PASA (Argentine Study of Antarctic Seismicity) is a seismic activity survey covering the region south of 50°S between 20°W and 80°W. The project involves a network of permanent seismic stations installed at bases including Esperanza, Ushuaia, Orcadas, and Jubany, with data collection starting in 1992. It is a collaborative effort between Argentine and Italian scientific institutions.
Use Cases
- Analyze seismic event frequency and magnitude from station time-series data to study regional seismicity.
- Model surface wave tomography using seismic wave propagation data to infer subsurface structures.
- Investigate anisotropic wave propagation features to understand stress fields and plate boundary mechanics.
- Correlate seismic activity from multiple stations (e.g., Esperanza, Ushuaia) to locate epicenters in the Drake Passage and Bransfield Strait.
- Study long-term tectonic evolution by examining seismic data spanning from 1992 across the defined geographic sector.
Strengths
- Data collection spans over a decade, starting from 1992.
- Covers a defined geographic sector with multiple permanent seismic stations.
- Involves international collaboration and data exchange agreements.
Limitations
- Specific row counts, column details, and file formats are unknown.
- Data freshness and update frequency for the 2002-2004 project period are unclear.
- The sample data and complete data schema are unavailable for review.
Provenance
- Source
- SCIOPS, in collaboration with Istituto Nazionale di Oceanografia e Geofisica Sperimentale (Trieste, Italy).
- Collection Method
- Data gathered from permanently installed and operated seismic stations.
- Time Range
- Project active from 1992, with specific focus on 2002-2004.
- Freshness
- null
- Geography
- Region south of 50°S between meridians 20°W and 80°W, including the Scotia Arc, Drake Passage, Bransfield Strait, and Tierra del Fuego.