{
 "date": "2026-09-29",
 "generated_at": "2026-09-29T06:47:01Z",
 "window_start": "2026-09-28T06:47:01Z",
 "window_end": "2026-09-29T06:47:01Z",
 "generator": "build_brief/1.1",
 "card": "/worldtwin/brief/card/2026-09-29.png",
 "pipeline": {
  "manifest_generated_at": "2026-09-29T06:46:33Z",
  "manifest_missing": false,
  "newest_fetch_at": "2026-09-29T06:46:33Z",
  "stale": false,
  "note": null
 },
 "sources_live": 16,
 "sources_total": 93,
 "lede": "GDACS holds a Red alert: GDACS Red — Tropical Cyclone, Mexico.",
 "items": [
  {
   "kind": "largest_quake",
   "in_window": true,
   "headline": "M5.4 — north of Svalbard, depth 10 km",
   "value": 5.4,
   "units": "Mw",
   "observed_at": "2026-09-28T13:22:39Z",
   "source": "USGS Earthquake Hazards Program",
   "source_url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000ty57",
   "license": "Public domain (US Government)",
   "fetched_at": "2026-09-29T06:44:13.310224+00:00",
   "cache": "/api/cache/v1/quakes.json",
   "view": "/worldtwin/v2/?layers=quakes"
  },
  {
   "kind": "gdacs_alert",
   "in_window": true,
   "headline": "GDACS Red — Tropical Cyclone, Mexico",
   "value": "Red",
   "units": "GDACS alert level",
   "observed_at": "2026-09-29T03:00:00Z",
   "source": "GDACS (Global Disaster Alert and Coordination System, JRC)",
   "source_url": "https://www.gdacs.org/report.aspx?eventid=1001325&episodeid=34&eventtype=TC",
   "license": "CC-BY 4.0",
   "fetched_at": "2026-09-29T06:39:18.113643+00:00",
   "cache": "/api/cache/v1/gdacs_events.json",
   "view": "/worldtwin/v2/?layers=gdacs_events"
  },
  {
   "kind": "fires_24h",
   "in_window": true,
   "headline": "3,673 VIIRS fire detections in 24 h — no 7-day median yet — count record since 2026-09-24",
   "value": 3673,
   "units": "detections",
   "observed_at": "2026-09-29T04:51:00Z",
   "source": "NASA FIRMS (VIIRS SNPP)",
   "source_url": "https://firms.modaps.eosdis.nasa.gov/api/area/",
   "license": "NASA open data",
   "fetched_at": "2026-09-29T06:04:41.083503+00:00",
   "cache": "/api/cache/v1/fires.json",
   "view": "/worldtwin/v2/?layers=fires",
   "median_note": "no 7-day median yet — count record since 2026-09-24",
   "sigma_vs_median": null
  },
  {
   "kind": "instrument",
   "in_window": false,
   "headline": "Internet outages: none observed in the last 24 h; the Cloudflare Radar feed has not updated since 2026-09-29T05:06:39Z (1.7 h).",
   "value": null,
   "units": null,
   "observed_at": "2026-09-29T05:06:39Z",
   "source": "Cloudflare Radar",
   "source_url": "https://radar.cloudflare.com/",
   "license": "CC BY-NC 4.0",
   "fetched_at": "2026-09-29T05:06:39.824701+00:00",
   "cache": "/api/cache/v1/cloudflare_radar.json",
   "view": "/worldtwin/v2/?layers=cloudflare_radar",
   "instrument": "cloudflare_outages"
  }
 ],
 "went_dark": [],
 "came_back": [],
 "delta_state": "delta vs previous brief",
 "previous_brief": "2026-09-28",
 "corrections": [],
 "layer_states": {
  "air_quality": {
   "state": "ok",
   "since": "2026-09-29T06:25:18.818329+00:00"
  },
  "cables": {
   "state": "ok",
   "since": "2026-09-28T09:55:41.922743+00:00"
  },
  "cloudflare_radar": {
   "state": "ok",
   "since": "2026-09-29T05:06:39.832046+00:00"
  },
  "country_polygons": {
   "state": "ok",
   "since": "2026-09-26T12:32:57.504607+00:00"
  },
  "fires": {
   "state": "ok",
   "since": "2026-09-29T06:04:41.199183+00:00"
  },
  "flights": {
   "state": "ok",
   "since": "2026-09-29T06:46:26.289262+00:00"
  },
  "fred": {
   "state": "ok",
   "since": "2026-09-29T00:55:40.762534+00:00"
  },
  "gdacs_events": {
   "state": "ok",
   "since": "2026-09-29T06:39:18.122794+00:00"
  },
  "noaa_co2": {
   "state": "ok",
   "since": "2026-09-29T06:30:44.462218+00:00"
  },
  "pollen": {
   "state": "ok",
   "since": "2026-09-29T05:58:32.789501+00:00"
  },
  "portwatch_chokepoints": {
   "state": "ok",
   "since": "2026-09-28T10:03:49.703373+00:00"
  },
  "quakes": {
   "state": "ok",
   "since": "2026-09-29T06:44:13.319903+00:00"
  },
  "swpc_aurora": {
   "state": "ok",
   "since": "2026-09-29T06:46:33.027803+00:00"
  },
  "usgs_volcano_hans": {
   "state": "ok",
   "since": "2026-09-29T06:00:22.887826+00:00"
  },
  "volcanoes": {
   "state": "ok",
   "since": "2026-09-22T12:30:42.950430+00:00"
  },
  "who_don": {
   "state": "ok",
   "since": "2026-09-29T04:06:12.074218+00:00"
  }
 }
}