| { |
| "dataset": "gem-global-active-faults", |
| "title": "GEM Global Active Faults Database \u2014 GeoParquet", |
| "description": "Standardized GeoParquet conversion of the GEM Foundation's Global Active Faults Database (GAF-DB), preserving original fault geometries, kinematic and slip-rate attributes, and reference/provenance information.", |
| "source": { |
| "name": "GEM Global Active Faults Database (GAF-DB)", |
| "publisher": "Global Earthquake Model (GEM) Foundation", |
| "repository": "https://github.com/GEMScienceTools/gem-global-active-faults", |
| "source_file_url": "https://raw.githubusercontent.com/GEMScienceTools/gem-global-active-faults/master/geojson/gem_active_faults.geojson", |
| "citation": "Styron, R. and Pagani, M. (2020). The GEM Global Active Faults Database. Earthquake Spectra, 36(1_suppl), 160-180." |
| }, |
| "license": "CC BY-SA 4.0", |
| "transformation": { |
| "date_utc": "2026-08-31T08:41:12.790621Z", |
| "pipeline": [ |
| "download source GeoJSON", |
| "standardize column names (snake_case) and text fields", |
| "enforce CRS EPSG:4326", |
| "validate and repair invalid geometries (make_valid)", |
| "check duplicates and null attribute integrity", |
| "write GeoParquet", |
| "round-trip validation" |
| ], |
| "notes": "Representation-only transformation. No geological reinterpretation, slip-rate estimation, or new attributes introduced." |
| }, |
| "format": "GeoParquet", |
| "crs": "EPSG:4326", |
| "row_count": 16195, |
| "bounding_box": [ |
| -180.0, |
| -66.163, |
| 179.999999, |
| 86.805 |
| ], |
| "geometry_types": { |
| "LineString": 16195 |
| }, |
| "schema": [ |
| { |
| "field": "accuracy", |
| "dtype": "object" |
| }, |
| { |
| "field": "activity_confidence", |
| "dtype": "object" |
| }, |
| { |
| "field": "average_dip", |
| "dtype": "object" |
| }, |
| { |
| "field": "average_rake", |
| "dtype": "object" |
| }, |
| { |
| "field": "catalog_id", |
| "dtype": "object" |
| }, |
| { |
| "field": "catalog_name", |
| "dtype": "object" |
| }, |
| { |
| "field": "dip_dir", |
| "dtype": "object" |
| }, |
| { |
| "field": "downthrown_side_dir", |
| "dtype": "object" |
| }, |
| { |
| "field": "downthrown_side_id", |
| "dtype": "object" |
| }, |
| { |
| "field": "epistemic_quality", |
| "dtype": "object" |
| }, |
| { |
| "field": "exposure_quality", |
| "dtype": "object" |
| }, |
| { |
| "field": "fs_name", |
| "dtype": "object" |
| }, |
| { |
| "field": "last_movement", |
| "dtype": "object" |
| }, |
| { |
| "field": "lower_seis_depth", |
| "dtype": "object" |
| }, |
| { |
| "field": "name", |
| "dtype": "object" |
| }, |
| { |
| "field": "net_slip_rate", |
| "dtype": "object" |
| }, |
| { |
| "field": "notes", |
| "dtype": "object" |
| }, |
| { |
| "field": "reference", |
| "dtype": "object" |
| }, |
| { |
| "field": "shortening_rate", |
| "dtype": "object" |
| }, |
| { |
| "field": "slip_type", |
| "dtype": "object" |
| }, |
| { |
| "field": "strike_slip_rate", |
| "dtype": "object" |
| }, |
| { |
| "field": "upper_seis_depth", |
| "dtype": "object" |
| }, |
| { |
| "field": "vert_sep_rate", |
| "dtype": "object" |
| }, |
| { |
| "field": "geometry", |
| "dtype": "geometry" |
| } |
| ], |
| "file": { |
| "name": "gem_active_faults.parquet", |
| "sha256": "e44ce49633db14a5edadf00f3b4f4887f71ac3a6a0847ceab0709f3125212694", |
| "size_mb": 3.098 |
| } |
| } |
