Starting at 19:28 h local time yesterday, volcanic tremor of high amplitude accompanied by strong steam and ash emissions created an eruption column rising 3 km (about 10,000 ft) above Popocatépetl volcano.
The eruption plume drifted ESE and dropped ash on several villages, including San Juan Tianguismanalco, San Pedro Benito Juárez and the City of Puebla.
The restless Mexican volcano has been producing steam-and-ash plumes intermittently over the past year, but this eruption also hurled large incandescent blocks down the slopes of the volcano.
All of this is based on webcam images from the 4 cameras pointed at Popocatépetl. http://www.wired.com/wiredscience/2013/ ... ocatepetl/
This is “a significant increase in activity,” says http://www.volcanodiscovery.com/popocatepetl/news.html
Volcan Popocatepetl (the Aztec word for ‘smoking mountain’) is located about 50 miles southeast of Mexico City, home to approximately 21 million people.
In 2000, thousands of residents surrounding the nearly 18,000-foot mountain were forced to evacuate.
Popocatépetl, North America’s second highest volcano, most recently erupted in November and June of 2011.
According to Smithsonian http://www.volcano.si.edu/world/volcano ... m=1401-09= , the last major eruption of Popocatepetl, which including a pyroclastic flow, occurred around 800 AD.
A pyroclastic flow is a combination of lethal hot gas and ash, similar to what happened in Pompeii, Italy.
http://www.wired.com/wiredscience/2013/ ... ocatepetl/
http://www.accuweather.com/en/weather-n ... mexico/641
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