Date: Thursday, 23 April 2026
Time: 6pm (doors open at 5.30 pm)
Speaker: Pilar Villamor, Earth Sciences NZ
Venue: Lecture Theatre 1, EIT Taradale, Napier
Admission: Gold coin donation
This year’s Geoscience Tour lecture will review 25 years of trenching active faults in volcanic environments and how a scientist’s perspective on tectonics close to volcanoes changed through that time, from the simple utilisation of volcanic stratigraphy as timelines for paleo- earthquake history to a realisation that volcanic and tectonic processes are so intimately connected that one cannot be understood without the other. Pilar will show paleoseismic evidence based on criteria that she developed to distinguish types of earthquakes–eruption associations. Paleoseismic data, combined with geomorphology, borehole data, and geophysics, revealed strong temporal links between fault ruptures and volcanic eruptions. She will also draw on worldwide historical examples and stress modelling to infer possible crustal processes that can explain these time associations. Collectively, these studies improve our understanding of how volcanic eruptions and unrest are linked to active faults and earthquakes in the TVZ.




Pilar is an internationally respected earthquake geologist and principal scientist whose research on active faults and volcano–tectonic interactions in Aotearoa New Zealand has had a transformative impact on our understanding of natural hazards. Pilar’s recent studies show that the recurrence of fault ruptures in the Taupō Volcanic Zone (TVZ) can be strongly modulated by volcanic activity, and vice versa. The novelty of her work lies in combining paleoseismic trenching with multidisciplinary approaches to demonstrate causal links between earthquakes and eruptions. This
represents a paradigm shift for New Zealand hazard science.














