Lava Flows

Pyroclastic flows are a rare occurrence at Mount Adams, but it is possible for them to occur.

Lava flows are the most likely type of future eruptive event, but they do not pose as much of a hazard as landslides or lahars because they move slowly (a person can out run a lava flow) with relatively predictable flow pathways

The greatest hazard at Mount Adams, in common with many large stratovolcanoes, is from landslides, debris avalanches, and lahars

Eruptions from Mount Adams began about 520 ka, although scattered basaltic eruptions from the surrounding volcanic field began by about 940 ka.

Ice-capped Mount Adams sits astride the Cascade Range crest 50 km (30 mi) north of the Columbia River and 60 km (37 mi) east of Mount St. Helens.

Debris avalanches can be both large and small and pose relative sized threats.

The geological record of activity suggests that the most probable future eruptions would be small outbursts of tephra and lava flows from vents on the summit and upper flanks of the volcano rather than from the surrounding volcanic field.