The study in Geology suggests that "induced seismicity" can occur years after wastewater injection begins.

BBC: Oklahoma earthquake linked to oil extraction wastewater

But the authors of the new study focus on the significantly larger and delayed events in Prague, which they wrote "necessitate reconsideration of the maximum possible size of injection-induced earthquakes, and of the time scale considered diagnostic of induced seismicity".

BBC: Oklahoma earthquake linked to oil extraction wastewater