More loud booms were heard throughout San Diego County just after 4:30 yesterday afternoon.
The USGS says it was not from any new earthquakes, since the nearest recorded tremors happened hours away from San Diego.
Officials at Camp Pendleton say they have a noise advisory in effect through March 5th.
They performed some of those explosive munitions exercises yesterday until midnight.
The Marines have refused to say if those booms were theirs.
This comes after loud booms were heard on Friday, February 24th, from North County to Point Loma.