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

Sat, 29 Feb 2020, 00:59 | 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
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.

Previous news

Fri, 21 Feb 2020, 14:54

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

The location of recorded earthquakes over the past week (C) U.S. Geological Survey
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. ... Read all
Fri, 14 Feb 2020, 21:31

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

Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
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. Read all
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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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Hawaii - Birthplace of Islands
14 days walking and study tour to Oahu, Kauai, Maui, Hawai'i
14 days / 13 nights - Moderate
Price 4990 €
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