Figure 2. a) Historical earthquakes and background instrumental seismicity in the eastern Mindanao region. Earthquakes with magnitudes greater than 5 and depths less than 30 kilometers are displayed. Additionally, the 2023 Davao de Oro earthquake sequence is shown. b) Coulomb stress changes resulting from the 2023 earthquake sequence, using optimally oriented strike-slip faults as receivers. The azimuths and plunges of the maximum (S1) and minimum principal stresses (S3) are 300° and 15°, and 30° and 3°, respectively. Default surface stress values of 100 bars for S1 and 0 bar for S3 were used. Data sources: Historical earthquakes from Bautista and Oike (2000), bathymetry from GEBCO, and stress data from the World Stress Map (Heidbach et al., 2016). Credit: Llamas et al., 2024, CC BY-NC-ND 4.0

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Figure 2. a) Historical earthquakes and background instrumental seismicity in the eastern Mindanao region. Earthquakes with magnitudes greater than 5 and depths less than 30 kilometers are displayed. Additionally, the 2023 Davao de Oro earthquake sequence is shown. b) Coulomb stress changes resulting from the 2023 earthquake sequence, using optimally oriented strike-slip faults as receivers. The azimuths and plunges of the maximum (S1) and minimum principal stresses (S3) are 300° and 15°, and 30° and 3°, respectively. Default surface stress values of 100 bars for S1 and 0 bar for S3 were used. Data sources: Historical earthquakes from Bautista and Oike (2000), bathymetry from GEBCO, and stress data from the World Stress Map (Heidbach et al., 2016). Credit: Llamas et al., 2024, CC BY-NC-ND 4.0

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