Ash/Tephra Fall

Overall, Mount Baker has not produced large amounts of tephra fall in the past and probably will not in the future.

The next eruption of Mount Baker may produce lava flows, pyroclastic flows, tephra falls, lahars, and flanks failures.

The eruptive history of the Mount Baker volcanic field is virtually continuous from 1.3 million years ago to the present, and it includes at least 25 discrete eruptive vents and >100 intruded dikes.

Mount Baker's edifice consists mostly of lava flows (as many as 200), and scattered evidence indicates that some of its products were broken up and carried away by glaciers.

Mount Baker is presently not showing signs of renewed magmatic activity, but it will surely become restless again. Future magmatic eruptions at Mount Baker are likely to be preceded by changes at the volcano that could be detected by modern volcano-monitoring techniques.