John Francis Cassidy is a Canadian seismologist and an Adjunct Professor of the University of Victoria in British Columbia

British Columbia

British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

. He lives in the town of Sidney

Sidney, British Columbia

Sidney is a town located at the northern end of the Saanich Peninsula, on Vancouver Island in the Canadian province of British Columbia. It is one of the 13 Greater Victoria municipalities. It has a population of approximately 11,300. Sidney is located just east of Victoria International Airport,...

 on southern Vancouver Island

Vancouver Island

Vancouver Island is a large island in British Columbia, Canada. It is one of several North American locations named after George Vancouver, the British Royal Navy officer who explored the Pacific Northwest coast of North America between 1791 and 1794...

 and is part of Natural Resources Canada

Natural Resources Canada

The Department of Natural Resources , operating under the FIP applied title Natural Resources Canada , is the ministry of the government of Canada responsible for natural resources, energy, minerals and metals, forests, earth sciences, mapping and remote sensing...

. Cassidy has participated in mapping the structure of the Earth using seismic waves, earthquake hazard research, working with engineers and emergency response organizations and public outreach activities, including the media, educators and the public. Throughout his work with the Geological Survey of Canada in the past 20 years, Cassidy has proclaimed over 100 public and scientific interest articles.