1975 Bougainville Earthquake Effects Report with Damage and Aftershock Analysis
Updated 3d ago
2filesPDF
Available on 1 platform
Sign in to view source links and access this dataset
Description
A magnitude 7.9 earthquake on 20 July 1975 caused at least $300,000 (Australian) in damage in the southern Bougainville region. The event, documented by the Australian Ocean Data Network, triggered a two-metre tsunami, landslides, liquefaction, and damage to villages and mining infrastructure. Aftershocks occurred in a roughly elliptical area of 12,500 square kilometres off the southwestern coast of Bougainville.
Use Cases
Modeling tsunami generation and impact based on the reported two-metre wave amplitude.
Analyzing patterns of geological hazards like landslides and liquefaction triggered by major seismic events.
Studying aftershock distribution and fault mechanics based on the described 12,500 square kilometre elliptical zone.
Assessing economic and infrastructural damage to coastal communities and mining operations from historical earthquakes.
Strengths
Report details a specific, high-magnitude (MS7.9) seismic event with a precise date and location.
Includes quantified damage estimates ($300,000 Australian) and physical measurements like tsunami amplitude (two metres) and aftershock zone area (12,500 sq km).