Anvil: An Integrated Archive of Earth Events (Seismic, Space Weather & Typhoon Data, 1990–2026)

Update (v2, 2026-07-23): Added JMA (Japan Meteorological Agency) typhoon best-track data as a new integrated dimension (7-day / 1500 km proximity join). Rebuilt Anvil_Sample.csv and PROVENANCE.json to reflect this addition. Added a GitHub Actions daily update pipeline (USGS, ISC, OMNI2, ASTRO). A CSV (zip) version of the master file is planned for a future release; only the parquet version is included in v2. See anvil_README.md for full details, including known limitations. ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー Why this archive exists: No single nation could have produced every column in this dataset. A budget decision in one country, or a procedural change at one institution, can leave a permanent hole in the record of all humanity — the severance of the Trinidad seismic network's feed to NEIC in 2009 is a documented case in point. The preservation of Earth's events is, by its nature, an international public good. 本データセットのいかなる列も、単一の国だけでは作成し得なかった。一国の予算判断、一機関の手続き変更が、全人類の記録に恒久的な穴を残しうる——2009年、トリニダード地震観測網からNEICへのデータ供給途絶は、その実証例である。地球上の事象の保存は、本質的に国際公共財である。