https://www.emol.com/noticias/tecnologia/2007/12/17/285581/cientificos-revelan-evidencia-que-ondas-electromagneticas-precederian-a-terremotos.html#:~:text=Un%20grupo%20de%20cient%C3%ADficos%20estadounidenses,que%20se%20produzca%20un%20temblor.&text=SAN%20FRANCISCO 19.8K views21:58
