Ariane Ducellier

Ariane Ducellier

Research scientist

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portfolio

publications

Depth and thickness of tectonic tremor in the northeastern Olympic Peninsula

Published in Journal of Geophysical Research: Solid Earth, 2021

In this paper, we use seismic data from small-aperture arrays in the Olympic Peninsula, and tremor epicenters determined by a previous study to compute the depth of the tremor from S minus P times determined from stacking horizontal-to-vertical cross-correlations of seismic data. The tremor is located close to the plate boundary in a region no more than 2-3 kilometers thick.

Recommended citation: Ducellier, A., & Creager, K. C. (2022). Depth and thickness of tectonic tremor in the northeastern Olympic Peninsula. Journal of Geophysical Research: Solid Earth, 127, e2021JB022708. https://doi.org/10.1029/2021JB022708.

An 8-year-long low-frequency earthquake catalog for southern Cascadia

Published in Journal of Geophysical Research: Solid Earth, 2022

In this paper, we establish an eight-year-long low-frequency earthquake catalog for southern Cascadia. Families from the subduction zone are mainly active during the big tremor episodes, with down dip families more active than up dip families. LFE activity is sensitive to tidal stress changes.

Recommended citation: Ducellier, A., & Creager, K. C. (2022). An 8-year-long low-frequency earthquake catalog for southern Cascadia. Journal of Geophysical Research: Solid Earth, 127, e2021JB022986. https://doi.org/10.1029/2021JB022986.

Detection of slow slip events using wavelet analysis of GNSS recordings

Published in Bulletin of the Seismological Society of America, 2022

In this paper, we use a wavelet-based signal processing method to detect transients in GNSS data, such as slow slip events. In Northern Cascadia, there is good agreement between detections of slow slip using GNSS data and using tremor data. The method can be applied as a starting point to identify slow slip without prior information. New Zealand is shown as on example.

talks

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

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Teaching experience 2

Workshop, University 1, Department, 2015

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