Figure 4
From: Triggering of eruptions at Axial Seamount, Juan de Fuca Ridge
(a) Plot of model-predicted reservoir overpressure and (b) reservoir volume increase (various symbols – see legend – scale at left) necessary to reproduce the observed deformation preceding eruptions of Axial Seamount (grey line, scale at right). For clarity, shaded gray regions distinguish the 1998–2011 eruption cycle from the 2011–2015 eruption cycle in light blue. Dates above the figure indicate the time at which model-predicted eruption occurred, and stars indicate dates of observed eruptions. Note in (a) that the three temperature dependent models predict eruption onset at a similar overpressure threshold of 12–14 MPa (pink band).
