Japan Observes Tiny Tsunami Following 6.7 Magnitude Quake
Japan reported small tsunami waves along its northern Pacific coast after an offshore earthquake measuring 6.7 magnitude on Sunday evening, November 9.
Event Details
- The first wave struck Miyako, Iwate at 5:37 pm local time (4:37 pm Singapore time), but it was too small to be measured by the Japan Meteorological Agency (JMA).
- Two minutes later, a 10cm wave reached Ofunato, according to the JMA.
- The earthquake occurred around 5:03 pm off the Iwate coast.
- The JMA issued an advisory warning of a possible tsunami up to 1 meter high.
- The United States Geological Survey (USGS) recorded the earthquake at magnitude 6.8.
Tsunami Advisory and Aftershocks
The JMA bulletin stated,
[translate:"A tsunami advisory has been issued"]for the Iwate coast, cautioning that waves could arrive at any moment.
The initial quake was followed by aftershocks ranging between 5.3 and 6.3 magnitude.
Additional Context
Earlier that day, the region experienced six offshore quakes between 4.8 and 5.8 magnitude, which were barely felt on land and did not trigger tsunami warnings.
Live Japanese television broadcasts showed calm sea conditions following the quake.
The area remains deeply affected by the memory of the massive 9.0-magnitude undersea earthquake in 2011, which led to a devastating tsunami causing approximately 18,500 deaths or disappearances.
Author's Summary
Japan experienced a minor tsunami after a 6.7 magnitude offshore quake near Iwate, with warnings issued but no significant wave damage reported.
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