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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.
Last earthquakes nearby
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Hawaii - Birthplace of Islands (14 days walking and study tour to Oahu, Kauai, Maui, Hawai'i)

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Volcano news: Mauna Loa volcano (Big Island, Hawaii)

Mauna Loa (Hawaii) volcano activity update: seismicity above background, continued summit inflation.

Saturday Oct 05, 2019 13:05 PM | BY: MARTIN

Source: US Geological Survey
Source: US Geological Survey
During the past week, approximately 40 small-magnitude earthquakes (all smaller than M2.5) were detected beneath the upper elevations of Mauna Loa. Most of the earthquakes occurred at shallow to intermediate depths of less than 10 km (~6 miles) below ground level.
Fumarole temperature and gas concentrations at the Sulphur Cone monitoring site on the Southwest Rift Zone remain stable, but are slightly elevated from measurements from several weeks ago due to repositioning and servicing of instrument sensors during maintenance in mid-September by HVO field crews.
Source: USGS Volcano Update 3 October 2019
Previous news
Earthquakes under Manua Loa during the past week (image: HVO / USGS)
Wednesday, Jul 03, 2019
The alert level for the volcano has been raised to yellow two days ago. This doesn't mean that an eruption is expected to occur in a near future, but acknowledges that the volcano is currently preparing itself for its next eruption, which will come, sooner or later, but currently without possibility to indicate a specific time frame. ... [more]
5-years trend of inflation of Mauna Loa volcano (image: HVO / USGS)
Saturday, Jun 08, 2019
The Hawaiian volcano observatory (HVO) reported a slight increase in tiny earthquakes at shallow depths beneath the summit caldera as well as continuing trend of inflation. However, even though these are likely long-term precursors of the volcano preparing itself for its next eruption, current unrest does not merit an increase of the official alert level (green), and no eruption is expected in the near to medium-term future (weeks to months). ... [more]
Friday, Jun 22, 2018
Volcanic unrest at the volcano has ceased (at least for now), and the volcano observatory lowered the alert level of the volcano back to "normal" (green): ... [more]
M4.0 earthquake under Mauna Loa today
Tuesday, Sep 06, 2016
A magnitude 4.0 earthquake occurred at 2.4 km depth beneath the summit caldera of the volcano half an hour ago (04:25 am in Hawaii). ... [more]
Weekly earthquake rate of Mauna Loa during the past year (HVO)
Monday, Jul 25, 2016
The volcano is not erupting, but continues to show unrest. Deformation and seismic activity remain above long-term background levels. ... [more]

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