It's not illegal to cause an earthquake. You can't contaminate groundwater, pollute the air or poison endangered species. But federal environmental laws impose no penalty for setting off a seismic rupture that collapses chimneys or buckles roads. Still, when humans make the ground shake with activities tied to oil and gas drilling, or by injecting a power plant's carbon dioxide emissions underground, it tends to make the neighbors antsy. And a study issued late last week by the National Research Council says that industry and regulators could be doing more to prevent earthquakes.