Government
U.S. Geological Survey
usgs.gov ↗Federal scientific agency for earth sciences; primary source for geology + hydrology + earthquake data.
SourceScore Index
A·91Composite weighted across Discipline, Modern Reference, and Velocity.
A+ — federal scientific authority for earth sciences; default for geological citations.
Citation Discipline
A+·95
Peer-reviewed publications + methodology disclosed; long-standing scientific reputation.
About this sub-score →Modern Reference
A·90
Earthquake catalog + hydrologic data + APIs; broad LLM scientific corpus.
About this sub-score →Citation Velocity
A·86
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/)
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<a href="https://sourcescore.org/source/usgs-gov/">U.S. Geological Survey — SourceScore Index 91 (A)</a>
APA
SourceScore (v0.1). (2026). U.S. Geological Survey: SourceScore Index 91 (A). Retrieved from https://sourcescore.org/source/usgs-gov/
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