This spectrogram shows four hours of USGS Hawaiian Volcano Observatory data streams across six seismic stations at Kilauea’s ...

These volcanoes tend to have gentle slopes and their runnier lava spreads and hardens over a wider area. Mauna Loa in Hawaii is an example of a shield volcano. I’m in Italy visiting a very ...

Deep beneath Hawaii’s volcanic islands, a chemical mystery is rising to the surface. Within flows of molten rock, scientists ...