Cobb Segment, Pacific Ocean

Submarine volcano · -2,100 m (-6,890 ft) · Pacific-NE

Cobb Segment is a submarine volcano in the Pacific Ocean, -2,100 m (-6,890 ft) high. Its last known eruption: 1964 or later. NOAA records no significant eruption here.

Cobb Segment on the map

Cobb Segment and the volcanoes within 300 km, colored by when each last erupted.

Since 1964
1900 to 1963
1800s
AD 1 to 1799
Before AD 1, or undated

Open the live map with volcanic ash advisories

The volcano

Type: Submarine volcano
Elevation: -2,100 m (-6,890 ft)
Country: Pacific Ocean
Region: Pacific-NE
Summit: 46.880° N, 129.330° W
Last known eruption: 1964 or later
Holocene activity known from: Historical
Smithsonian volcano number: 331011

Significant eruptions

NOAA records eruptions that killed, did damage, were very large, or set off a tsunami or earthquake.

None on record.

Around it

The volcanoes within 300 km.

Earthquakes near Cobb Segment Volcanic ash advisories on the live map

Sources

Volcanoes and significant eruptions from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. Volcano numbers are the Smithsonian Institution’s Global Volcanism Program’s.