Goldilocks conditions required for earthquakes to trigger basaltic eruptions: Evidence from the 2015 Ambrym eruption
Ian Hamling, Geoff Kilgour
Abstract
O-saturated and at lower temperatures than those expected for newly intruded basalts. Too hot and the stress drop required to grow the bubbles is too large, too cold and the magma can no longer flow. These observations suggest that partially cooled and crystallized basaltic magmas are more susceptible to triggering from earthquakes.
Topics & Concepts
GeologyVolcanoMagmaSeismologyDikeIntrusionBasaltMagma chamberOverpressureLateral eruptionEarthquake swarmVulcanian eruptionExplosive eruptionEffusive eruptionPetrologyGeochemistryInduced seismicityThermodynamicsPhysicsearthquake and tectonic studiesGeological and Geochemical AnalysisHigh-pressure geophysics and materials