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

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

doi:https://doi.org/10.5194/nhess-23-1029-2023

Articles | Volume 23, issue 3

https://doi.org/10.5194/nhess-23-1029-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-23-1029-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 3

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

Supplement

https://doi.org/10.5194/nhess-23-1029-2023-supplement

Data sets

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

Download

Article (10168 KB)
Full-text XML

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.