Dimaté, C., L. Drake, H. Yepez, L. Ocola, H. Rendon, G. Grünthal, and D. Giardini. 1999. “Seismic Hazard Assessment in the Northern Andes (PILOTO Project)”. Annals of Geophysics 42 (6). https://doi.org/10.4401/ag-3787.