Seismicity

Induced seismicity is ground shaking triggered by human activity, not a gradual build-up of geological pressure over time as in natural seismicity. The cause of induced seismicity can be blasting at a local quarry, a low-flying helicopter, or testing a geothermal well. In the case of geothermal projects, ground shaking can be caused by fluid pressure as fractures connecting deep wells are created and expanded.

By properly sizing the fluid pressure rate when injecting into deepwater wells, induced seismic events can be avoided. Even so, ground shaking in such projects is always monitored and evaluated immediately. According to the recorded data, the injection parameters are then adjusted and the injection may even be stopped completely.

It does not occur, drilling does not have an immediate effect on the rock environment in its surroundings.