Significant stress variations in the West Pacific subduction zone derived from the summations of moment tensors of seismic events

Key Points

• Stress variations derived from the summation of moment tensors indicate significant seismic activity in the region.
• Findings show variations as high as 3.5 MPa based on seismic event assessments over the last decade.
• Analysis of moment tensor data highlights the complexity of seismic behavior in subduction zones.
• These findings imply a need for improved models to predict seismic risk in the West Pacific region.