Significant 5.5 quake hits near Miyako, Miyako Shi, Iwate, Japan

Just 15 minutes ago, a 5.5-magnitude earthquake struck near Miyako, Miyako Shi, Iwate, Japan. The tremor was recorded early evening on Monday, April 20th, 2026, at 6:32 pm local time, at a moderately shallow depth of 33. km below the surface.
The event was filed by Indonesia's Meteorology, Climatology, and Geophysical Agency, the first seismological agency to report it.
Our monitoring service identified a second report from France's Réseau National de Surveillance Sismique (RéNaSS) which listed the quake at magnitude 5.3.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Yamada (pop. 15,200) located 97 km from the epicenter, Miyako (pop. 51,200) 97 km away, and Kamaishi (pop. 43,100) 109 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.


Earthquake data:
Date & time: Apr 20, 2026 08:32 am (Universal Time) local time (20 Apr 2026 08:32 GMT)
Magnitude: 5.6
Depth: 24.45 km
Epicenter latitude / longitude: 39.64°N / 143.26°E (Iwate-gun, Iwate, Japan)
Primary data source: USGS
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