- A sonic boom was heard over parts of California and Mexico Tuesday
- The loud noise hit residents living 17 miles outside of San Diego County
- Officials are not sure what caused it, but online flight data may have the answer
- Data shows an unidentified aircraft flying in the area around 8:20pm PST
- A recorded speed also reveals it hit 967 knots off the coastA mysterious sonic boom shook parts of California and Mexico Tuesday evening, marking the third time since February residents have experienced an incident that many are calling a ‘skyquake.’
Officials are unsure what caused the loud sound, but flight tracking data showed an unidentified plane traveling at supersonic speeds off the coast of San Diego County around 8:20pm PST - minutes before the skyquake was heard.
Flight tracking data captured an aircraft soaring at altitudes between 20,000 and 25,000 feet that hit a recorded speed of 967 knots, or 1,112mph.
The sonic boom was so loud it rattled homes, spooked pets and sparked concerns of an earthquake among those living within 17 miles of San Diego County.
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The phenomena was reported by residents as far south as Tijuana and as far east as El Cajon in Mexico, The San Diego Union-Tribune reports.
In the US, reports surfaced in San Diego neighborhoods in the southeast and coastal areas, as well Linda Vista, Clairemont and Tierrasanta.The previous incident shook the area on March 10 at around 4:55pm PST, which hit Rancho Bernardo and Chula Vista in California and again in El Cajon.
Following Tuesday’s incident, San Diego Mayor Todd Gloria shared an announcement via Twitter that may have been attempt to ease residents, but it seemed to have the opposite effect.
Gloria wrote: ‘Yes, I heard it. Now, I don’t know what it was. I’ll share if I get any information. Get vaccinated if you haven’t yet.’
One Twitter user, ‘Politically Stripped,’ called out the mayor, saying San Diego has been hit three times with mysterious booms and ‘no one has any answers.’
Twitter account SD Sports Curse responded: ‘The vaccines stop the spread of Booms.’
The only clues of what caused the loud noise were captured by online flight tracking websites.
Rick Kane, a resident of Newport Beach, speculated the unidentified craft was an F-15.
‘I’m guessing an F-15 from the 422nd TES was responsible for these booms. Perhaps the navy was testing an irst pod or targeting radar,’ Kane tweeted.
San Diego County is surrounded by a number of naval bases and tweets shared by ‘Warship Cam’ show that the the Nimitz class carrier USS Carl Vinson was operating in the area on the day the boom was heard.
The massive war ship left the Naval Base Coronado on June 7 and returned on June 9.
had contacted Naval Base Coronado for comment for this story.