On 20 July 1975, a major earthquake (MS7.9) shook the northern Solomon Islands. The dataset likely contains information on damage, tsunami effects, aftershock patterns, and fault-plane analysis for the event. It is provided by the Australian Ocean Data Network.
Use Cases
- Modeling tsunami risk based on the reported two-metre maximum amplitude.
- Analyzing aftershock patterns within the 12,500 square kilometre elliptical area.
- Studying fault mechanics based on the described underthrusting mechanism with a 37° dip.
- Assessing earthquake damage and secondary effects like liquefaction and landslides mentioned in the description.
Strengths
- Describes a specific major seismic event with a magnitude of MS7.9.
- Includes quantified details like $300,000 in damage and a 12,500 km² aftershock area.
- Provides geological context including focal depths (30-70 km) and fault-plane solution.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data is available only in HTML and PDF formats, which may complicate automated analysis.
Provenance
- Source
- Australian Ocean Data Network
- Time Range
- 20 July 1975 and surrounding period
- Freshness
- Last updated 2026-04-16 09:09:01.357318; freshness should be verified.
- Geography
- Bougainville, Shortland Islands, and the southwestern coast of Bougainville in the Solomon Islands chain.