Cascadia low frequency earthquakes at the base of an overpressured subduction shear zone

AJ Calvert, MG Bostock, G Savard… - Nature …, 2020 - nature.com
In subduction zones, landward dipping regions of low shear wave velocity and elevated
Poisson's ratio, which can extend to at least 120 km depth, are interpreted to be all or part of …

The 2017 ML 5.4 Pohang earthquake sequence, Korea, recorded by a dense seismic network

KH Kim, W Seo, J Han, J Kwon, SY Kang, JH Ree… - Tectonophysics, 2020 - Elsevier
Abstract The 2017 ML 5.4 Pohang Earthquake in southeastern Korea, which was induced by
fluid injection from an enhanced geothermal system, and its foreshock–aftershock sequence …

Seismicity in cascadia

MG Bostock, NI Christensen, SM Peacock - Lithos, 2019 - Elsevier
We examine spatio-geometric patterns in the density of seismicity within the Cascadia
forearc to gain insight into controls on seismogenesis. Tremor epicenters exhibit the most …

Discovery of an Active Forearc Fault in an Urban Region: Holocene Rupture on the X EOL X ELE K‐Elk Lake Fault, Victoria, British Columbia, Canada

N Harrichhausen, T Finley, KD Morell, C Regalla… - …, 2023 - Wiley Online Library
Subduction forearcs are subject to seismic hazard from upper plate faults that are often
invisible to instrumental monitoring networks. Identifying active faults in forearcs therefore …

Structural and metamorphic history of the Leech River shear zone, Vancouver Island, British Columbia

CE Seyler, JD Kirkpatrick, C Faber, A Licht… - …, 2022 - Wiley Online Library
Abstract The Leech River Shear Zone (LRSZ) on southern Vancouver Island separates the
metasedimentary schists of the Leech River Complex (LRC) from the accreted oceanic …

Three‐dimensional stress model of the collision‐subduction junction East of Taiwan: Implications for the decoupling of the Luzon Arc during subduction

PR Jian, WT Liang, BY Kuo - Journal of Geophysical Research …, 2022 - Wiley Online Library
Abstract Carried by the Philippine Sea Plate converging with the Eurasian Plate, the Luzon
Arc is obliquely colliding with and accreting to the Eurasian continental margin to build the …

Ongoing oroclinal bending in the Cascadia forearc and its relation to concave-outboard plate margin geometry

T Finley, K Morell, L Leonard, C Regalla… - …, 2019 - pubs.geoscienceworld.org
The concave-inboard (concave toward the overriding plate) geometry of most convergent
margins is considered a natural consequence of the depression of the edge of a thin …

Waveform cross‐correlation for differential time measurement: Bias and limitations

M Bachura, T Fischer - Seismological Research Letters, 2019 - pubs.geoscienceworld.org
The waveform cross‐correlation technique is a popular tool for estimating the differential
times of seismic phases in a fast and reliable manner. Differential times are used for a …

Fault-source-based probabilistic seismic hazard and risk analysis for victoria, british columbia, canada: A case of the leech river valley fault and devil's mountain fault …

K Goda, A Sharipov - Sustainability, 2021 - mdpi.com
This study develops a fault-source-based seismic hazard model for the Leech River Valley
Fault (LRVF) and the Devil's Mountain Fault (DMF) in southern Vancouver Island, British …

The 4 January 2020 offshore Pearl River Estuary earthquake sequence in South China: Implications for seismic potential of the NW-striking local faults

S Xia, J Lin, D Zhao, J Cao, C Zhang, X Wang… - Journal of Asian Earth …, 2023 - Elsevier
The complexity of intraplate earthquakes and their challenge to current earthquake models
persist as an important scientific and social problem, both about their causes and the …