So, I've had requests on the blog to help to do some defining of volcanologic terms on the blog, so I thought I'd try a new column called Eruptions Word of the Day. I'm not sure how often it will run, ...

Lassen Peak in California, seen in October 2008. Image: Erik Klemetti So, I'm off to the American Geophysical Union Fall Meeting in San Francisco meeting tomorrow. This year, I will be presenting on ...

It’s true that lava is hot enough to burn up some of our trash. When Kilauea erupted on the Big Island of Hawaii in 2018, the lava flows were hotter than 2,000 degrees Fahrenheit (1,100 Celsius). That ...

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. There are many different kinds of volcanoes, ranging from ...

Click on the image to see a larger version. Dissected with lava flow and pyroclastic deposit layering along with magmatic dikes exposed. The original flow features are rarely preserved and the volcano ...