Mount St. Helens

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Scientists have lowered the volcano's alert level, saying they no longer think an eruption is imminent. But they stress one could be days, weeks or months away.

The U.S. Geological Survey says earthquake activity dropped off after yesterday's steam burst and remains relatively low today. It says some steam blasts and occasional eruptions of volcanic rock could go on for months.

Thousands of tiny earthquakes have been shaking the mountain in western Washington State since last month, the most seismic activity at the peak since the mammoth 1980 eruption that killed 57.