Tectonic Geomorphology and Holocene Uplift Rates for Lae, Papua New Guinea

Australian Ocean Data Network presents a dataset on the tectonic geomorphology and Holocene uplift rates of the Lae Urban Area in Papua New Guinea. The data relates to the Ramu-Markham Fault Zone, where a convergence rate of ~50 mm/yr is accommodated, and includes analysis of river terraces indicating past earthquake events. This work was presented at the 2023 Australian Earthquake Engineering Society Conference.

Use Cases

• Model seismic hazard and risk for Lae city based on fault zone geometry and convergence rates.
• Analyze earthquake recurrence intervals based on dated river terrace sequences.
• Map active fault traces and assess single event displacements for tectonic studies.

Strengths

• Focuses on a specific high-convergence rate region (~50 mm/yr).
• Analysis includes geomorphic features like river terraces with typical riser heights of 3 m.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely contains field measurements and geomorphic analysis of river terraces and fault structures.

Time Range

Holocene

Freshness

Last updated 2026-06-27 18:59:38.703892; freshness should be verified.

Geography

Lae Urban Area, Papua New Guinea