Recent earthquake activities has made some researchers pondering the cause. Maybe  mother earth don%u2019t like to be drilled or pinched!

A good sized community has linked the quakes  to mining activities for energy and metals.    There has been quite  a bit of avail. research  on the web- see links below.

a very important piece of research by the very big oil driller Schlumberger- pls download the pdf file and read

http://www.slb.com/resources/publications/industry_articles/oilfield_review/2000/or2000sum01_seismicity.aspx

http://www.google.com/search?hl=en&source=hp&q=drilling activities earthquake&aq=f&aqi=&aql=&oq=

http://answers.yahoo.com/question/index?qid=20060905014314AAbBzP2

All oil extracted from California land will be taxed 20% per barrel, and the revenue generated from this tax will for explicitly to paying for California schools.