Overview
- Japan experienced a magnitude 5.9 quake near Tokyo on Sunday that caused dozens of minor injuries, cut some power and disrupted rail services while the Meteorological Agency ruled out a tsunami risk.
- Hours after the Kanto event, the USGS reported a preliminary magnitude 6.0 off Hokkaido and Japanese authorities opened inspections of transport, power and nuclear facilities with no immediate major damage reported.
- Mexico’s Servicio Sismológico Nacional recorded a cluster of small-to-moderate quakes on Aug. 22–23 in Chiapas and Guerrero, including magnitudes around 4.4 and 4.2, and local authorities said no significant structural damage or casualties have been found.
- Argentina’s SEGEMAR/INPRES publicly refuted claims that tremors in Colombia and Venezuela predict earthquakes in Argentina and reiterated that current science cannot forecast exact quake time, place or magnitude.
- National and international agencies (SSN, JMA, USGS, SEGEMAR/INPRES) continue 24-hour monitoring, caution the public to rely on official channels, and advise preparedness for aftershocks and infrastructure checks that could affect transport and utilities.