i'm not saying this is notable but just interesting. usually don't see these "diamond" shaped indicators on this site. last time i saw one was for a controlled explosion of some sort.
and they describe this location as 17 km from such and such. interdasting is all..
https://earthquake.usgs.gov/earthquakes/map/?currentFeatureId=uu60479902&extent=12.03932,-144.22852&extent=57.79794,-45.79102