{ "story_id": "8d7707587ab2d6e740541ead18bcdf27", "desk": "drm3", "revision": 1, "published_at": "2026-09-02T11:35:51.000Z", "content_hash": "9373bee6e4b0ef90edf15cd2ff25aeb537b8b523a1e7a7713585ceb5ba430063", "hash_basis": "sha256 over `headline\\ndek\\nprose`, plus `\\n` + the canonical citations JSON when any source is placed, plus `\\n#blog` for blogs", "basis": { "headline": "Magnitude 5.6 Earthquake Hits New Zealand's South Island", "dek": "A magnitude 5.6 earthquake woke over 6,000 people in New Zealand's South Island on September 2.", "prose": "A magnitude 5.6 earthquake struck New Zealand's South Island on September 2, waking more than 6,000 people across various zones. [^1]\n\nA new study published in Nature Communications suggests that machine-learning techniques could detect subtle changes in continuous vibrations around volcanoes to identify signs of an impending eruption hours beforehand. [^2]\n\nChristchurch, Whakaari/White Island's sudden eruption in December 2019 killed 22 people and severely injured 25 others, marking New Zealand's deadliest volcanic disaster in recent history. [^3]\n\nGeoNet, the platform monitoring seismic activity in New Zealand, confirmed the details of the magnitude 5.6 tremor. [^4]\n\nInitial evaluations reported no injuries or material damage following the earthquake. [^5]\n\nThe earthquake occurred at 18:57 local time on September 2, originating at a depth of five kilometers approximately 35 kilometers northeast of Milford Sound. [^6]\n\nThe researchers used a cost-loss model to compare economic disruption caused by precautionary action with losses avoided when an eruption was successfully forecast, suggesting precautionary action could reduce preventable losses by 30-90%. [^7]\n\nThe study reanalyzed the performance of a machine-learning eruption forecaster at five volcanoes in New Zealand, Japan, Chile, and Russia using years of seismic data. [^8]\n\nWhen tested on data it had not seen during training, the forecaster anticipated four of five eruptions at Whakaari, with a trade-off of approximately 15 days each year when a warning would have been in place without an eruption occurring. [^9]\n\nIn 2014, Japan's Mt Ontake erupted with little warning, killing 63 people, many of whom had been hiking near the summit. [^10]", "cited": "[{\"statement\":\"A magnitude 5.6 earthquake struck New Zealand's South Island on September 2, waking more than 6,000 people across various zones.\",\"source\":\"Semana - Últimas Noticias de Colombia y el Mundo\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-02T11:35:51.000Z\",\"publisher_count\":1,\"sources\":[\"Semana - Últimas Noticias de Colombia y el Mundo\"]},{\"statement\":\"A new study published in Nature Communications suggests that machine-learning techniques could detect subtle changes in continuous vibrations around volcanoes to identify signs of an impending eruption hours beforehand.\",\"source\":\"Phys.org\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-08-31T17:20:10.000Z\",\"publisher_count\":1,\"sources\":[\"Phys.org\"]},{\"statement\":\"Christchurch, Whakaari/White Island's sudden eruption in December 2019 killed 22 people and severely injured 25 others, marking New Zealand's deadliest volcanic disaster in recent history.\",\"source\":\"Hindustan Times\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-01T04:44:51.000Z\",\"publisher_count\":1,\"sources\":[\"Hindustan Times\"]},{\"statement\":\"GeoNet, the platform monitoring seismic activity in New Zealand, confirmed the details of the magnitude 5.6 tremor.\",\"source\":\"Semana - 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