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# Strange Sound Reported in San Diego
- URL: https://ivn.us/strange-sound-reported-in-san-diego/
- Published: 2012-06-30T15:53:45.000Z
- Updated: 2026-06-22T19:26:43.000Z
- Author: Wes Messamore
- Tags: News

[Weird](http://www.nbcsandiego.com/news/local/Strange-Sound-Reported-San-Diego-Coastline-Mystery-Sound-160873565.html?dr&ref=ivn.us):

> 'Residents from Chula Vista to Oceanside reported a large rumble around 12:45 p.m. Friday.The mysterious sensation was described by some people as sounding like a door slamming while others said it was strong enough to rattle windows.A check of the U.S. Geological Survey website showed no earthquake activity.NBC 7 San Diego's Dagmar Midcap was in Del Mar at the time and described it as a "Sonic 'rumble'" She tweeted, "according to my contacts at USGS, not seismic but rather sonic."'

Creepy:

> 'Two months ago, when San Diegans heard a similar sound, there was evidence of chaff on weather radar. Chaff is a material sometimes emitted during military exercises.'