A geothermal energy plant near the Salton Sea in California taps deep underground heat from the southern San Andreas Fault rift zone. A new study ties the amount of water pulled from the ground by the geothermal plant here to the frequency of earthquakes.
The continental U.S. experiences small earthquakes every day. But over the past few years, their numbers have been increasing. Geoscientists say the new epidemic of quakes is related to industrial wastewater being pumped into underground storage wells.
Now there's new research that reveals two trigger mechanisms that may be setting off these wastewater quakes — other, larger earthquakes (some as far away as Indonesia), and the activity at geothermal power plants.
The wife of Li Yiqian, Yang Liming, sits in their house, which is plastered with pictures of China's leaders, an attempt to help prevent local authorities from demolishing it. Her husband has been sentenced to three years in prison for organizing a crowd to create a disturbance; she believes it's for his work in helping dispossessed villagers petition.
Five years after the massive Wenchuan quake in China's Sichuan province left about 90,000 dead and missing, allegations are surfacing that corruption and official wrongdoing have plagued the five-year-long quake reconstruction effort.
The official press is full of praise for how "all Chinese have a reason to be proud of what the concerted efforts of the entire nation achieved in creating a new life for the survivors."
As rocks and dirt tumble down a mountainside (at left), a police officer urges people to stay back on a road in Baoxing county, Sichuan province, on Monday. Rescuers are having a hard time getting to victims of Saturday's strong earthquake because of aftershocks and landslides.
A rescuer carries a child to safety after she was pulled out of her collapsed home after an earthquake hit Ya'an City in southwest China's Sichuan province on Saturday.
Credit AFP/Getty Images
"A powerful earthquake jolted China's Sichuan province Saturday near where a devastating quake struck five years ago," The Associated Press writes. According to CNN, early estimates put the death toll around 100. More than 1,000 other people were reportedly injured. Both figures could change substantially as more information comes in.
Five earthquakes rocked central Oklahoma early today, according to the U.S. Geological Survey. The most powerful tremor struck at about 2:00, central time this morning, northeast of Luther. That's a little less than 30 miles northeast of Oklahoma City. The quake's magnitude was 4.2. Other tremors had magnitudes between 2.8 and 4.2.