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Subsequent earthquake advisory issued after M7.4 event, elevated large-earthquake risk, Japan
April 20, 2026
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Posted 2 hours ago by
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.
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The Watchers
Coverage and analysis from United Kingdom. All insights are generated by our AI narrative analysis engine.
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