[1] Ctr Invest Cient & Educ Super Ensenada, Dept Sismol, Carretera Tijuana-Ensenada 3918, Ensenada 22860, Baja California, Mexico
[2] CONAHCYT, Direcc Adjunta Desarrollo Cientif, Ave Insurgentes 1582,Col Credito Constructor, Mexico City 03940, Mexico
[3] Univ Nacl Autonoma Mexico, Dept Volcanol, Inst Geofis, Mexico City 04510, Mexico
[4] CA Sismol & Volcanol Occidente SisVOc, Puerto Vallarta 48280, Mexico
[5] Ctr Invest Cient & Educ Super Ensenada, Dept Sismol, Carretera Tijuana Ensenada 3918, Ensenada 22860, Baja California, Mexico