Canada · Fissure vent
Cobb Seamount
Cobb Segment
- Type
- Fissure vent
- Elevation
- 2100m (submarine)
- Last eruption
- -1180
- Type
- Fissure vent
- Country
- Canada
- Region
- Eastern Pacific / Northeast Pacific Rifts Volcanic Province
- Elevation
- 2100m (submarine)
- Coordinates
- 46.880, -129.330
- Last eruption
- -1180
- Tectonic setting
- Rift zone / Oceanic crust (< 15 km)
- Landform
- Cluster
- Major rock type
- Basalt / Picro-basalt
Geological summary
The Cobb Segment is in the northern part of the Juan de Fuca Ridge, south of the Endeavour Ridge segment.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Cobb Seamount is a seamount and guyot located 500 km (310 mi) west of Grays Harbor, Washington, United States. Cobb Seamount is one of the seamounts in the Cobb–Eickelberg Seamount chain, a chain of underwater volcanoes created by the Cobb hotspot that terminates near the coast of Alaska. It lies just west of the Cascadia subduction zone, and was discovered in August 1950 by the U.S. Fish and Wildlife Service fisheries research vessel R/V John N. Cobb . By 1967, over 927 km (576 mi) of soundings and dozens of samples from the seamount had been collected.
Wikipedia · CC BY-SA · Read full article →
Eruption history
1 recordedGlossaryRecord summary
- Confirmed eruptions
- 1
- Uncertain eruptions
- 0
- Span of confirmed record
- 1180 BCE – 1180 BCE
- Largest confirmed eruption
- No VEI recorded
- Confirmed eruptions since 1900
- 0
Detailed timeline
- 1180 BCEVEI ?Geological estimate1180 BCE – end unknown
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.