Figure 1

Epicenter of the 2012 earthquakes, volcanoes in states of unrest, and location of the seismic stations used to obtain the waveforms for calculating the dynamic stress of the earthquakes in Central America (more information in the Supplementary Material). The dashed line corresponds to the Meso-American trench along which the Cocos plate is subducting below the Caribbean plate. Grey circles indicate the seismic stations available for the three earthquakes in 2012 (August 27, El Salvador; September 5, Costa Rica; November 7, Guatemala). The yellow circles, black diamonds, and blue squares indicate the seismic stations that generated information for the El Salvador, Costa Rica and Guatemala earthquakes, respectively. The orange/white circles are the focal mechanism of each earthquake from Global CMT. The volcanoes analyzed in this study are: 1. Santa María, 2. Fuego, 3. Pacaya, 4. San Miguel, 5. San Cristóbal, 6. Telica, 7. Cerro Negro, 8. Momotombo, 9. Apoyeque, 10. Masaya, 11. Concepción, 12. Rincón de la Vieja, 13. Miravalles, 14. Tenorio, 15. Arenal, 16. Platanar, 17. Poás, 18. Irazú and 19. Turrialba. Figure created in Generic Mapping Tools (GMT; https://www.generic-mapping-tools.org/).