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At 9:15 a.m., USGS sensors detected ground movement, but the signals did not resemble an earthquake, said Leslie Gordon, a spokeswoman for the USGS.
The movement appeared to originate off the Monterey Bay coast, Gordon said.
"Our best guess is that it was a sonic boom from a jet off the coast," Gordon said. "That's all we can say scientifically." ...
After receiving calls about a boom in Southern California, the Federal Aviation Administration said it is searching through flights they monitored Wednesday morning to find the supersonic jet.
"We haven't found anything yet that would explain the sonic boom," said Ian Gregor, a spokesman for the administration.
Originally posted by lucidwaveAlso starting last night sometime and lasting through today I've had this extemely killer headache that is still with me. And I am not a headache guy. I rarely get headaches. But this one has just been aweful, I can' shake it, like a horrible pressurized headache.
Originally posted by TheAgentNineteen
Originally posted by Outrageo
I'm leaning toward a non-sonic type boom from an experimental or military aircraft far overhead - perhaps with a propulsion system or airframe that minimizes or mitigates the sonic part of the boom and we just felt the airwave disturbance traveling to the ground.
So how exactly do you propose that what you experienced was emanating from a Supersonic Aircraft, yet you experienced no "Sonic Boom"? You cannot negate the Laws of Physics in the way in which you are attempting to do so. The "Airwave Disturbance" which you mention IS the "Sonic Boom". They are One in the Same.
As for the Possible Culprits, an SR-71 is definitely at the Top of the List, along with Experimental Aircraft based at Edwards, Nellis, and even China Lake.