Actually a volcanic eruption, not just an earthquake, its occurred 5km WSW of Volcano, Hawaii at a depth of just 700 metres
There has been a lot of seismic activity in the region, and elsewhere. Map is via the United States Geological Survey (USGS) of this latest:
![](https://az705044.vo.msecnd.net/20180604/hawaii-volcano-earhquake.png)