Urban activities induce minor vibrations on the Earth's surface, detectable by highly sensitive seismometers. In Singapore, since April 2020, significant changes in human activities have occurred due to government measures to suppress the spread of COVID-19. The impact of the pandemic and corresponding mitigation measures has been quantified using traffic flow data at the National University of Singapore (NUS) and the intersection of Pasir Panjang Port Terminal and West Coast Park, representing activities in non-essential workplaces, essential workplaces, and recreational areas.
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