Ranger Adam Dean from the Valles Caldera National Preserve speaks to Kiwanis at their Jan. 20 meeting. Courtesy photo BY BROOKE DAVISKiwanis Club Jan. 20, the Kiwanis Club of Los Alamos was ...

Aerial view of Crater Lake in Oregon, a collapse caldera formed by one of the largest volcanic eruptions in the past 8,000 years. A detailed survey of the volcanic deposits found offshore Japan ...

Inside the McDermitt Caldera, a 16‑million‑year‑old volcanic crater straddling the Oregon–Nevada border, geologists have ...

Buried beneath the high desert on the Oregon–Nevada line, an ancient volcanic scar is suddenly being talked about in the same ...

Italy’s Campi Flegrei is nothing like your average volcano. It’s not a mountain, but an eight-mile-wide, bowl-shaped caldera centered on the Gulf of Pozzuoli, just outside Naples. The unsubmerged ...