Skip to page navigation menu Skip entire header
Brown University
Skip 13 subheader links

Analysis of Gas Emission Periodicity for Turialba Volcano, Costa Rica


I am using crater photos taken every second at Turrialba Volcano, Costa Rica, to study temporal variation of light scattering associated with the emission of water vapor from the volcano. Gas emission is often used as a potential proxy for magmatic activity and volcanic unrest. Here, we use this series of images to draw comparison about the periodicity of outgassing signals between and just prior to eruptions over January to April 2017. Preliminary results suggest that pre-eruption gas emissions have an abnormal increase in periodic emissions at around 100 seconds, when compared to background gas emission. This is important because eruption precursors could significantly help monitoring volcanoes and regulate access to or near the crater.


Blackstone, Laura, "Analysis of Gas Emission Periodicity for Turialba Volcano, Costa Rica" (2018). Summer Research Symposium. Brown Digital Repository. Brown University Library.



  • Summer Research Symposium

    Each year, Brown University showcases the research of its undergraduates at the Summer Research Symposium. More than half of the student-researchers are UTRA recipients, while others receive funding from a variety of Brown-administered and national programs and fellowships and go …