Taupōinflate: illustrating detection limits of magmatic inflation below Lake Taupō

The 2001 Taupō Fault Belt Seismicity as Evidence of Magma‐Tectonic Interaction at Taupō Volcano

“…(2009) argued that an inflating pressure source best explained deformation over this time, although 0.005–0.02 m yr −1 of subsidence observed on the northwestern shore prompted the source to be placed ∼11 km beneath the northeastern lake rather than beneath the Western Bay. However, modeling of inflation scenarios at Taupō volcano suggests that the overlying lake could effectively mask deformation signals associated with an intruding body (Ellis et al., 2007, 2022), which would account for the lack of uplift reported along the northwestern shore. We therefore conclude that an intrusion beneath the Western Bay is the most likely cause of the 2001 unrest.…”

The Response of Taupō Volcano to the M7.8 Kaikōura Earthquake

“…However, the size and depth of the modeled dikes vary greatly with 95% confidence intervals of 0.1–8.5 m opening, and 0.8–3.9 km depth, respectively. This range in model parameters reflects the relatively sparse GNSS network (Ellis et al., 2022). The optimal solution has a depth to the top of the dike of ∼2 km, a strike of 240°, and an opening of 3.9 m. The modeled horizontal deformation agrees well with the observations, but the vertical deformation is predicted to be larger than is observed (Figure 3a).…”