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Smaller eruptions were happening in the fall and summer of 1980 producing pyroclastic flows and windblown ash. 1980-1986
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On march 16, 1980 Mount Saint Helens had its first signs of eruptions such as shallow earthquakes and periodic bursts of ash and steam.
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Mount saint Helens gets its fist signs of eruptions.
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As many as 20 earthquakes were in an hour were recorded at Mount Saint Helen's.
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As many as 20 earthquakes were recorded in an hour.
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It had its first eruption in a long time, but it wasn't that big.
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12 more eruptions took place
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93 explosions took place in one day.
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plumes of steam and ash reached 20,000 feet.
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a series of explosions lasted for hours it was the longest yet.
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It went from about 1 eruption per hour to 1 per day.
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The small eruptions are back on to about 1 per hour.
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8:32 am on may 18, 1980 the big explosion happens its northern blue and summit slid away in a big landslide it had powerful eruptions and over 50 people died.