The day before, the department announced that the owner of the injection well near Youngstown had agreed to stop injecting the brine "so that any potential links with earthquakes can be further assessed," Ann Sanner of The Associated Press reported."Ten minor earthquakes have occurred this year within 2 miles of the well, the department said. Each registered at 2.7 magnitude or lower."
Saturday, there was a 4.0 quake, just at the threshold for causing damage. "Area residents said a loud boom accompanied the shaking. It sent some stunned residents running for cover as bookshelves shook and pictures and lamps fell from tables," the AP reported. On Sunday, state officials said four other injection wells drilled in the area would be indefinitely prohibited from being opened and taking fluid, CNN reports.