any geologists out there?

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    Just a general question if pumping any oil out of the ground can cause instability underground, and be a factor in earthquakes? I mean, does the oil/gas that is pumped out naturally get replaced with water so the pressure is maintained?

    The deepest oil seems to be around the 4000m mark and the earth quake seems to occur some 15km undernearth the surface so it seems unrelated. But it seems to work the other way where earth movements can suddenly open/close oil fields.

    Might be a stupid question but is anyone out there who can enlighten me?
 
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