In 2002 Earthquake, which had been low, increased, and inflation suddenly started, and the caldera walls started to move apart at per year.

Here, in the open, they had a clear view of the sky and the caldera walls.

Downhill, along the curve of the caldera wall, there was a row of smoking holes.

He took them eastward, along the caldera wall.

But Ann was alive, up there climbing the caldera walls of Olympus.

They would only have to climb up out of it again, she said easily, and the main caldera wall was already tall enough.

An hour's hike, and they reach the caldera wall.

It is a gigantic brown plain, ringed by the round cliffs of the caldera wall.

His party was the first to descend the 800-foot caldera wall to reach the lake's shore.

The caldera wall was eventually breached, leading to a catastrophic flood as the lake drained.