Mount Adams and Mount Rainier. If they’re right, the magma chamber would be one of the biggest ever discovered, on a par with the pool of molten rock that underlies the Yellowstone basin.

But Mount St. Helens is anomaly of the arc, sitting significantly west of the north-south line along which Mount Adams ... essentially ruled out a large magma chamber directly underneath the ...

Researchers say the deeper chamber may be supplying magma to Mount St. Helens, Mount Adams, and a set of dormant volcanoes called the Indian Heaven volcanic field based on its location between all ...

The new magma chamber is bigger and further below ... beneath Mount St Helens also think the deep chamber feeds nearby Mount Adams, which has its own chamber underneath it. The eruption of ...

It looks like it shares a magma chamber with a whole field of local ... of inactive and dormant volcanoes in the region like Mount Adams and the rest of the Indian Heaven volcanic field.

The three volcanoes are along the edges of the Southern Washington Cascades Conductor, in a rough triangle with Mount St. Helens to the south, Rainier to the north and Adams to the east.

Rather than sit atop a boiling chamber of magma, the mountain rests on a cold ... Hansen said Mount St. Helens may siphon molten rock from Mount Adams, a volcano located squarely on the ...

Researchers say the deeper chamber may be supplying magma to Mount St. Helens, Mount Adams, and a set of dormant volcanoes called the Indian Heaven volcanic field based on its location between all ...