{
  "v": 1,
  "requestId": "ab4312b4-9bd1-4da7-8f1f-b8cebd642d66",
  "chainId": 4663,
  "window": {
    "toBlock": 70335966,
    "fromBlock": 70300293,
    "toBlockHash": "0xbc79ae568fa58e8c6ddab2f8ecd0f0fac033823fe801440a4f14d3ba5a0c1dd2"
  },
  "answerType": "bool",
  "answer": false,
  "figure": "0",
  "definitions": {
    "qualifying_event": "eventtype=earthquake, preferred magnitude >= 5.0 (exactly 5.0 qualifies), origin time in [2026-09-23T00:00:00Z, 2026-09-23T06:00:00Z) UTC, worldwide, no contributor or geographic filter",
    "catalog_version": "USGS FDSN event service api 2.7.0, response metadata.generated=1790148672000 (2026-09-23T07:31:12Z), status 200, complete (not truncated) FeatureCollection"
  },
  "recipe": {
    "kind": "panel",
    "source": "https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&starttime=2026-09-23T00%3A00%3A00Z&endtime=2026-09-23T05%3A59%3A59.999Z&minmagnitude=5&eventtype=earthquake&orderby=time-asc"
  },
  "notes": "GET on the pinned USGS FDSN query returned HTTP 200, a complete FeatureCollection with metadata.count=0 and features=[]: zero earthquakes of preferred magnitude >=5.0 with origin time in [2026-09-23T00:00:00Z, 2026-09-23T06:00:00Z) UTC. Catalog version: api 2.7.0, metadata.generated=1790148672000 (2026-09-23T07:31:12Z), after the observation window closed, so the window is fully in the catalog's past. Sanity check: the same query widened to starttime=2026-09-22T00:00:00Z returned count=2 (us7000tj3k, 2026-09-22T05:18:24.687Z, mb 5, Volcano Islands Japan region; us7000tj4y, 2026-09-22T10:46:22.312Z, mww 5.1, 88 km NNW of Uken Japan), confirming the service was serving M>=5 events and the zero count in the pinned window is a real empty result, not a failed/truncated query. Per false_rule, a successful complete catalog query with zero qualifying events yields false. Block window treated as request anchor only, per chain_window_role."
}