Australian Ocean Data Network presents paleoseismic study results for the Akatore Fault in Otago, New Zealand. The dataset likely contains trench and GPR data revealing at least three reverse fault ruptures dated between 13,314 B.C. and 1278 A.D., with calculated slip rates and recurrence intervals. The data suggests the fault exhibits strong aperiodicity of earthquake occurrence.
Use Cases
- Modeling seismic hazard risk for nearby Dunedin based on fault slip rates and recurrence intervals.
- Analyzing earthquake aperiodicity patterns based on dated rupture events.
- Studying long-term fault quiescence periods based on evidence of a 125 ka marine terrace displacement.
- Calibrating geological models for Otago faults based on trench and sediment analysis data.
Strengths
- Event chronology spans over 15,000 years, with three ruptures constrained to specific date ranges.
- Provides specific metrics: single-event displacement of 1.6–2.7 m, slip rate of 0.3–2.4 mm/yr, recurrence interval of 670–5110 years.
- Integrates multiple data sources: trench excavations, 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.
- Freshness should be verified; last updated metadata is dated 2026-05-05.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Paleoseismic study involving trench excavations, GPR profiles, and sediment analyses.
- Time Range
- Event dates range from 13,314 B.C. to 1278 A.D.
- Freshness
- Last updated 2026-05-05 02:19:35.982866; freshness should be verified
- Geography
- Akatore Fault, Otago, New Zealand