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Données ouvertes

Bibliothèque

Jeux de données ouverts, entièrement documentés — interrogeables ici, et lisibles par n’importe quel LLM.

2 jeux de données

natural-hazards

  • Federal Emergency Management Agency (FEMA)

    FEMA disaster declarations by designated area

    Every FEMA disaster declaration summary from OpenFEMA (DisasterDeclarationsSummaries v2, https://www.fema.gov/api/open/v2), one row per declaration x designated area. Each row carries the declaration type (DR major disaster, EM emergency, FM fire management, FP fire suppression), incident type, declaration and incident dates, fiscal year declared, which assistance programs were authorized (Individuals and Households, Individual Assistance, Public Assistance, Hazard Mitigation), state, county FIPS and FEMA region. Method: keyless GET with OData paging ($top=1000, deterministic $orderby=disasterNumber,designatedArea); volatile API-internal fields (id, hash, lastRefresh) are excluded so snapshots only change when the data changes. Units: none (categorical + dates); program flags are booleans. Caveats: ongoing incidents have null end/closeout dates until FEMA closes them; FEMA can amend historical records; declaration_title is free-text incident names. Coverage: U.S. states, territories and tribal nations, 1953 to present, per designated area. Provenance: FEMA OpenFEMA API - citation required, see license. Primary key: (fema_declaration_string, designated_area). Join keys: state_code, declaration_year. Cadence: refreshed daily; a new snapshot appears only when the data changes. Sample use: count declarations by state_code and declaration_year for disaster frequency trends; filter incident_type for hazard-specific series.

    • government
    • natural-hazards
    • disaster
    • us
    lignes
    70 377
    Qualité
    92
    Mis à jour
    23 sept. 2026
    À jour
    Licence
    Licence incertaine

  • USGS Earthquake Hazards Program

    Significant earthquakes worldwide, magnitude 5.0+ (2020–)

    Every magnitude 5.0+ earthquake in the USGS ANSS Comprehensive Catalog since 2020-01-01: origin time, epicenter, depth, magnitude and type, felt reports, tsunami flag, and review status. Provenance: USGS Earthquake Hazards Program keyless GeoJSON API (https://earthquake.usgs.gov/fdsnws/event/1/query), U.S. public domain - please credit the U.S. Geological Survey. Coverage: worldwide, magnitude 5.0 and above, from 2020-01-01 to the present; smaller quakes are not collected, and detection completeness varies by region and network density. Primary key: event_id (USGS event id, e.g. 'us7000tigd'). The feed replays the full window on each refresh, so revised magnitudes, depths and locations update existing rows in place (see updated_utc). Cadence: refreshed daily; new quakes typically appear within minutes to hours of occurrence. Nullability: event_id, time_utc, latitude, longitude, magnitude and tsunami_flag are never null; depth_km may be null when the feed omits it. Sample use: filter time_utc >= the start of a year and order by magnitude desc for that year's largest events.

    • earthquake
    • natural-hazards
    • usgs
    lignes
    12 270
    Qualité
    99
    Mis à jour
    23 sept. 2026
    À jour
    Licence
    Usage commercial OK