https:// earthquake.usgs.gov/earthquakes/eventpage/ci37908735#map

https:// maps.conservation.ca.gov/doggr/wellfinder/#close

https:// www.sciencedaily.com/releases/2015/05/150529131822.htm

https:// phys.org/news/2013-12-survey-deep-sea-chemical-munitions-dump.html