Overview
- Japan’s Meteorological Agency said a magnitude 6.2 quake struck off Iwate on Monday afternoon local time at about 10 km depth, prompting a light advisory for sea-level changes of up to 20 cm.
- The new tremor followed Sunday’s stronger offshore earthquake estimated at magnitude 6.7–6.9 by JMA (6.8 by USGS) that hit around 17:03 local time at a shallow depth.
- JMA issued a tsunami advisory after Sunday’s quake and later lifted it about three hours later once only small tsunamis were recorded at ports including Miyako, Ofunato, Kuji and Ominato.
- Authorities reported brief power outages and bullet train delays, with checks confirming no anomalies at nearby nuclear facilities and no confirmed casualties or major structural damage.
- More than ten aftershocks have been logged since Sunday, the strongest around magnitude 6.3, and officials cautioned residents to stay alert for additional quakes over the coming days.