Volcanoes can erupt explosively or effusively depending upon the amount of gas in the magma and the viscosity (stickiness) of the magma. View some examples of eruptions featuring:
Below are some volcano science stories I created for YouTube. Santiaguito2012 and Nyiragongo2017 tell the story of field work and science at those volcanoes. My work as a National Geographic Explorer is allowing me to create more videos featuring other volcano scientists. Check back here soon for more postings.
Many volcanologists uses drones to make maps of volcanoes, including craters, which are hard to access. Below are a few flyover maps created using drones and structure-from-motion photogrammetry.