Assertion: earthquake's moment | /r/HasProperty | calculated by the usgs
Facets:
value: at 3.9×1022 joules
type: OTHER
Source sentences:
text: The seismic moment (M 0 ), which represents a physical size for the event, was calculated by the USGS at 3.9×1022 joules, slightly less than the 2004 Indian Ocean quake.