Multihazard

Mount Saint Helens 40 years later – May 18, 1980: for everything to stay the same, everything must change

Stefano Alberti June 22, 2020

Mount Saint Helens today image as captured from Google Earth.

Vancouver, Vancouver, this is it! Just a few words radioed by volcanologist David ‘Dave’ Johnston on May 18, 1980, to USGS headquarter in Vancouver, Washington State. It was 8:32 a.m., and a few hours later he lost his life during the (in)famous Mount Saint Helens eruption. That day, exactly forty years ago, the eruption of Mount St. Helen upset the world. It all started with a collapse on the nor ...[Read More]

How satellites measuring soil moisture provide a new understanding of rainfall patterns

Luca Brocca, Luca Ciabatta, Christian Massari, Stefania Camici, Paolo Filippucci February 24, 2020

Soil moisture and rainfall are the two fundamental variables in the water and energy cycle and their knowledge in many applications is crucial. For instance, for predicting the occurrence and the magnitude of flood and landslide events the knowledge of the initial soil moisture condition and of rainfall amount is mandatory. In the last decade, some authors have proposed a completely new approach, ...[Read More]

The Italian catalogue of earthquake-induced ground failures: saving the past for the future seismic hazard assessment #CEDIT

Gabriele Amato February 10, 2020

Salvatore Martino inventorying the rockslide close to Visso, triggered by the 26 October 2016 earthquake, which dammed the Nera river causing the flooding of the national road.

The Italian Catalogue of Earthquake-Induced Ground Failures (CEDIT) is a database available online since January 2013 that stores data about ground failures induced by strong earthquakes, which occurred on the Italian territory since 1000 AD up to now. CEDIT is freely available on a web-GIS portal (currently the access is granted using Firefox as a web browser, the upgrade to other browsers ...[Read More]

NH10 Multi-Hazards: The Latest EGU Natural Hazards Sub-Division

Joel Gill, Marleen de Ruiter July 8, 2019

Communities in Guatemala live in a dynamic multi-hazard landscape (Photo Credit: Joel Gill).

Earlier this year, the EGU Natural Hazards Division approved the addition of a new sub-division focused on the theme of ‘multi-hazards’. The Science Officers representing this sub-division, Joel Gill (British Geological Survey) and Marleen de Ruiter (IVM-VU Amsterdam), reflect on why this sub-division is necessary and how you can get involved. Many regions are affected by multiple natural hazards, ...[Read More]