A schematic cross-section from north to south through Kilauea Volcano, showing the structure of the volcano and the mobile south flank. The June 17 dike intruded into the East Rift Zone and ...

Through monitoring El Misti, the OVS noted a slight increase in fumarole activity, release of volcanic gasses, and variations in temperature. Above is a schematic cross section of El Misti taken ...

That's the general process behind how volcanic lightning works. Combine these things together: different mass (and charge) ions moving at different average speeds with different cross sections in ...

Cross-section view across Bermuda Pedestal showing relationship between limestone & volcanic rocks As the original volcanic peaks of Bermuda were eroded below sea level by wave action, coral reefs ...

Some volcanoes have a collapsed central section called a caldera that can act like a plug. As the magma flows elsewhere, the caldera may sink until it cracks and the magma has a new path to the ...

It looks like just another hill in Sussex County, but you wouldn’t have wanted to have been standing there 420 million years ago. That’s about when the Beemerville Volcano erupted in Wantage ...

“Erosion and weathering presents a cross-section of the caldera that gives geologists a window into the anatomy of a volcano in exquisite detail.” ...

The U.S. Geological Survey’s Hawaiian Volcano Observatory said the eruption began just after 2 a.m. local time (1200 GMT) in the southwestern section of the caldera. “At 4:30 a.m., lava ...