Tsunami Risk Scenarios for the Tonga-Kermadec Subduction Zone from Expert Workshop

A 2018 UNESCO/IOC workshop report synthesizing expert-identified seismic scenarios for the Tonga-Kermadec trench. Fourteen experts from four countries ranked potential worst-case tsunami sources by probability and discussed gaps in scientific knowledge and regional instrumentation. The report presents these findings and recommendations on tsunami readiness for at-risk populations.

Use Cases

• Prioritizing tsunami hazard scenarios based on expert-ranked probability levels mentioned in the description
• Identifying gaps in seismic and tsunami monitoring instrumentation for the Tonga-Kermadec region as discussed by workshop participants
• Informing coastal readiness and warning system planning based on the assessment of at-risk population preparedness

Strengths

• Based on a 2018 workshop of fourteen international experts from four countries
• Focuses on a specific, high-risk subduction zone (Tonga-Kermadec) with identified seismic scenarios

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download
• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

Australian Ocean Data Network, via data_gov_au

Collection Method

Synthesis of findings from a UNESCO/IOC-sponsored expert workshop

Time Range

Workshop held in November 2018

Freshness

Last updated 2026-06-05 07:24:12.974048; freshness should be verified

Geography

Tonga-Kermadec Subduction Zone and nearby coastlines in the Southwest Pacific