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Maunaloa volcano update: rate of lava flow slowed down and decreased its advance

Fri, 9 Dec 2022, 06:04 06:04 AM | BY: MARTIN
Pulsating lava fountains at Fissure 3 vent yesterday morning (image: USGS)
Pulsating lava fountains at Fissure 3 vent yesterday morning (image: USGS)
The latest Mauna Loa lava flow map and statistics (8 December, 10:00 AM local time) (image: USGS)
The latest Mauna Loa lava flow map and statistics (8 December, 10:00 AM local time) (image: USGS)
The effusive eruption on the Northeast Rift Zone continues with little changes.
Lava flows continue to ooze out from Fissure 3 on the northern slope, but decreased its advance this morning towards the Daniel K. Inouye Highway (Saddle Road), currently about 1.7 mi (2.8 km) from there.
The lava started to overflow channels near the vent where it extended to form a small spreading field of lava about 4.4 km from the vent as of 09:30 AM local time today. Lava channels below this spot appear to be out of lava and likely seem to no longer feed the main flow. The lava flow has become inactive along most of its length so far, but the flow front may appear to advance a bit as it settles.

The lava flow statistic (8 Dec, 10:00 AM local time)
Total area covered: 17.7 sq. miles
Area covered since 7 Dec: 0.07 sq. miles
Lava flow length: 12.1 miles

The gas plume contains 130,000 tonnes of sulfur dioxide (SO2) emissions measured on 7 Dec.
Volcanic gas is rising high and vertically into the atmosphere before being blown to the west at high altitude, generating vog (volcanic air pollution) in downwind areas. The International Volcanic Health Hazard Network has detailed information about vog: Forecasts for the dispersion of vog can be found on the Mauna Loa Vog Forecasting Dashboard:

Significant changes to morphology at Fissure 3 spatter cone throughout the last night (source: Phillip Ong/Hawaii Tracker)

Previous news

Thu, 8 Dec 2022, 05:34

Maunaloa volcano update: activity remains unchanged

The lava tube has formed close at the junction of two lava streams (image: USGS)
The eruption has been stable and continues on the Northeast Rift Zone. ... Read all
Wed, 7 Dec 2022, 15:00

Mauna Loa volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 30 November-6 December 2022 (New Activity / Unrest)

HVO reported that the Northeast Rift Zone eruption at Mauna Loa continued during 30 November-6 December. Fissure 4, at the lowest elevation, produced lava flows that moved NE at a rate of about 60 m per hour during 30 November-1 December and crossed the Mauna Loa Weather Observatory Road overnight. A smaller slower lobe of lava traveled E but had stalled by the afternoon of 1 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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