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Mauna Loa Vulkan
Shield volcano 4170 m / 13,681 ft
Big Island, Hawai'i, 19.48°N / -155.61°W
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Volcano news: Mauna Loa volcano (Big Island, Hawaii)

Mauna Loa volcano (Big Island, Hawai'i) activity update

Friday Jul 05, 2013 15:26 PM | VON: T

Very weak unrest in the form of inflation and seismic activity continues at the largest active volcano of our earth, which has not erupted since 1984. However, this activity is not strong enough to justify a raise of the alert level from green "normal" to yellow "unrest". There is currently no sign that Mauna Loa will erupt any time soon.
HVO reports in its monthly update:
"Minor inflation of a shallow magma reservoir beneath Mauna Loa may be occurring. Seismicity rates were slightly elevated.
Deformation: Deformation of Mauna Loa continued to be dominated by southeasterly motion of the south flank. However, slow uplift also continues near the summit caldera (~1cm/yr at MLSP) suggesting that some inflation of the shallow magma reservoir complex beneath the summit area is occurring.
Seismicity: Seismic activity west of the summit was slightly above background levels. HVO seismic networks detected 1 shallow event below summit area , 9 mid-crustal events (5-13 km) to W and NW of summit, 4 shallow events on southwest rift, 1 shallow events on the NE rift zone.
Gas: No significant changes in SO2, CO2 were recorded by the Mokuaweoweo gas and temperature monitors during June. Fumarole temperature varied between 72 and 75 degrees during the month." (HVO)
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Wednesday, Jun 12, 2013
The latest update of the USGS mentions that minor inflation of a shallow magma reservoir beneath Mauna Loa may be occurring. Seismicity rates were slightly elevated. However, the level of observed seismicity is far from alarming and the alert level remains at green. No eruption is expected in the near future. ... [mehr]

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