18 January 2013
Details of around 2,000 major volcanic eruptions which occurred over the last 1.8 million years have been made available in a new open access database, complied by scientists at the University of Bristol with colleagues from the UK, US, Colombia and Japan.
Eruption column from the explosive phase of the Eyjafjallajokull eruption drifting over a farm 10km to the south of the volcano, Iceland, 8 May 2010
Image by Dr Susanna Jenkins
The open access database of Large Magnitude Explosive Eruptions (LaMEVE) will provide this crucial information to researchers, civil authorities and the general public alike.
Compiled by an international team headed by Dr Sian Crosweller from the Bristol's School of Earth Sciences with support from the British Geological Survey, the LaMEVE database provides – for the first time – rapid, searchable access to the breadth of information available for large volcanic events of magnitude 4 or greater with a quantitative data quality score.
The long-term goal of this project is to have a global source of freely available information on volcanic hazards that can be used to develop protocols in the event of volcanic eruptions.
Currently, data fields include: magnitude, Volcanic Explosivity Index (VEI), deposit volumes, eruption dates, and rock type; such parameters constituting the mainstay for description of eruptive activity.
Planned expansion of LaMEVE will include the principal volcanic hazards (such as pyroclastic flows, tephra fall, lahars, debris avalanches, ballistics), and vulnerability (for example, population figures, building type) – details of value to those involved in research and decisions relating to risk.
LaMEVE is the first component of the Volcanic Global Risk Identification and Analysis Project (VOGRIPA) database for volcanic hazards developed as part of the Global Volcano Model (GVM).
Principal Investigator and co-author, Professor Stephen Sparks of Bristol's School of Earth Sciences said: "The long-term goal of this project is to have a global source of freely available information on volcanic hazards that can be used to develop protocols in the event of volcanic eruptions.
"Importantly, the scientific community are invited to actively participate with the database by sending new data and modifications to the database manager and, after being given clearance as a GVM user, entering data thereby maintaining the resource's dynamism and relevance."
LaMEVE is freely available online.
'Global database on large magnitude explosive volcanic eruptions (LaMEVE)' by Helen Sian Crosweller, Elizabeth Cottrell, Natalia Irma Deligne, Natalie Ortiz Guerrero, Laura Hobbs, Koji Kiyosugi, Susan Clare Loughlin, Lee Siebert, Robert Stephen John Sparks, Shinji Takarada in the Journal of Applied Volcanology
The Cabot Institute at the University of Bristol carries out fundamental and responsive research on risks and uncertainties in a changing environment. Our interests include natural hazards, food and energy security, resilience and governance, and human impacts on the environment. Our research fuses rigorous statistical and numerical modelling with a deep understanding of interconnected social, environmental and engineered systems – past, present and future. We seek to engage wider society – listening to, exploring with, and challenging our stakeholders to develop a shared response to twenty-first century challenges.