Sonic Booms near Fontana, CA

Since early 2026, we have detected 5 sonic boom events near Fontana, CA, all suspected. These detections are identified by analyzing real-time web traffic spikes on a popular earthquake information website.

5 Events Detected

Suspected
March 16, 2026
Escondido, CA — Camp Pendleton Live-Fire Training
A strong traffic spike was detected across inland San Diego and Riverside counties at 10:57 AM PDT on March 16. Camp...
Suspected
March 12, 2026
Las Vegas, NV
An extremely strong traffic spike was detected across the Las Vegas Valley at 1:24 PM PDT on March 12, one of the...
Suspected
February 11, 2026
Cypress, CA
A boom was detected near Cypress in Orange County on the afternoon of February 11, more than 6 hours after the...
Suspected
February 11, 2026
Mexicali, BCN
A traffic spike was detected near Mexicali on the morning of February 11, about 9 minutes before the Starlink 17-34...
Suspected
February 10, 2026
Solana Beach, CA
Residents along the North San Diego County coast, including Solana Beach, Del Mar, Encinitas, and Carlsbad, reported a...