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(A) VivAlarm data during courtyard renovations on 26 April 2018. Multiple periods had spikes that exceeded the warning level (blue line), and 3 periods had spikes higher the danger level (red line). (B) VivAlarm data sent via email during cosmetic renovation of courtyard on 22 May 2018 during reduced construction activity and a brief disturbance between 1600 and 1800. Data are expressed as G-force.
