A Systematic Approach to Mapping Regimes of Earthquake‐Induced Static Stress Changes Acting on Magmatic Pathways

Jenkins, Alex; Biggs, Juliet; Rust, Alison; Jara, Rosa

doi:10.1029/2020jb020242

Cited by 1 publication

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References 128 publications

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“…Numerous studies have demonstrated the correlation between positive ΔCFS and increased seismic activity or negative ΔCFS with zones of post‐earthquake quiescence (e.g., Árnadóttir et al., 2004; King et al., 1994; Lin & Stein, 2004; Pope & Mooney, 2020). The CFS changes can also affect magmatic systems by triggering volcanic unrest and eruption (Biggs et al., 2013; Jenkins et al., 2021) and increase crustal permeability by channeling fluids to the seafloor (Bonini, 2019).…”

Section: Future Seismic Hazardsmentioning

confidence: 99%

Geodetic Constraints on Recent Subduction Earthquakes and Future Seismic Hazards in the Southwestern Coast of Mexico

Song

2021

Geophysical Research Letters

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Three major subduction earthquakes occurred on March 20, 2012 (Mw 7.4), February 16, 2018 (Mw 7.2), and June 23, 2020 (Mw 7.4) in the southwestern coast of Mexico, which caused fatalities, casualties, considerable damage, and raised safety concerns about future seismic hazards. We use satellite geodetic observations to invert for the slip distributions of the three events and then investigate their interactions. Coulomb Failure Stress (CFS) induced by their slip both on surrounding thrust and normal faults are calculated. The positive CFS changes, along with the spatial‐temporal seismicity evolution, approximate earthquake recurrence rate and interseismic coupling, collectively indicate an increased possibility of a near‐future rupture around the areas between the 2018 and 2020 events in Oaxaca. Furthermore, there is a lowered chance of shallow coastal or offshore normal earthquakes but an increased chance of inland normal ruptures.

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Section: Future Seismic Hazardsmentioning

confidence: 99%

Geodetic Constraints on Recent Subduction Earthquakes and Future Seismic Hazards in the Southwestern Coast of Mexico

Song

2021

Geophysical Research Letters

View full text Add to dashboard Cite

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A Systematic Approach to Mapping Regimes of Earthquake‐Induced Static Stress Changes Acting on Magmatic Pathways

Abstract: Magmatic intrusions are generally mode I fractures and so preferentially open parallel to the minimum principal stress direction (σ 3), although they may be influenced by structures or weaknesses in the host rock such as faults,

Cited by 1 publication

References 128 publications

Geodetic Constraints on Recent Subduction Earthquakes and Future Seismic Hazards in the Southwestern Coast of Mexico

Geodetic Constraints on Recent Subduction Earthquakes and Future Seismic Hazards in the Southwestern Coast of Mexico

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