{
 "date": "2026-09-30",
 "generated_at": "2026-09-30T06:47:02Z",
 "window_start": "2026-09-29T06:47:02Z",
 "window_end": "2026-09-30T06:47:02Z",
 "generator": "build_brief/1.1",
 "card": "/worldtwin/brief/card/2026-09-30.png",
 "pipeline": {
  "manifest_generated_at": "2026-09-30T06:46:33Z",
  "manifest_missing": false,
  "newest_fetch_at": "2026-09-30T06:46:33Z",
  "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": "M5.6 — 74 km S of Yonakuni, Japan, depth 10.792 km",
   "value": 5.6,
   "units": "Mw",
   "observed_at": "2026-09-30T05:00:24Z",
   "source": "USGS Earthquake Hazards Program",
   "source_url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000tyhk",
   "license": "Public domain (US Government)",
   "fetched_at": "2026-09-30T06:44:13.463191+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": "2026-09-30T03:00:00Z",
   "source": "GDACS (Global Disaster Alert and Coordination System, JRC)",
   "source_url": "https://www.gdacs.org/report.aspx?eventid=1001325&episodeid=38&eventtype=TC",
   "license": "CC-BY 4.0",
   "fetched_at": "2026-09-30T06:24:22.094497+00:00",
   "cache": "/api/cache/v1/gdacs_events.json",
   "view": "/worldtwin/v2/?layers=gdacs_events"
  },
  {
   "kind": "fires_24h",
   "in_window": true,
   "headline": "4,122 VIIRS fire detections in 24 h — no 7-day median yet — count record since 2026-09-24",
   "value": 4122,
   "units": "detections",
   "observed_at": "2026-09-30T05:59:00Z",
   "source": "NASA FIRMS (VIIRS SNPP)",
   "source_url": "https://firms.modaps.eosdis.nasa.gov/api/area/",
   "license": "NASA open data",
   "fetched_at": "2026-09-30T06:04:41.104961+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": true,
   "headline": "Geomagnetic storm scale G0 (none) — numeric Kp series not parseable in today's cache",
   "value": "0",
   "units": "NOAA G scale",
   "observed_at": "2026-09-30T06:43:00Z",
   "source": "NOAA Space Weather Prediction Center",
   "source_url": "https://services.swpc.noaa.gov/json/ovation_aurora_latest.json",
   "license": "Public Domain (US Gov)",
   "fetched_at": "2026-09-30T06:46:33.031958+00:00",
   "cache": "/api/cache/v1/swpc_aurora.json",
   "view": "/worldtwin/v2/?layers=swpc_aurora",
   "instrument": "swpc_kp",
   "window": "as of 2026-09-30T06:43:00Z"
  }
 ],
 "went_dark": [],
 "came_back": [],
 "delta_state": "delta vs previous brief",
 "previous_brief": "2026-09-29",
 "corrections": [],
 "layer_states": {
  "air_quality": {
   "state": "ok",
   "since": "2026-09-30T06:25:18.977290+00:00"
  },
  "cables": {
   "state": "ok",
   "since": "2026-09-29T09:55:44.790873+00:00"
  },
  "cloudflare_radar": {
   "state": "ok",
   "since": "2026-09-30T05:06:39.808356+00:00"
  },
  "country_polygons": {
   "state": "ok",
   "since": "2026-09-26T12:32:57.504607+00:00"
  },
  "fires": {
   "state": "ok",
   "since": "2026-09-30T06:04:41.236129+00:00"
  },
  "flights": {
   "state": "ok",
   "since": "2026-09-30T06:46:26.694956+00:00"
  },
  "fred": {
   "state": "ok",
   "since": "2026-09-30T00:55:40.036457+00:00"
  },
  "gdacs_events": {
   "state": "ok",
   "since": "2026-09-30T06:24:22.103601+00:00"
  },
  "noaa_co2": {
   "state": "ok",
   "since": "2026-09-30T06:30:43.430909+00:00"
  },
  "pollen": {
   "state": "ok",
   "since": "2026-09-30T05:58:32.797522+00:00"
  },
  "portwatch_chokepoints": {
   "state": "ok",
   "since": "2026-09-29T10:03:56.065490+00:00"
  },
  "quakes": {
   "state": "ok",
   "since": "2026-09-30T06:44:13.472829+00:00"
  },
  "swpc_aurora": {
   "state": "ok",
   "since": "2026-09-30T06:46:33.031958+00:00"
  },
  "usgs_volcano_hans": {
   "state": "ok",
   "since": "2026-09-30T06:00:22.862455+00:00"
  },
  "volcanoes": {
   "state": "ok",
   "since": "2026-09-22T12:30:42.950430+00:00"
  },
  "who_don": {
   "state": "ok",
   "since": "2026-09-30T04:06:11.093148+00:00"
  }
 }
}