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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
Mauna Loa volcano tours
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)

Fri, 24 Jan 2020, 23:31
Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
During the past week, HVO seismometers recorded 99 small magnitude earthquakes beneath the upper elevations of the volcano; the strongest was a magnitude-3.1 earthquake on January 21. Most earthquakes occurred at shallow depths of less than 5 km (~3 miles) beneath the volcano's surface. ...more [read all]
Sun, 12 Jan 2020, 16:13
During the past week, HVO seismometers recorded 56 small magnitude earthquakes beneath the upper elevations of the volcano. Most earthquakes occurred at shallow depths of less than 5 km (~3 miles) beneath the volcano. ...more [read all]
Thu, 19 Dec 2019, 23:06
HVO report that Mauna Loa volcano is not currently erupting. The deformation and seismicity rates have not changed substantially over the past week and remain above long-term background levels. ...more [read all]
Sun, 8 Dec 2019, 21:00
Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
HVO report that during the past week, approximately 70 small-magnitude earthquakes (nearly all smaller than M2.0) were detected beneath the upper elevations of Mauna Loa. Most of the earthquakes occurred at shallow depths of less than 6 km (around 4 miles) below sea level. ...more [read all]
Sun, 24 Nov 2019, 20:05
During the past week, HVO detected approximately 62 small-magnitude earthquakes (most of them were smaller than M2.0) beneath the upper elevations of Mauna Loa. Most of the earthquakes occurred at shallow depths of less than 5 km (~3 miles) below sea level. ...more [read all]
Sun, 17 Nov 2019, 19:12
Mauna Loa caldera, image captured from HVO's MLcam (C) U.S. Geological Survey
The seismicity and deformation levels on Mauna Loa volcano have not changed considerably over the past few weeks, but still remain elevated above background levels. ...more [read all]
Sat, 5 Oct 2019, 13:05
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. ...more [read all]
Wed, 3 Jul 2019, 08:00
Earthquakes under Manua Loa during the past week (image: HVO / USGS)
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 [read all]
Sat, 8 Jun 2019, 08:34
5-years trend of inflation of Mauna Loa volcano (image: HVO / USGS)
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 [read all]
Fri, 22 Jun 2018, 06:30
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 [read all]

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