Figure 1. Tectonic setting of the June 24, 2026, doublet. The magnitude 7.2 and 7.5 earthquakes (red circles) sit where the northeast-trending Boconó Fault meets the east–west San Sebastián Fault, the central link of the first-order Boconó–San Sebastián–El Pilar dextral system (which moves about 1 centimeter per year). Caribbean–South America plate motion is about 18 ± 2 millimeters per year. Fault families and stress field after Audemard et al. (2006); epicenters and mechanisms from USGS NEIC; fault traces schematic. Credit: Chaves et al., 2026, CC BY-NC-ND 4.0

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Figure 1. Tectonic setting of the June 24, 2026, doublet. The magnitude 7.2 and 7.5 earthquakes (red circles) sit where the northeast-trending Boconó Fault meets the east–west San Sebastián Fault, the central link of the first-order Boconó–San Sebastián–El Pilar dextral system (which moves about 1 centimeter per year). Caribbean–South America plate motion is about 18 ± 2 millimeters per year. Fault families and stress field after Audemard et al. (2006); epicenters and mechanisms from USGS NEIC; fault traces schematic. Credit: Chaves et al., 2026, CC BY-NC-ND 4.0

Figure 1. Tectonic setting of the June 24, 2026, doublet. The magnitude 7.2 and 7.5 earthquakes (red circles) sit where the northeast-trending Boconó Fault meets the east–west San Sebastián Fault, the central link of the first-order Boconó–San Sebastián–El Pilar dextral system (which moves about 1 centimeter per year). Caribbean–South America plate motion is about 18 ± 2 millimeters per year. Fault families and stress field after Audemard et al. (2006); epicenters and mechanisms from USGS NEIC; fault traces schematic. Credit: Chaves et al., 2026, CC BY-NC-ND 4.0

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