Camp Pendleton troops are training on base this week with live mortar fire, and the noise is carrying across the Temecula, Murrieta and Lake Elsinore Valleys. Depending on atmospheric conditions, the noise may be heard up to 50 miles away.
(SOURCE)
According to a report from the base, the following exercises are taking place:
Monday, Sept. 16:
Firing High Explosive munitions into the Whiskey/Zulu Impact areas.
Mortar Fire = 6 a.m. to midnight
Tuesday, Sept. 17:
Firing High Explosive munitions into the Whiskey/Zulu Impact areas.
Mortar Fire = 6 a.m. to midnight
Wednesday, Sept. 18
Firing High Explosive munitions into the Whiskey/Zulu Impact areas.
Mortar Fire = 6 a.m. to midnight
Thursday, Sept. 19
Firing High Explosive munitions into the Whiskey/Zulu Impact areas.
Mortar Fire = 6 a.m. to midnight
Friday, Sept. 20
Firing High Explosive munitions into the Whiskey/Zulu Impact areas.
Mortar Fire = 6 a.m. to midnight
We had a sudden, single ground shake and boom in San Diego on June 17 2014 at about 1pm. Can’t find any info or news about it, I looked at a nearby seismograph using GEE (Global Earthquake Explorer http://www.seis.sc.edu/gee/ ) and it showed up as a large single up/down ground movement event. Camp Pendleton is about 45 miles away. Is that what this was?
Hi yes probably. Look at that: http://www.pendleton.marines.mil/About/BaseInformation/NoiseAdvisory.aspx