There is an increase in volcanic sulfur dioxide emissions but there is a decrease in rockfall and pyroclastic density current ...

The Philippine Institute of Volcanology and Seismology has observed an increase in volcanic sulfur dioxide emissions from ...

Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory ...

Kilauea is in a unique phase of activity in Halema‘uma‘u, with 12 episodes of dual lava fountains since Dec. 23, 2024. Several past eruptions have been characterized by similar lava fountaining ...

Volcanoes can behave in strikingly different ways, even when they appear nearly identical. Some release slow, steady lava ...

Introduction -- Global distribution of active volcanoes / Elizabeth Cottrell -- Basaltic lava flow hazard / Andrew J. L. Harris -- Impacts from volanic ash fall / Thomas M. Wilson, Susanna Jenkins, ...

The committee hopes that if a major eruption were to occur in the United States in the year 2010, the USGS VHP would be prepared to respond in a manner more similar to Prologue 2 than to Prologue 1.

Volcanic eruptions result from the ascent of magma from subsurface reservoirs to the Earth’s surface, where variations in pressure and volatile content determine whether eruptions are effusive or ...

The eruption of Mount Pinatubo volcano in June 1991 is the second largest volcanic eruption of the twentieth century. Understanding how volcano activity may change over time is particularly important ...

Mount Etna has long puzzled geologists because it doesn't fit any of the three classic ways volcanoes are thought to form. A ...