earthquakes

Ezra David Romero / Valley Public Radio

Some of the same people who warned state leaders about the probability of Oroville Dam failing are now sounding the alarm at San Luis Reservoir in Merced County.

It’s the first time since before the drought began that San Luis Reservoir in the hills west of Los Banos is nearly full at about 97 percent.

Study Links Oil And Gas Activity in San Joaquin Valley To Earthquakes

Feb 4, 2016
Joe Moore / Valley Public Radio

Scientists have linked wastewater disposal from oil and gas activity to earthquakes in California for the first time. As Amy Quinton reports from Sacramento, the new study looked at earthquake activity in the southern Central Valley.

California Department of Water Resources

Researchers have long known that the mountain ranges surrounding the Central Valley have been rising faster than expected--a few millimeters every year for over a century.  And over the same time, seismic activity in the area has also increased.  According to a new study, both may be linked to the depletion of groundwater in the Central Valley.  Colin Amos of Western Washington University is lead author on the study.

"We find that the mountains are rising surrounding the San Joaquin Valley where the greatest rates of groundwater withdrawal are happening. "