New Zealand · Stratovolcano
James Healy Seamount
Healy
- Type
- Stratovolcano
- Elevation
- 980m (submarine)
- Last eruption
- 1360
- Type
- Stratovolcano
- Country
- New Zealand
- Region
- Tonga & Kermadec / Southern Kermadec Volcanic Arc
- Elevation
- 980m (submarine)
- Coordinates
- -35.004, 178.973
- Last eruption
- 1360
- Tectonic setting
- Subduction zone / Oceanic crust (< 15 km)
- Landform
- Composite
- Major rock type
- Dacite
Geological summary
Healy submarine volcano lies along the South Kermadec Ridge and consists of an elongated edifice with a 3 x 4 km wide caldera at the NE end whose rim reaches to 1,150 m below sea level.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
James Healy Seamount is a submarine volcano located among the South Kermadec Ridge Seamounts south of New Zealand's Kermadec Islands. It consists of a volcanic cone that reaches a depth of 1,150 metres (3,770 ft) below sea level, two 2–2.5-kilometre-wide (1.2–1.6 mi) and 1.3-kilometre-wide (0.81 mi) calderas, and a parasitic cone that reaches a depth of 950 metres (3,120 ft) below sea level. The flanks of the volcano are covered with pumice and volcanic rocks, and hydrothermal venting occurs inside the caldera.
Wikipedia · CC BY-SA · Read full article →
Eruption history
1 recordedGlossaryRecord summary
- Confirmed eruptions
- 1
- Uncertain eruptions
- 0
- Span of confirmed record
- 1360 (±75 yrs) – 1360
- Largest confirmed eruption
- No VEI recorded
- Confirmed eruptions since 1900
- 0
Detailed timeline
- 1360 (±75 yrs)VEI ?Geological estimate1360 – end unknownHealy caldera
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.