The New Zealand Volcano Alert Level System - Its Performance in Recent Eruptive Activity

A revised volcanic alert system was introduced in New Zealand after a major episode of volcanic eruption occurred from Crater Lake, Mt. Ruapehu. The alert system is based on six levels and has two separate schemes that differentiate clearly between reawakening activity at a dormant volcano and frequently active volcanoes. This system is not intended to be predictive, but provides an indication of status of eruption. The revised system was used during 1995 and 1996 eruption episodes at Ruapehu and also during eruptions that occurred at White Island from 1998 to 2001.

• Supplemental Notes:
  • These proceedings contain the abstract only of this presentation.
• Corporate Authors:

  Federal Coordinator, Meteorological Services & Support Research

  8455 Colesville Road, Suite 1500
  Silver Spring, MD  United States  20901
• Authors:
  • Scott, Bradley
• Conference:
  • 2nd International Conference on Volcanic Ash and Aviation Safety
  • Location: Alexandria, Virginia
  • Date: 2004-6-21 to 2004-6-24
• Publication Date: 2004-11

Language

• English

Media Info

• Media Type: Print
• Pagination: 1p
• Monograph Title: Proceedings of the 2nd International Conference on Volcanic Ash and Aviation Safety, June 21-24, 2004, Alexandria, Virginia

Subject/Index Terms

• TRT Terms: Aviation safety; Hazard evaluation; Performance; Volcanic eruptions; Volcanoes
• Identifier Terms: Mount Ruapehu; White Island
• Uncontrolled Terms: Active volcanoes; Dormant volcanoes; Reawakening volcanoes
• Geographic Terms: New Zealand
• Subject Areas: Aviation; Safety and Human Factors;

Filing Info

• Accession Number: 01000555
• Record Type: Publication
• Files: TRIS
• Created Date: May 27 2005 3:34PM