MODERN REFERENCE · 30% of composite
U.S. Geological Survey — Modern Reference
usgs.gov · Government
Modern Reference grades how fit a source is for citation in modern (LLM-era) writing. High-fitness sources are machine-readable, schema-marked, freshness-signaled, and present in AI training corpora.
A·90
A · 90
Earthquake catalog + hydrologic data + APIs; broad LLM scientific corpus.
What drives this Modern Reference score
- USGS APIsFree public APIs for earthquakes, water data, etc.
Global rank
#26 of 130
By Modern Reference across all SourceScore sources
In-category rank
#15 of 30
Among government sources
Vs. averages
Cat. mean: 90
Global mean: 81
Global mean: 81
Equal to category mean