From Mount St Helens in Washington to the Mauna Loa in Hawaii, these structures have a complicated history of disaster and beauty.

World's largest active volcano Mauna Loa showed telltale warning signs before erupting in 2022. People watch lava from the Mauna Loa volcano Thursday, Dec. 1, 2022, near Hilo, Hawaii.

A magnitude 5.7 earthquake struck the world’s largest active volcano — Mauna Loa on the Big Island of Hawaii — knocking items off shelves in nearby towns but not immediately prompting ...

A magnitude 5.7 earthquake struck the world’s largest active volcano on Friday — Mauna Loa on the Big Island of Hawaii — knocking items off shelves in nearby towns but not immediately ...

HONOLULU — A magnitude 5.7 earthquake struck the world’s largest active volcano — Mauna Loa on the Big Island of Hawaii — Friday, knocking items off shelves in nearby towns but not ...

AP Science Writer WASHINGTON (AP) — Scientists can’t know precisely when a volcano is about to erupt, but they can sometimes pick up telltale warning ...

People watch lava from the Mauna Loa volcano Dec. 1, 2022, near Hilo, Hawaii. AP Photo/Gregory Bull That happened two years ago with the world’s largest active volcano.

WASHINGTON (AP) — Scientists can't know precisely when a volcano is about to erupt, but they can sometimes pick up telltale signs. That happened two years ago with the world's largest active ...

That’s what happened two years ago with the world’s largest active volcano in Hawaii. About two months before Mauna Loa spewed lava, geologists detected small earthquakes nearby and other signals.