Showing posts with the label Volcanos

Torrential rains triggered the disastrous volcanic eruptions in Hawaii two years ago; Study.

Nature Research Will a changing climate make such events more frequent?  The answer? S ee footnote ! Lava flow from Kilauea south of Hawai'i Volcanoes Nat'l. Park. Photo by Ekrem Canli. A paper appearing in  Nature today,  suggests, t he 2018 eruption of the Kīlauea Volcano in Hawai’i may have been activated by extreme rainfall.  The findings indicate that rainfall should be taken into account when assessing volcanic hazards. Rainfall is known to trigger seismic events and can alter volcanic activity. However, observations of such effects are limited to the shallow subsurface of the volcano, and it is unknown whether rainfall can activate deep magma movement. The eruption of the Kīlauea Volcano in Hawai’i was complex and multi-stage, but its trigger has been unknown. From May to August 2018, rifts opened around Kīlauea and the summit exhibited explosive eruptions and caldera collapse.  Jamie Farquharson and Falk Amelung examined the impact of rainfall on the 20