The first , which registered 8.2 on the Richter scale , occurred on September 7 and caused close to 100 deaths , mostly in Oaxaca and Chiapas in southwestern Mexico .
Nayrïri ukax 8.2 ( grados en la escala de Richer ) ukha ch ’ amanïnwa 7 uru sata qallta phaxsit utjawayi , walja jiwataw utjawayi juk ’ ampins Oaxaca ukat Chiapas .