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  "path": "/2026/04/20/subsequent-earthquake-advisory-issued-after-m7-4-event-elevated-large-earthquake-risk-japan/",
  "publishedAt": "2026-04-20T20:44:15.000Z",
  "site": "https://watchers.news",
  "tags": [
    "Seismic activity",
    "earthquakes",
    "japan",
    "japan earthquake",
    "Source"
  ],
  "textContent": "Japan Meteorological Agency (JMA) issued an official advisory warning of an elevated risk of a larger earthquake along its Pacific coast on April 20, 2026, after a M7.4 quake near the Japan Trench at 07:53 UTC (16:53 local time). The agency estimates about a 1% chance of a Mw7.8 or greater earthquake occurring within seven days, based on historical statistics.\n\nSource",
  "title": "Subsequent earthquake advisory issued after M7.4 event, elevated large-earthquake risk, Japan"
}