is only part of the chain reaction from industrial activities that worry the public. Impressions toward induced seismicity are very different between different groups of people. The public tends to feel more negatively towards earthquakes caused by human activities than natural earthquakes. Two major parts of public concern are related to the damages to infrastructure and the well-being of humans. Most induced seismic events are below M 2 and are not able to cause any physical damage. Nevertheless, when the seismic events are felt and cause damages or injuries, questions arise from the public whether it is appropriate to conduct oil and gas operations in those areas. Public perceptions may vary based on the population and tolerance of local people. For example, in the seismically active Geysers geothermal area in Northern California, which is a rural area with a relatively small population, the local population tolerates earthquakes up to M 4.5. Actions have been taken by regulators, industry and researchers. On October 6, 2015, people from industry, government, academia, and the public gathered together to discuss how effective it was to implement a traffic light system or protocol in Canada to help manage risks from induced seismicity. Risk assessment and tolerance for induced seismicity, however, is subjective and shaped by different factors like politics, economics, and understanding from the public. Policymakers have to often balance the interests of industry with the interests of the population. In these situations, seismic risk estimation serves as a critical tool for quantifying future risk, and can be used to regulate earthquake-inducing activities until the seismic risk reaches a maximum acceptable level to the population. Traffic Light System One of the methods suggested to mitigate seismic risk is a Traffic Light System (TLS), also referred to as Traffic Light Protocol (TLP), which is a calibrated control system that provides continuous and real-time monitoring and management of ground shaking of induced seismicity for specific sites. TLS was first implemented in 2005 in an enhanced geothermal plant in Central America. For oil and gas operations, the most widely implemented one is modified by the system used in the UK. Normally there are two types of TLS – the first one sets different thresholds, usually earthquake local magnitudes (ML) or ground motions from small to large. If the induced seismicity reaches the smaller thresholds, modifications of the operations are implemented by the operators and the regulators are informed.