I have been reporting that the most of shallow quakes are caused by the Cleaning-up Operation on Reptilian Secret Underground Bases led by Galactic Federation of Light.
Those quakes are made by the collapse of Reptilian Secret Underground Bases. Sometimes, the blood from Reptilians and human slaves in those collapsed underground bases can come out to the surface.
The following image is the blood oozing out from Collapsed Reptilian Secret Base in Antarctica. The location is very close to the US base in Antarctica. If you are woman, you know this is real blood because we have bloody period once a month.