History has seen some monstrous volcanic eruptions, from Mount Pinatubo's weather-cooling burp to the explosion of Hunga Tonga-Hunga Ha'apai on the island nation of Tonga. The power of such eruptions is measured using the Volcanic Explosivity Index (VEI), a classification system developed in...
In Iceland tephra is the ideal volcanic deposit to study eruption history as two out of every three eruptions taking place there during the last 11 centuries have been explosive, leaving tephra as their only product. If eruptions producing both lava and tephra are included three out of every ...
Throughout history, the planet has been subjected to a myriad of catastrophic events that have reshaped landscapes, devastated communities, and altered the course of human history. From the overwhelming force of storm surges and the destructive power of major disasters like volcanic eruptions and hea...
R. Wally Johnson: fire mountains of the islands—a history of volcanic eruptions and disaster management in Papua New Guinea and the Solomon IslandsThorough scholarship and personal experiences provide a rich framework for eruption histories throughout the region. Especially valuable is the recent ...
The Influence of Volcanism, Soils, and Climate in the Endemicity Levels of Asteraceae in the Arequipa Region (Southern Peru) VOLCANIC eruptionsWe present the diversity of Asteraceae in the Arequipa Region of southern Peru, an area strongly influenced by volcanism, which has given ... A Galán-...
Fresco of Mount Vesuvius, preserved in Pompeii's House of the Centenary.Photo Credit: Wikipedia Along with quicksand, volcanic eruptions are not quite the everyday threat we all perceived them to be when we were children. But they still have the potential to be catastrophic, world-changing even...
R. Wally Johnson: fire mountains of the islands-a history of volcanic eruptions and disaster management in Papua New Guinea and the Solomon Islands Fire Mountains of the Islands is a comprehensive history of eruptions observed in Papua New Guinea and the Solomon Islands. The first published ...
For eight months in 1783-83, lava poured out of Iceland's Laki volcano. It wasn't an explosive eruption, but it played a critical role in shaping volcanism in Iceland and around the world. The aftermath of the eruptions devastated Iceland. During the eruption, toxic gases like sulfur diox...
Iceland is a volcanic island primarily because of its location on the Mid-Atlantic Ridge, which separates the North American and Eurasian Earth plates. This causes the island to be active geologically, as the plates are constantly moving away from each other. In addition, Iceland lies on a hot...
Mount St. Helens eruption(1980), Washington – While dwarfed in comparison to the rest of the eruptions on this list – for context, La Garita’s deposit was 5,000 times larger – this 1980 explosion reached a level 5 on the VEI and was the most destructive volcano to occur in the Un...