Methane gas bubbles on the south wall of Astoria Canyon @NOAAPMEL

Methane gas bubbles on the south wall of Astoria Canyon @NOAAPMEL

Uploaded August 2019 | Updated September 2026, 9 hours ago

ROV Hercules video of methane gas bubbles near the south wall of Astoria Canyon.

More information about this research available here: pmel.noaa.gov/eoi/Cascadia-margin.html

Methane gas bubbles on the south wall of Astoria Canyon

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Methane gas bubbles on the south wall of Astoria Canyon