At least three reverse fault ruptures on the Akatore Fault, Otago, New Zealand, constrained between 13,314 B.C. and 1278 A.D. The dataset presents results from a paleoseismic study including trenching, GPR profiles, and sediment analyses, contributed by Geoscience Australia Data. It suggests the fault ended a minimum 110,000-year period of quiescence and exhibits strong aperiodicity in earthquake occurrence.
Use Cases
- Modeling fault slip rates based on the estimated 0.3–2.4 mm/yr rate
- Analyzing earthquake recurrence intervals based on the 670–5110 year range
- Assessing seismic hazard for Dunedin based on the fault's recent activity period
- Studying aperiodicity in earthquake occurrence based on the described long quiescence and clustered events
Strengths
- Event timing is constrained with specific date ranges for three paleo-earthquakes
- Provides quantitative displacement estimates of 1.6–2.7 meters per event
- Analysis integrates multiple methods: trenching, GPR profiles, and sediment analyses
Limitations
- Column-level documentation is absent; field semantics must be inferred after download
- Row count is unknown, which may limit suitability assessment
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Paleoseismic study involving trench excavation, ground-penetrating radar (GPR) profiles, and sediment analysis
- Time Range
- Events constrained between 13,314 B.C. and 1278 A.D.
- Freshness
- Last updated 2026-03-25 17:21:11.403245; freshness should be verified
- Geography
- Akatore Fault, Otago, New Zealand