Articles | Volume 23, issue 3
https://doi.org/10.5194/nhess-23-1029-2023
https://doi.org/10.5194/nhess-23-1029-2023
Research article
 | 
06 Mar 2023
Research article |  | 06 Mar 2023

Characterizing the evolution of mass flow properties and dynamics through analysis of seismic signals: insights from the 18 March 2007 Mt. Ruapehu lake-breakout lahar

Braden Walsh, Charline Lormand, Jon Procter, and Glyn Williams-Jones

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18 March 2007 Mt. Ruapehu lahar seismic data Braden Walsh, Charline Lormand, Jon Procter, and Glyn Williams-Jones https://theghub.org/resources/4890

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Short summary
Here, we delve into the properties of a lake-breakout mass flow that grew up to a volume of ~ 4.4 × 106 m3 over the course of 83 km that occurred on 18 March 2007 at Mt. Ruapehu, Aotearoa / New Zealand. The combination of seismic analysis (frequency and directionality) with on-the-ground measurements (e.g., video, sediment concentration) shows how a lahar evolves over time and distance and how using seismic techniques can help monitor the ever-changing dynamics and properties of a flow event.
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