Blue Lake Crater
About Blue Lake Crater
Blue Lake Crater is a series of at least three overlapping explosion craters along a NE trend slightly east of the crest of the Cascade Range in the state of Oregon. Explosions through pre-existing bedrock about 1,300 years ago deposited basaltic bombs and cinders, and spread tephra to the E and SE during perhaps the youngest eruption in the Santiam and McKenzie Passes region. The eruption created an elongated, steep-walled crater with a low rim that rises about 50 m above adjacent topography. The crater is now filled by the 300 x 800 m Blue Lake, immediately west of the glacial moraine dammed Suttle Lake. A chain of spatter cones, 6 km to the SSW and about 4 km NE of Mount Washington, is aligned with Blue Lake Crater and has ejecta that are petrographically similar and may have been erupted at the same time.
Eruption reports
Reports from GDACS and NASA EONET linked to this volcano.
No eruption reports in our records yet. New reports appear here automatically.
Earthquakes nearby, 30 days
Within about 50 km. Swarms of small quakes can sometimes accompany volcanic unrest.
No earthquakes recorded nearby in the last 30 days.