M6.8 earthquake - 77 km SE of Basco, Philippines

What happened

A magnitude 6.8 earthquake struck 77 km SE of Basco, Philippines on 18 May 1993, 10:19 UTC at a depth of 169 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 Aparri, about 192 km away in Cagayan Valley, Philippines.