So I guess that would be 64x the explosive energy and thus 64x Meteor Crater’s diameter (1 mile) - about 64 miles across. Pretty impressive for a grain of sand hitting a grapefruit in relative sizes.
8 posted on 02/14/2017 12:05:57 PM PST by Menehune56
("Let them hate so long as they fear" (Oderint Dum Metuant), Lucius Accius (170 BC - 86 BC))