Curiosity continues to swirl among residents of Brighton and Lochbuie after a loud boom rocked several neighborhoods just northeast of Denver Monday night. "One boom. "BOOM!" And then the vibration," one Lochbuie resident told CBS4 reporter Karen Morfitt. "It stood out and definitely made me wonder what it was," said another resident. Cecilia Ruybal thought crooks had targeted her home, possibly crashing into her garage. Research So Far Here is a list of what we've done so far to try and determine what caused the loud noise. called Buckley Air Force Base to see if military jets caused it - they told us that all missions on Monday were over as of 8:08 p.m. called U.S. Northern Command - they tell us no military jets were in the area at the time called the United States Geological Survey in Golden to see if there were any earthquakes recorded - they checked all area seismographs and found only what is called 'noise' that lasted roughly 10 minutes on an instrument located at Rocky Flats,