Popocatepetl is an active volcano, located in the states of ...
Mount St. Helens is an active stratovolcano located in ...
A system of estimating and reporting wind speeds. It is ...
According to the NOAA, 2013 was reported to be the 4th ...
A pyroclastic flow (also known scientifically as a ...
A file format that embeds image registration information ...
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