September 8, 2022 — Ta‘ū Island Coastal Tuff Cone
Detailed Description
On the northwest coast of Ta‘ū Island (near Faleāsao village), half of a tuff cone, which is likely thousands of years old, is visible. Ocean waves have eroded away the other half of the tuff cone, which formed when hot magma interacted with either shallow groundwater or sea water. USGS image by J. Chang.
Sources/Usage
Public Domain.