161 minutes of low-amplitude harmonic tremor were also reported.
The volcano erupted in the early hours of the day.
The eruption began around 2:30 a.m. Monday, hurling glowing rock as far as a mile (1.5 kilometer) from the crater.
One volcano-tectonic earthquake and 34 minutes of low-amplitude tremor were also registered.
Dos jóvenes fueron detenidos intentando acceder al evento tras amenazar a los asistentes en las redes sociales
English14/07/2015
Popocatépetl spews 73 exhalations
The low-intensity exhalations were accompanied by steam, gas and ash.
Also, a low-intensity explosion was registered yesterday at 22:02 hours.
The exhalations were accompanied by emissions of gas, steam and ash.