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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Understanding and forecasting phreatic eruptions driven by magmatic degassing

Fig. 2

[Reproduced with permission from Conde et al. (2014) and de Moor et al. (2016a, 2017b)]

Turrialba monitoring data for 2008–2017 showing cumulative real-time seismic amplitude measurement (RSAM), SO2 emissions, and eruptions during this period. Note the episodic RSAM behavior, the steady output of SO2, and the significant increase in eruptive activity beginning in 2015. Periods of low SO2 flux before the 29 October 2014 eruption suggest partial sealing of the system beforehand.

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