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Mayor Island

0
Alert level
Alert level: 0 ACC: Green
State The overall status of the volcano in relation to volcanic activity.
No unrest
Volcanic activity The specific level of activity currently observed.
No volcanic unrest.
Most Likely Hazards The types of hazards and where they could affect people and property at this alert level.
Volcanic environment hazards.

An eruption may occur at any level, and levels may not move in sequence as activity can change rapidly.

All volcanoes
Cone Cone-shaped volcano, often with a summit crater.
Background map data copyright Toitū Te Whenua CC BY 4.0.

Overview

Lying 50 km north of Tauranga, Mayor Island is the smallest caldera volcano in New Zealand.

Mayor Island (Tūhua) is the emergent summit of a caldera volcano roughly 750 m high and 15 km across. The island is dominated by the 3 km wide caldera collapse crater and contains numerous vents. At least 52 eruptions have been recorded from the island over the last 130,000 years.

Most Recent Eruption

When
about 6,300 years ago
Where
Mayor Island
Effects
Large amounts of ash fell on the nearby North Island, and large pyroclastic flows entered the sea, almost certainly generating tsunami.