The Volcano Observatory Notice to Aviation (VONA) is a notification product used by volcano observatories globally to inform ...

Since 2000, specialists at the National Museum of Natural History have produced the world’s foremost report on active volcanoes Sally Sennert Did you know that there are between 40 and 50 volcanoes ...

6 A Vision for the USGS Volcano Hazards Program 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 ...

Previously, the giant volcano had been assigned an orange aviation hazard code, indicating that its activity could pose a threat to low-flying aircraft engines PETROPAVLOVSK-KAMCHATSKY, August 7.

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, ...

Aerial images show the devastation in Tonga left behind after a violent offshore volcanic eruption sparked a tsunami and clouded the sky with ash. Communications with the island nation have largely ...

Volcanic eruptions create some of nature’s most dramatic displays. Depending on their magnitude and location, they also have the potential for becoming major social and economic disasters. To date, ...