Over the past day, the monitoring systems for the Popocatépetl volcano observed 83 exhalations, which consisted of water vapor, volcanic gases, and ash. Two minor explosions were also detected yesterday at 11:37 am and 12:19 pm (local time). In addition, there were 258 minutes of tremor and a 1.9 magnitude volcanotectonic earthquake at 3:01 pm yesterday.
Explosions in Popocatépetl and other active volcanoes are accompanied by seismic and sound signals. These are detected using pressure sensors or microphones and can be heard at varying intensities depending on atmospheric and crater conditions . . .
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