Context for natural-event information, without pretending to be an authority.

The platform covers recent earthquakes, volcano catalogue and activity records, space-weather events and measurements, and open natural hazards. Records can be incomplete, delayed, preliminary, selective, revised, or unavailable when an upstream provider is degraded. Absence from a rolling feed does not automatically mean an event was cancelled or removed.

The platform does not forecast earthquakes or eruptions, infer causality between space-weather records, turn supplemental EONET geometry into an authoritative boundary, calculate protective action, or replace local official information. Normalized severity helps filter records but does not imply scientific equivalence across event families.

USGS, Smithsonian GVP, NASA DONKI, NOAA SWPC and NASA EONET documents are ingested, validated, normalized, and revised under stable source identities. Public pages show provider identity, original source links, source update time, platform retrieval time, and freshness. Detail pages remain indexable and meaningful without the interactive globe.

Globe requests are constrained to the active viewport and time range. Dense views return deterministic aggregate cells; local views can return capped individual records. The browser never silently downloads complete history.

We target WCAG 2.2 AA. The event catalogue is the primary no-WebGL experience, every rendered globe result has a textual representation, and selection works by keyboard. Marker meaning combines size, colour, outline, and text. Motion respects the operating system’s reduced-motion preference.

If a view creates a barrier, use the server-rendered event catalogue. Accessibility issues should include the page, browser, assistive technology, and the task that was blocked.

Provider-authored facts should be corrected at the original source first. Platform display, identity, attribution, accessibility, or stale-data issues should be reported to the project maintainers with the public event URL and provider event ID. Never include private medical, location, or emergency information.

For an immediate safety concern, do not wait for a platform correction. Follow the relevant local public authority.