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Mauna Loa volcano
Shield volcano 4170 m / 13,681 ft
Big Island, Hawai'i, 19.48°N / -155.61°W
Current status: restless (2 out of 5)
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Mauna Loa 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
Typical eruption style:
Dominantly effusive.
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Volcano news: Mauna Loa volcano (Big Island, Hawaii)

Mauna Loa volcano (Hawai'i): HVO weekly report

Saturday Mar 07, 2020 00:01 AM | BY: MATTHEW

Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
HVO recorded around 70 small-magnitude earthquakes beneath the volcano's upper elevations over the past week. Most of these earthquakes occurred at depths of less than 5 kilometers (~3 miles) below ground level. The summit is continually inflating where magma is being supplied to the volcano’s shallow storage region. Gas concentrations and fumarole temperatures are both stable.
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Links / Sources:
  • https://volcanoes.usgs.gov/volcanoes/mauna_loa/status.html
Previous news
Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
Saturday, Feb 29, 2020
There have been around 80 recorded small-magnitude earthquakes beneath Mauna Loa over the past week with the strongest measuring magnitude 2.9 in the early morning hours of February 27. Most events occurred at shallow depths of less than 5 kilometers (~3 miles) beneath the surface of the summit and upper flanks of the volcano. There is continuous slow summit inflation which HVO say is “consistent with magma supply to the volcano's shallow storage system.” Gas concentrations ad fumarole temperatures remain stable. [more]
The location of recorded earthquakes over the past week (C) U.S. Geological Survey
Friday, Feb 21, 2020
HVO recorded 44 small-magnitude earthquakes beneath Mauna Loa volcano's upper elevations. The strongest was a magnitude-2.2 on the 16th of February, at approximately 7 kilometers (around 4 miles) below the surface. This was deeper than most of the earthquakes which occurred at depths of less than 5 kilometers (around 3 miles) beneath the surface of the volcano. The volcano continues to inflate, due to magma being supplied to the volcano’s shallow storage region. Gas concentrations and fumarole temperatures remain stable. [more]
Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
Friday, Feb 14, 2020
31 small-magnitude earthquakes occurred beneath Mauna Loa over the past week. HVO recorded the strongest earthquake at magnitude 2.9, 13 km (8 miles) deep on February 9. According to HVO this was deeper than most earthquakes from the past week, which occurred less than 5 km (3 miles) deep. There is continued inflation at the summit where magma supply to the volcano’s shallow system continues. ... [more]
Channelized lava flow from the 1984 eruption of Mauna Loa (image: U.S. Geological Survey)
Thursday, Feb 06, 2020
134 small magnitude earthquakes were recorded by HVO beneath the upper elevations of the volcano over the past week; the strongest was a magnitude-2.4 earthquake on February 3. Most earthquakes occurred at shallow depths of less than 5 km (~3 miles) beneath the volcano's surface. ... [more]
Earthquake data for Mauna Loa volcano (C) U.S.Geological Survey
Saturday, Feb 01, 2020
During the past week, HVO seismometers recorded 107 small magnitude earthquakes beneath the upper elevations of the volcano; the strongest was a magnitude 2.3 earthquake on January 23. Most earthquakes occurred at shallow depths of less than 5 km (~3 miles) beneath the volcano's surface. ... [more]

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