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Natural Hazards

volcanic hazard

Let the ash fall, but get ready for its consequences

May 27, 2019
Let the ash fall, but get ready for its consequences
Figure 1. May 18th, 1980 eruption of Mt St Helens eruption. Images from UGSG

The past 18th May marked 39 years since one of the most emblematic volcanic eruptions in historic times: the 1980 Mt St Helens explosive eruption. With a death toll of 57 victims, it is the deadliest volcanic event in U.S. history. If that wasn’t enough, it also destroyed hundreds of houses and roads. When we think about explosive volcanic eruptions what commonly comes in our minds about the possi ...[Read More]

The collapse of Anak Krakatau volcano: a scenario envisaged

February 4, 2019
The collapse of Anak Krakatau volcano: a scenario envisaged
Anak Krakatau August 2018. Photo credit: James Reynolds (EarthUncutTV) with permission.

The volcano ID Krakatoa or Krakatau, in Indonesia, is part of the Ujung Kulon National Park, a UNESCO World Heritage property, and among the most (in)famous volcanoes in the world. From a geological point of view, it is part of the Indonesian island arc system generated by the north-eastward subduction of the Indo-Australian plate (Figure 1). Krakatau is now a caldera type of volcano thanks to the ...[Read More]