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by mehrdadn 3061 days ago
> The Richter scale measures and describes impacts, so you already know the impact from the 6.4 rating itself.

This is moment magnitude, not Richter. Specifically, 6.4 "Mww", or "Moment magnitude derived from a centroid moment tensor inversion of the W-phase", whatever that means. [1]

[1] https://earthquake.usgs.gov/earthquakes/eventpage/terms.php