When will the Axial Seamount volcano erupt?

According to the latest data, the Axial Seamount volcano is not expected to erupt until mid-to-late 2026, as the rate of inflation and seismic activity around the volcano has slowed significantly since July 2025.

How big will the Axial Seamount eruption be?

The upcoming eruption of the Axial Seamount is expected to spew out over a billion cubic feet of very fluid lava, weighing millions of tons. However, the exact size of the eruption is still uncertain, as the researchers note it will likely be similar to the volcano's previous eruptions.

What impact will the Axial Seamount eruption have on the Pacific Northwest?

Fortunately, the impending eruption of the Axial Seamount, located 300 miles off the coast, is not expected to pose any threat to human life in Washington, Oregon, or California. The eruption is too deep and too far from shore for people to even notice when it occurs, and it is unlikely to have any significant impact on seismic activity on land.

Home / Disasters and Accidents / Axial Seamount Inflation Slows, Delaying Predicted Eruption Timeline

Axial Seamount Inflation Slows, Delaying Predicted Eruption Timeline

13 Nov

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Summary

Magnitude 4.2 quake hits near Oregon coast, 200 miles from Axial Seamount volcano
Volcano inflation rate slower than expected, pushing eruption prediction to late 2026
Seismic activity around volcano has decreased since July 2025

Axial Seamount Inflation Slows, Delaying Predicted Eruption Timeline

On November 11, 2025, a magnitude 4.2 earthquake struck the Oregon Coast, just 185 miles from the coastal town of Barview. The quake's epicenter was also roughly 200 miles from the Axial Seamount, a highly active Pacific Northwest volcano that last erupted in 2015.

While this was the third major seismic event in the area in two weeks, researchers say the tremor is not the tipping point that will set off the volcano. According to geophysics expert Bill Chadwick from Oregon State University, the major quakes are tied to the nearby Blanco Fracture Zone, where tectonic plates slide past each other, rather than directly to the Axial Seamount.