Hawaii volcano eruption: Major explosions IMMINENT - USGS warns more to come
PAHOA, Hawaii — Frustration, anxiety and unpredictable 2,000-degree lava are taking their toll on volcano evacuees on Hawaii’s Big Island while they await an “imminent” eruption that could rain car-size boulders and ash onto this tropical paradise.
there is a scale that is used to rate the strength of volcanic eruptions. its called the VEI,the volcanic explosivity index
they have used it to rate kileauea’s eruptions over the past 12000 years
the strongest eruption was in 1790. that was rated a 4 of the scale
the 1924 eruption that they think this one could replicate was a 2
on that scale mt st helens was a 5
mt pinatubo in the Philippines in the early 90’s was a 6 as was krakatoa
tambora which wased the year without summer in 1815 was a 7
yellowstone was an 8
a 4 rated eruption occurs worldwide every few years
Facts on the stability of Kilauea’s south flank, past and present.
May 14, 2018
There is no geologic evidence for past catastrophic collapses of Kīlauea Volcano that would lead to a major Pacific tsunami, and such an event is extremely unlikely in the future based on monitoring of surface deformation. Kīlauea tends to “slump”, which is a slower type of movement that is not associated with tsunamis, although localized tsunamis only affecting the island have been generated by strong earthquakes in the past.
Geologic history combined with models of south flank motion suggest that the likelihood of a catastrophic failure event is incredibly remote. There are certainly signs on the ocean floor for landslides from other volcanoes on the Island of Hawaii and from other islands, but none are associated with Kīlauea. In addition, Kīlauea has experienced much larger earthquakes and magmatic intrusions in the recent past. The large earthquakes of 1975 and 1868 were not associated with significant south flank landsliding, nor were major East Rift Zone intrusions in 1840 and 1924