilauea (right) as seen from space on 8 March (image: Sentinel-2)
The volcano has remained at calm stage since the effusive eruption ended on 13 December, 2022.
The number of earthquakes beneath the edifice has returned to background levels.
An inflation continues to be registered as magma refills the upper magma chamber.
Thus, the Hawaiian Volcano Observatory is lowering the Volcanic Alert Level to "Green".
Source: Hawaiian Volcano Observatory volcano activity update 17 March 2023

Previous news

Thu, 16 Mar 2023, 11:00

Mauna Loa volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 15 March-21 March 2023 (Continuing Activity)

HVO reported that Mauna Loa had been quiet since the eruption ended on 13 December 2022 and the number of earthquakes beneath the summit had returned to background levels. Inflation continued as magma replenished the summit reservoir. On 16 March HVO lowered the Volcano Alert Level to Normal (the lowest level on a four-level scale) and the Aviation Color Code to Green (the lowest level on a four-color scale). ... Read all
Wed, 14 Dec 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
Show more
Maunaloa volcano
Shield volcano 4170 m / 13,681 ft
Big Island, Hawai'i, 19.48°N / -155.61°W
Current status: normal or dormant (1 out of 5) Maunaloa volcano eruptions:
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)
Typical eruption style
Dominantly effusive.

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