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CHAPTER 14. VOLCANO <br />14-2 <br />Table 14-1. Past Eruptions in Washington <br />Volcano Number of Eruptions Type of Eruptions <br />Mount Adams 3 in the last 10,000 years, most recent between <br />1,000 and 2,000 years ago Andesite lava <br />Mount Baker 5 eruptions in past 10,000 years; mudflows have <br />been more common (8 in same time period) <br />Pyroclastic flows, mudflows, ash <br />fall in 1843. <br />Glacier Peak 8 eruptions in last 13,000 years Pyroclastic flows and lahars <br />Mount Rainier 14 eruptions in last 9000 years; also 4 large <br />mudflows Pyroclastic flows and lahars <br />Mount St Helens 19 eruptions in last 13,000 years Pyroclastic flows, mudflows, lava, <br />and ash fall <br /> <br /> <br />Figure 14-1. Past Eruptions in the Cascade Range <br />Four major Cascade volcanoes are relatively close to the Kittitas County planning area: <br />– Glacier Peak approximately 80 miles north-northwest of Ellensburg <br />– Mount Rainier approximately 58 miles west of Ellensburg