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Amy Sancetta, Associated Press
Citizens respond to speakers during a community forum to discuss recent seismic activity related to deep wastewater injection wells, in Youngstown, Ohio on Wednesday, Jan. 11, 2012.

YOUNGSTOWN, Ohio — The company that voluntarily shut down an oil and gas wastewater well to study any links to a series of earthquakes in northeast Ohio is urging caution in accepting a seismologist's finding that the injection well almost certainly caused the quakes.

About 500 residents living near the Youngstown well attended a public forum to hear from state regulators and experts Wednesday.

Afterward, a spokesman for well owner D&L Energy Group said the seismologist made his judgment from "an office in New York" and no one has definitively proven the quakes are related to activity at the well.

Spokesman Vince Bevacqua said the company believes a geologic study it is undertaking will be a better gauge of what's going on.