Yes, but I doubt that was the test and it occured at a depth of 10 kilometers
You're probably right... but the location of the eq was interesting and timely.
Oct 28 = Constantine won an empire. Oct 29 = Cyrus won and empire.
Can you envision someday Putin's name ranking among those ??
Btw... 10 km is the USGS' default depth [when the actual depth is unknown.]