Because deformation ...¶
allows for quantifying the volume of magma stored at depth
warns in advance of the potential ascent of magma or gas toward the surface
makes it possible to map the spatial extent and volume of volcanic products discharged at the surface

Source of central figure : Janssen (2007), J. Spatial Science, after Abidin (1998).
Learn more about how to measure volcano deformation, and what it can teach us¶
Biggs, J., & Pritchard, M. E. (2017). Global volcano monitoring: What does it mean when volcanoes deform?. Elements, 13(1), 17-22. Biggs & Pritchard (2017)
Segall, P. (2010). Earthquake and volcano deformation. In Earthquake and volcano deformation. Princeton University Press. ISBN-10: 0691133026. ISBN-13: 978-0691133027. https://
uspc -upde .alma .exlibrisgroup .com /view /action /uresolver .do ?operation = resolveService & package _service _id = 20179740760005806 & institutionId = 5806 & customerId = 5800 Segall (2010)
- Janssen, V. (2007). Volcano deformation monitoring using GPS. Journal of Spatial Science, 52(1), 41–54. 10.1080/14498596.2007.9635099
- Biggs, J., & Pritchard, M. E. (2017). Global Volcano Monitoring: What Does It Mean When Volcanoes Deform? Elements, 13(1), 17–22. 10.2113/gselements.13.1.17
- Segall, P. (2010). Earthquake and Volcano Deformation. Princeton University Press. 10.1515/9781400833856