CT scans help detect ancient earthquakes in Hamilton Basin
Phys.org
February 19, 2026
AI-Generated Deep Dive Summary
Scientists have made a groundbreaking discovery by using CT scan technology to uncover ancient earthquakes in the Hamilton Basin. This innovative approach revealed that hidden geological faults in Hamilton and the Hauraki district are capable of generating moderate to large earthquakes. The study found evidence of seismic activity dating back 15,700 years, highlighting the potential for future earthquakes in these areas.
The use of medical imaging technology, traditionally used for human diagnostics, marks a world-first application in geological research. By employing CT scans, scientists were able to detect previously unknown faults and analyze their earthquake-generating potential. This method provided more detailed insights compared to conventional techniques, allowing researchers to map the structural geology beneath the Earth's surface with greater precision.
The findings have significant implications for understanding earthquake risks in New Zealand. The study suggests that these faults have been active in recent geological history, meaning they could potentially cause damaging earthquakes in the future. This information is critical for urban planning and disaster preparedness in regions like Hamilton and Hauraki, where populations are densely settled.
For readers interested in science, this breakthrough underscores the importance of innovative technologies in advancing our understanding of natural phenomena. By applying medical imaging to geology, researchers have opened new avenues for studying fault systems and assessing seismic hazards. This approach not only enhances our ability to predict and prepare for earthquakes but also demonstrates the versatility of cutting-edge technology across disciplines.
In summary, this study represents a major step forward in earthquake research, offering valuable insights into the geological history of New Zealand and its potential future seismic activity. The use of CT scans in geology highlights the importance of collaboration between different scientific fields to tackle complex challenges like earthquake prediction and risk management.
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Originally published on Phys.org on 2/19/2026