M6.6 earthquake - 215 km N of Hirara, Japan

What happened

A magnitude 6.6 earthquake struck 215 km N of Hirara, Japan on 11 May 1986, 01:24 UTC at a depth of 194 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.

The nearest town in our records is Hirara, about 215 km away in Okinawa, Japan.