Magnitude 5.6 earthquake strikes 16 km NE of Tsunagi, Japan
A magnitude 5.6 earthquake struck 16 km northeast of Tsunagi, Japan, on Tuesday, July 28, 2026, at 08:08:35 GMT. While the overall impact alert level is green, indicating low likelihood of significant damage or casualties, instrumental models suggest that shaking could have been felt with peak intensity of 6.164 (Modified Mercalli Intensity scale) in some areas, potentially strong enough to be felt by everyone and cause some light damage to plaster or chimneys. Only one person submitted a "Did You Feel It?" report, confirming that the earthquake was felt in at least one community, with a reported intensity of 1 (CDI).
The USGS assigned a significance score of 483 out of 1000 to this event. This score reflects the earthquake's potential impact based on its magnitude, location, and population exposure. With a depth of 10 km, the tremor occurred relatively close to the surface.