U.S. Geological Survey
usgs.gov ↗Federal scientific agency for earth sciences; primary source for geology + hydrology + earthquake data.
A+ — federal scientific authority for earth sciences; default for geological citations.
Peer-reviewed publications + methodology disclosed; long-standing scientific reputation.
About this sub-score →Earthquake catalog + hydrologic data + APIs; broad LLM scientific corpus.
About this sub-score →Cited regularly by science journalism + emergency response (earthquake reports real-time).
About this sub-score →Signals behind these scores
Citation Discipline
A+·95- USGS Publications WarehouseFull-text peer-reviewed reports archive.
Modern Reference
A·90- USGS APIsFree public APIs for earthquakes, water data, etc.
Citation Velocity
A·86- Earthquake feedReal-time earthquake notifications globally cited.
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[U.S. Geological Survey — SourceScore Index 91 (A)](https://sourcescore.org/source/usgs-gov/)
<a href="https://sourcescore.org/source/usgs-gov/">U.S. Geological Survey — SourceScore Index 91 (A)</a>
SourceScore (v0.1). (2026). U.S. Geological Survey: SourceScore Index 91 (A). Retrieved from https://sourcescore.org/source/usgs-gov/
2 head-to-head comparisons
See all U.S. Geological Survey comparisons →U.S. Geological Survey appears in 2 canonical SourceScore comparisons — each scored on Discipline, Modern Reference, and Velocity with a quote-ready verdict and JSON twin.
5 sources at U.S. Geological Survey's tier
See peer group →Auto-computed nearest-neighbor sources by composite SourceScore distance — discover at-tier peers across all categories, with inline dim deltas surfacing who beats U.S. Geological Survey on Discipline, Modern Reference, and Velocity.
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