New Method Offers Early Volcano Eruption Warnings
New Method Offers Early Volcano Eruption Warnings
US · Published Oct 21, 2026
• A new monitoring method developed at Piton de la Fournaise on Réunion Island has demonstrated the ability to provide early warnings for volcanic eruptions using a single broadband seismometer.
• The system, which detects a faint signal called 'Jerk,' has successfully flagged 22 of 24 eruptions over a decade, with alarms arriving minutes to hours before lava reaches the surface.

Impact & Risks

The new 'Jerk' monitoring system could significantly improve evacuation times for communities near volcanoes, potentially saving lives during eruptions. However, the method has limitations, such as false signals from tropical cyclones and challenges with stealthy magma pathways. Despite these issues, the system provides a promising tool for regions lacking comprehensive monitoring networks, including tropical and equatorial volcanoes.

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