GVP volcano 331011 · no holder yet
Cobb Segment
Cobb Segment is a submarine fissure vent 2,100 m under the Pacific, last erupted around 1180 BCE.
- Type
- Fissure vent(s) (cluster landform)
- Summit
- 2,100 m below sea level
- Rock
- Basalt / Picro-Basalt
- Setting
- Rift zone, oceanic, under 15 km
- Last eruption
- 1180 BCE
- Largest known
- no eruption with a measured size
- Eruptions
- 1 confirmed in the record
- Where
- 46.88°N 129.33°W · The Pacific
- Region
- Northeast Pacific Rifts Volcanic Province, Eastern Pacific Volcanic Regions
- Record
- Global Volcanism Program, volcano 331011
Not a hazard warning. For safety information follow the World Organization of Volcano Observatories (its directory lists the observatory for each country).