A big question we are trying to answer is: What happens when a volcano erupts in Auckland? To answer this we are studying the timing, size, location, and deposits of past eruptions to look for patterns, and to identify the threats to Auckland from future eruptions. We are also interested in related hazards, such as earthquakes, tsunami and fire.
Several eruption scenarios set the scene for developing better volcanic risk mitigation and asset management practices.
Observations and numerical models can help explore the depositional mechanisms, macroscale current dynamics, and potential impact on the city of dilute pyroclastic density currents (PDCs) in the Auckland Volcanic Field (AVF).
Tags:Aucklandbase surgecurrentdensitydynamicsEmergency Managementfieldimpactmodelspyroclasticvolcanic
A detailed study of the ancient and modern topography of New Zealand’s most populous city, Auckland, has revealed significant concealed fault offsets beneath the region’s volcanic field deposits.
Tags:AucklandAuckland Volcanic Field (AVF)block faultingborehole analysisconcealed faultsfaultsfieldgeologyJunction Magnetic AnomalymagneticstructuraltopographyvolcanicWaitematā Group erosion surface
Ocean-generated ambient seismic noise has revealed estimated crustal shear-wave velocity profiles beneath the Auckland Volcanic Field.
Tags:ambient seismic noiseAuckland Volcanic Fieldcrustal structureDun Mountain–Maitai TerraneNew Zealandtomography
Holocene ash fall from both local and distal volcanoes has affected Auckland more frequently than previously documented, with a possible average frequency of at least once every 424 years.
The orientation of horizontal components of borehole seismometers is unknown on installation.
However, it is crucial to any multicomponent seismic analysis.