Query appendix — implementation facts
Verified against release 2.1.0 source on September 30, 2026. Optional parameters are sent only when supplied or needed by the selected task; requests include explicit format/pagination defaults. Internal field names can differ from the provider parameter names below.
| Provider | Parameters or path selection sent |
|---|---|
| USGS / EMSC / GEOFON catalog | format, starttime, endtime, minmagnitude, limit, offset, nodata, optional latitude, longitude, maxradiuskm, minlatitude, maxlatitude, minlongitude, maxlongitude |
| USGS current feed | Chosen magnitude/feed threshold and hour, day, week or month in the public feed path |
| USGS event detail | eventid, format=geojson |
| USGS event products | Exact HTTPS file URL listed by the retrieved event/product manifest. Product type/content key/version select that URL; no arbitrary URL proxy is offered |
| EMSC identifier association | source_id, source_catalog, out_catalog=all, format=json, include_info=true |
| EarthScope station / instrument response | net, sta, optional loc, cha, start, end, plus format, level, nodata |
| EarthScope waveform | net, sta, loc, cha, start, end, format, nodata; station metadata is also queried to preserve network citations |
| NWS | status=actual, selected tsunami event, optional area, point as latitude/longitude, cursor |
| NTWC / PTWC | Selected center's fixed CAP or Atom bulletin path; no user-location parameter is sent to these bulletin files |
| NOAA NCEI historical events | minYear, maxYear, optional country, itemsPerPage, page |
| NOAA NCEI runups | tsunamiEventId, itemsPerPage, page |
| Copernicus Rapid / Risk-Recovery | Service family in the endpoint; category=EARTHQUAKE for discovery, optional code, search, plus limit, offset |
| NASA EONET | category, status, limit, optional start, end date strings |
| USGS WaterData | Collection path; station-specific item path or monitoring_location_id, parameter_code, optional cursor, time, plus f=json, limit |
A point used to inspect a previously downloaded ShakeMap grid is processed in the application; the upstream request is for the manifested grid file. Waveform detrending/tapering and card/map drawing also happen in the application rather than at a third-party image service.
Outgoing scientific-data requests use GET with fixed application User-Agent and Accept headers. They do not forward the visitor's account identifier, email, name, cookies, access token, authorization header or full chat text. The network provider and hosting infrastructure still handle normal request metadata.
Share-page/PNG requests are different: they send the bounded encoded public event snapshot to this application's own host. They do not query scientific providers or accept arbitrary upstream URLs.