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

Geoscience Australia Data 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 occurs, and includes features like river terraces indicating past earthquakes. The work was presented at the 2023 Australian Earthquake Engineering Society Conference.

Use Cases

• Modeling seismic hazard and risk for Lae city based on described fault zone geometry and uplift rates.
• Analyzing earthquake recurrence intervals based on dated river terraces mentioned in the description.
• Mapping active fault traces and their displacements as described for future trenching work.

Strengths

• Focuses on a specific, high-convergence rate (~50 mm/yr) tectonic setting.
• Describes concrete geomorphic indicators 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.

Provenance

Source

Geoscience Australia Data

Collection Method

Likely contains field measurements, geomorphic mapping, and terrace dating from a tectonic study.

Time Range

Holocene (approximately last 11,700 years)

Freshness

Last updated 2026-04-20 01:09:50.911598; freshness should be verified.

Geography

Lae Urban Area and surrounding Ramu-Markham Fault Zone, Papua New Guinea