Julia Crummy

Dr Julia Crummy

BGS Edinburgh

Julia is a volcanologist specialising in explosive volcanic eruptions and associated hazards. Her main interests lie in volcanic hazards and impacts of volcanic eruptions on all scales, from local communities to national and global. Julia’s recent research focuses on the implications of volcanic hazards on international tourists; physical vulnerability of buildings to tephra fall and the impacts following multi-hazard events. Julia’s background is in geological mapping, specifically using volcanic stratigraphy, tephrochronology and the petrology of eruption deposits to understand past behaviour and potential future behaviour. Her research includes volcanic hazard analyses in Ethiopia, Ascension Island and Mexico using a scenario-based approach and expert elicitation to determine frequency, magnitude and likelihoods of potential future eruptions.

Julia Crummy’s Biography

  • 2013 – ongoing : BGS Volcanologist
  • 2009 – 2013 : PhD (University of Leeds): Holocene Evolution of the Colima Volcanic Complex, Mexico
  • 2007 – 2009 : BGS Offshore Data Manager
  • 2003 – 2007 : Exploration geologist working on gold, silver and base metal projects in Peru, Ecuador, Sweden and Dominican Republic; Christopher James Gold Corporation, International Minerals Corporation, MinMet PLC
  • 1999 – 2003 : University of Aberdeen – BSc Geoscience Hons

Research interests

  • Explosive volcanism – field mapping and stratigraphic correlation of tephra fall deposits; using petrology and geochemistry to understand past and potential future explosive activity
  • Volcanic hazards – tephra fall hazard analysis using numerical modelling,  scenario-based approaches and expert elicitation
  • Disaster Risk Reduction – understanding the impacts of volcanic hazards, from physical, systemic and social vulnerability of communities to impacts on international tourists

Current projects and collaboration

  • 2020 – ongoing: SIGMA4DRR – development of field data collection modules for Building Exposure and post-event damage and impact data for the BGS▪SIGMA system
  • 2019 – 2021: Volcanic and other natural hazards in Iceland and implications for International tourists: case study of UK tourists in Iceland (EUROVOLC Trans-national Access project)
  • 2018 – 2021: EUROVOLC – European Network of Observatories and Research Infrastructures for Volcanology. H2020 Research Infrastructure Project
  • 2014 – 2021: Rift Volcanism: Past, Present, Future. Understanding tephra fall hazard in Ethiopia

ORCID: 0000000226668397

Key papers

  • Crummy, JM, Smith, N, Lawrie, K, Bow, J, Gillespie, M, Ciurean, R, Loughlin, SC 2021. BGS▪SIGMA for Disaster Risk Reduction: data collection and analysis toolkit for physical vulnerability assessment in multi-hazard environments. British Geological Survey Internal Report, IR/21/040.  36pp.
  • Crummy, J.M., Vye-Brown, C., Marchant, B., Leeming, K., Loughlin, S.C. 2021. Estimation of the frequency and magnitude of potential future eruptions from Ethiopian volcanoes through expert elicitation. British Geological Survey Internal Report, IR/21/013.  83pp.
  • Osman, S, Thomas, M, Crummy, J, and Carver, S. 2022. Investigation of geomechanical properties of tephra relevant to roof loading for application in vulnerability analyses. Journal of Applied Volcanology, 11(1), pp.1-17. DOI: https://doi.org/10.1186/s13617-022-00121-2
  • Brown, R J, Hernández, W, Escobar, D, Gutierrez, E, Crummy, J, Cole, R, and Tournigand, P Y. 2022. Reconstruction of the 29th December 2013 eruption of San Miguel volcano, El Salvador, using video, photographs, and pyroclastic deposits. Volcanica, 5(2), pp.271-293. DOI: https://doi.org/10.30909/vol.05.02.271293
  • Tierz, P, Clarke, B, Calder, E S, Dessalegn, F, Lewi, E, Yirgu, G, Fontijn, K, Crummy, J M, Bekele, Y, and Loughlin, S C. 2020. Event trees and epistemic uncertainty in long‐term volcanic hazard assessment of Rift Volcanoes: the example of Aluto (Central Ethiopia). Geochemistry, Geophysics, Geosystems, 21 (10), e2020GC009219. DOI: https://doi.org/10.1029/2020GC009219
  • Crummy, J M, Savov, I P, Loughlin, S C, Connor, C B, Connor, L, and Navarro-Ochoa, C. 2019. Challenges of determining frequency and magnitudes of explosive eruptions even with an unprecedented stratigraphy. Journal of Applied Volcanology, 8(1), p.3.
  • Crummy, J M, Marchant, B, Loughlin, SC, Engwell, S, Tierz, P, Cuba, DM and Vye-Brown, C. 2018. Elicitation of frequency and magnitude of potential future explosive eruptions at Corbetti and Aluto volcanoes, Ethiopia BGS Open File Report (OR/18/061) , 27pp.
  • Crummy, J M, Savov, I P, Navarro-Ochoa, C, Morgan, D J, and Wilson, M. 2014. High-K Mafic Plinian Eruptions of Volcan de Colima, Mexico. Journal of Petrology, V.55, p2155-2192.
  • Vye-Brown, C, Crummy, J, Smith, K, Mruma, A and Kabelwa, H. 2014. Volcanic hazards in Tanzania BGS Open Report (OR/14/005) , 29pp.
  • Crummy, J M, Savov, I P, and Navarro-Ochoa, C. 2012. Holocene Evolution of the Colima Volcanic Complex: Insights from Tephrochronology, Petrology and Geochemistry. Cities on Volcanoes 7, Colima, Mexico, Field Excursion Guidebook.


  • Crummy, J M, Savov, I P, Navarro-Ochoa, C, and Morgan, D J. 2019. Holocene Eruption History and Magmatic Evolution of the Colima Volcanic Complex in Varley, N R, Connor C B and Komorowski, J C, eds., Volcán de Colima. Active volcanoes of the world. Springer.

Published outputs


  • Geological field mapping
  • Numerical modelling (Tephra2; tephraProb)
  • ArcGIS; QGIS
  • Public engagement
  • Science communication
  • Interdisciplinary research
  • Facilitation (expert elicitation; international meetings)
  • Working and carrying out research in cross-cultural and international environments
  • Positive, upbeat and open-minded person who loves working with others as part of a team!
  • Member of the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI)
  • Reviewer for Journal of Applied Volcanology; Geological Society of London; Volcanica

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