1-1-1-1-1-1-1-1-1-1-1-1-1-1 From: "John Stix, Dr." <john.stix@xxxxxxxxx> IAVCEI 2023 session: We invite submissions to our session, â??Sudden explosive eruptions: understanding, forecasting, and mitigationâ?? Sudden explosive eruptions of small magnitude (VEI 1-3) occur frequently around the world. Small eruptions are more frequent than large eruptions, allowing more opportunities to study them. The eruptions occur with little or no warning. Hence they are extremely hazardous for persons in the vicinity of the crater, including local residents, scientists, civil protection personnel, and tourists. The occurrence of small, sudden eruptions could indicate that larger events will follow. Rapid analysis and interpretation of eruptive data are thus necessary for hazard assessment. The eruptions have a range of attributes, including phreatic (e.g., Ontake, Japan, 2014), phreatomagmatic (e.g., Poás, Costa Rica, 2017), and magmatic (e.g., Stromboli, Italy, 2019). We solicit contributions that deal with the following issues. (1) What are the underlying mechanisms driving these eruptions, including preparatory processes from the mantle to the surface, prior to an eruption? (2) What if any precursors occur before these eruptions, and are these forecast or hindcast? (3) What is the way forward in terms of improved forecasting of these eruptions? (4) What new methodologies, experiments, and studies are needed to better characterize and understand these eruptions? (5) How are people best protected from and informed about these types of eruptions? John Stix, Alessandro Aiuppa, and Maarten de Moor 1-1-1-1-1-1-1-1-1-1-1-1-1-1 ------------------------------
