Michael A. Clare
Seismic and Acoustic Monitoring of Submarine Landslides: Ongoing Challenges, Recent Successes, and Future Opportunities
Clare, Michael A.; Lintern, Gwyn; Pope, Edward; Baker, Megan; Ruffell, Sean; Zulkifli, Mohammad Zaki; Simmons, Steven; Urlaub, Morelia; Belal, Mohammed; Talling, Peter J.
Authors
Gwyn Lintern
Edward Pope edward.pope@durham.ac.uk
Honorary Fellow
Dr Megan Baker megan.l.baker@durham.ac.uk
Assistant Professor
Sean Ruffell sean.ruffell@durham.ac.uk
PGR Student Doctor of Philosophy
Mohammad Zaki Zulkifli
Steven Simmons
Morelia Urlaub
Mohammed Belal
Professor Peter Talling peter.j.talling@durham.ac.uk
Professor
Contributors
Gaye Bayrakci
Editor
Frauke Klingelhoefer
Editor
Abstract
Submarine landslides pose a hazard to coastal communities and critical seafloor infrastructure, occurring on all of the world's continental margins, from coastal zones to hadal trenches. Offshore monitoring has been limited by the largely unpredictable occurrence of submarine landslides and the need to cover large regions. Recent subsea monitoring has provided new insights into the preconditioning and run-out of submarine landslides using active geophysical techniques. However, these tools measure a small spatial footprint and are power- and memory-intensive, thus limiting long-duration monitoring. Most landslide events remain unrecorded. In this chapter, we first show how passive acoustic and seismologic techniques can record acoustic emissions and ground motions created by terrestrial landslides. This terrestrial-focused research has catalyzed advances in characterizing submarine landslides using onshore and offshore networks of broadband seismometers, hydrophones, and geophones. We discuss new insights into submarine landslide preconditioning, timing, location, velocity, and down-slope evolution arising from these advances. Finally, we outline challenges, emphasizing the need to calibrate seismic and acoustic signals generated by submarine landslides. Passive seismic and acoustic sensing has a strong potential to enable more complete hazard catalogs to be built and open the door to emerging techniques (such as fiber-optic sensing) to fill key knowledge gaps.
Citation
Clare, M. A., Lintern, G., Pope, E., Baker, M., Ruffell, S., Zulkifli, M. Z., …Talling, P. J. (2024). Seismic and Acoustic Monitoring of Submarine Landslides: Ongoing Challenges, Recent Successes, and Future Opportunities. In G. Bayrakci, & F. Klingelhoefer (Eds.), Noisy Oceans: Monitoring Seismic and Acoustic Signals in the Marine Environment (59-82). Wiley. https://doi.org/10.1002/9781119750925.ch5
Online Publication Date | Dec 8, 2023 |
---|---|
Publication Date | Feb 28, 2024 |
Deposit Date | Apr 3, 2024 |
Publisher | Wiley |
Pages | 59-82 |
Series Title | Geophysical Monograph Series |
Book Title | Noisy Oceans: Monitoring Seismic and Acoustic Signals in the Marine Environment |
Chapter Number | 5 |
ISBN | 9781119750895 |
DOI | https://doi.org/10.1002/9781119750925.ch5 |
Public URL | https://durham-repository.worktribe.com/output/2286679 |
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