TY  - JOUR
ID  - epos2001
UR  - http://doi.org/10.1126/sciadv.1500195
IS  - 5
A1  - Walsh, F. R.
A1  - Zoback, Mark
Y1  - 2015/06//
N2  - Over the past 5 years, parts of Oklahoma have experienced marked increases in the number of small- to moderate-sized earthquakes. In three study areas that encompass the vast majority of the recent seismicity, we show that the increases in seismicity follow 5- to 10-fold increases in the rates of saltwater disposal. Adjacent areas where there has been relatively little saltwater disposal have had comparatively few recent earthquakes. In the areas of seismic activity, the saltwater disposal principally comes from ?produced? water, saline pore water that is coproduced with oil and then injected into deeper sedimentary formations. These formations appear to be in hydraulic communication with potentially active faults in crystalline basement, where nearly all the earthquakes are occurring. Although most of the recent earthquakes have posed little danger to the public, the possibility of triggering damaging earthquakes on potentially active basement faults cannot be discounted.
PB  - American Association for the Advancement of Science
JF  - Science Advances
VL  - 1
KW  - triggered earthquakes
KW  -  saltwater disposal
KW  -  hydraulic fracturing
SN  - 2375-2548
TI  - Oklahoma's recent earthquakes and saltwater disposal
AV  - none
ER  -