Southwestern British Columbia is a seismically active region. The 1700 Cascadia earthquake occurred along the Cascadia subduction zone on January 26, 1700, with an estimated moment magnitude of 8.7–9.2. The region can expect another earthquake of this magnitude (often referred to as The Big One) in the future. Vancouver Island sits atop this subduction zone, where sea-floor of the Juan de Fuca plate is being pushed eastward beneath the North America continent.

SchoolShake is installing a network of Raspberry Shake seismometers in southern Vancouver Island schools to provide a real-time feed of ground shaking and earthquake locations. Observatory Hill has a Raspberry Shake installed and is part of the SchoolShake network. There are many other Raspberry Shakes installed in the region which you can see on this map.

Below is the real-time output from the Raspberry Shake on Observatory Hill for the last day. You can read the instructions on how to use this data viewer.