Tyler Newton

Geophysics and Computational Science @ UO
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Research

Principal Stress Analyses

Investigating stress orientations within Earth’s crust through stress inversions of fault slip vectors.
Publication: Newton, T. J., Thomas, A. M. (2020). Stress orientations in the Nankai Trough constrained using seismic and aseismic slip. Journal of Geophysical Research: Solid Earth. https://doi.org/10.1029/2020JB019841
Impact: Combined traditional earthquake data with model-derived data (slow slip earthquakes) to better constrain the solutions to stress tensor inversions, revealing the presence of intrinsically weak fault materials in the Nankai Trough of Japan.

Poster: Newton, T. J. and Thomas, A. M. (2019) Principal stress orientations of the Nankai Trough megathrust constrained by seismic and aseismic slip. Poster at MCS RCN Megathrust Modeling Workshop.

Click here to view the full-size poster.


Constraining Vertical Land Movement

1. Multi-parameter model of vertical land movement in the Pacific Northwest.
Publications: Newton, T. J., Weldon, R. Miller, I. M., Schmidt, D., Mauger, G., Morgan, H., Grossman, E. (2021). An Assessment of Vertical Land Movement to Support Coastal Hazards Planning in Washington State. Water 13, no. 3: 281. https://doi.org/10.3390/w13030281
Miller, I.M., Morgan, H., Mauger, G., Newton, T., Weldon, R., Schmidt, D., Welch, M., Grossman, E. (2018) Projected Sea Level Rise for Washington State – 2018 Assessment Prepared for the Washington Coastal Resilience Project. https://cig.uw.edu/resources/special-reports/sea-level-rise-in-washington-state-a-2018-assessment
Impact: Quantified vertical land movement and relative sea level change throughout coastal Washington to inform risk management planning.
Vertical velocity model: click to download .asc file

2. Separating Cascadia subduction zone locking from other sources of vertical land motion.
Publication: Newton, T. J., Weldon, R. Miller, I. M., Schmidt, D., Mauger, G., Morgan, H., Grossman, E. (2021). An Assessment of Vertical Land Movement to Support Coastal Hazards Planning in Washington State. Water 13, no. 3: 281. https://doi.org/10.3390/w13030281
Impact: Quantified and removed a convolved signal (assumed to be GIA) within our Miller et al. (2018) dataset to reduce model error by 2%.
Poster: Newton, T. J., Weldon R. J., Schmidt D. A., Miller I. M. (2019) Vertical Land Motion in Western Washington: Separating Cascadia Locking from Other Sources. Poster at Seismological Society of America meeting.

Click here to view the full-size poster.


Optimizing Nodal Seismometers

Status: Protyping v2 and field testing. I have designed, developed, and tested positioning devices for Fairfield Nodal 5 Hz 3-component seismometers that allow users to accurately and quickly deploy nodes and quantify the sensor orientation. v2 contains an accelerometer, gyroscope, and magnetometer to quantify orientation, while v1 incorporated a bubble level and compass.


Durability tested by Atlas the dog.