COLUMBUS, Ohio — A group of U.S. drilling states, seismologists, academics and industry experts issued guidance Monday in a frank new report on handling human-induced earthquakes caused by hydraulic fracturing or the disposal of fracking wastewater.

The 150-page report, produced by the StatesFirst initiative, represents perhaps the most candid discussion on the topic since tremors across the mid-continent — including in Oklahoma, Texas, Colorado and Ohio — began being linked to fracking and deep-injection wastewater disposal around 2009.

It includes descriptions of how states handled various seismic incidents around the country, including their public relations strategies, and matter-of-factly references links between fracking or deep-injection wastewater disposal and earthquakes.

However, the group stopped short of suggesting model regulations.

That’s because each state’s laws and geography are unique, Ohio Oil & Gas Chief Rick Simmers, who co-chaired the effort, said. The report says “a one-size-fits-all approach would not be an effective tool for state regulators.”

Simmers said the report is in the form of a primer, providing states with up-to-date scientific and technical data, case studies and several suggested approaches for detecting and managing the quakes.

Susie Beiersdorfer of Youngstown-based Frackfree Mahoning, said deep-well injection is a risk to public safety and welfare, and the outcry against it will continue.