What Is 2019 eruption of White Island

Overview

White Island, known as Whakaari in Māori, is an active stratovolcano located in the Bay of Plenty, 48 kilometers off the coast of New Zealand’s North Island. On December 9, 2019, the volcano erupted unexpectedly at 2:11 PM local time, sending a plume of ash and steam over 3.7 kilometers into the atmosphere.

The eruption caught dozens of tourists and guides off guard, many of whom were on organized tours to the island, a popular destination due to its dramatic geothermal activity. Rescue operations were immediately launched, but the extreme conditions and ongoing volcanic hazards delayed recovery efforts and medical evacuations.

• 22 people died in the eruption, including 17 international tourists from countries such as Australia, Malaysia, and the United States.
• 25 survivors sustained serious injuries, with over half suffering second- to third-degree burns across more than 30% of their bodies.
• The eruption lasted approximately two minutes, but released energy equivalent to several hundred tons of TNT, according to GeoNet scientists.
• GeoNet had raised the Volcanic Alert Level to Level 2 on November 30, 2019, indicating moderate volcanic unrest, but no eruption was imminent.
• Whakaari/White Island has been in a state of continuous low-level activity since 1976, with over 50 recorded eruptions by 2019.

How It Works

Understanding the eruption requires knowledge of volcanic monitoring systems, risk assessment protocols, and the geology of the region. The following terms explain key aspects of how such events are studied and managed.

• Volcanic Alert Level (VAL): A 0–5 scale used by New Zealand’s GeoNet to communicate volcanic activity. Level 2 indicates moderate unrest, which was in effect before the 2019 eruption.
• Phreatic Eruption: A steam-driven explosion caused by groundwater interacting with hot rock or magma. The 2019 event was primarily phreatic, meaning it occurred without new magma reaching the surface.
• GeoNet: New Zealand’s geological hazard monitoring system, operated by GNS Science. It detected increased gas emissions and ground shaking in the weeks prior to the eruption.
• Whakaari Management Trust: The private group that owns the island. They were responsible for tour operations and safety decisions, despite volcanic risks.
• Rescue Limitations: Harsh conditions prevented helicopters from landing immediately; the first successful medical evacuation occurred over an hour after the eruption.
• Long-term Health Impact: Survivors faced prolonged hospitalization, with some undergoing dozens of skin graft surgeries due to extensive thermal burns.

Comparison at a Glance

Comparing the 2019 White Island eruption to other recent volcanic events highlights differences in lethality, monitoring, and public access.

The White Island eruption stands out because of the high proportion of foreign tourists and the ongoing debate about allowing public access to active volcanoes. Unlike in Japan or Guatemala, where authorities enforced stricter access controls, New Zealand allowed commercial tours despite known risks, raising legal and ethical questions.

Why It Matters

The 2019 White Island eruption sparked national and international conversations about risk management, tourism safety, and the responsibilities of private landowners operating hazardous sites. It also led to changes in how volcanic risks are communicated and regulated in New Zealand.

• Legal investigations were launched into the tour operators and the Whakaari Management Trust, with charges filed against several parties in 2022.
• New Zealand updated its volcanic tourism guidelines, requiring stricter safety assessments before allowing visitors to active sites.
• The tragedy highlighted gaps in emergency response protocols for remote volcanic areas, prompting investment in faster evacuation systems.
• Survivors and families of victims filed civil lawsuits seeking compensation, emphasizing the human cost of inadequate risk communication.
• The event underscored the ethical dilemma of promoting dangerous natural attractions for economic gain, especially on privately owned land.
• Internationally, it served as a case study in disaster preparedness, influencing volcano tourism policies in Indonesia and Iceland.

The 2019 White Island eruption remains a somber reminder of nature’s unpredictability and the importance of balancing scientific warnings with commercial interests. Memorials have since been established, and ongoing monitoring continues to inform public safety decisions.