
John Cassidy
@earthquakeguy
NRCan earthquake seismologist + UVic Prof. Works with engineers, emergency managers, and communities to minimize the impact of #earthquakes. My thoughts/tweets.
ID: 80607933
https://www.researchgate.net/profile/John_Cassidy6 07-10-2009 15:52:41
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Thanks, Saanich Emergency Program - I am looking forward to this! If you are in Saanich / southern Vancouver Island and interested in earthquakes, tsunamis, earthquake science and preparedness - register today and bring your questions! saanich.ca/EN/main/news-e…

Did you feel shaking on Monday evening at 7:17 p.m. on southern Vancouver Island? 100's did. That was a M3.6 earthquake ~18 km SE of Port Renfrew (70 km W of Victoria). No damage and only light shaking (thanks to the 36 km depth). Details/report shaking: earthquakescanada.nrcan.gc.ca/recent/2025/20…






September 5, 1944: A damaging M5.8 earthquake struck near Cornwall, ON and Massena, NY. Chimneys came crashing down and many masonry structures were damaged. Felt from Quebec City to Boston to New York City to Toronto. Details: earthquakescanada.nrcan.gc.ca/historic-histo… adsabs.harvard.edu/full/1945JRASC…


At 8:00 a.m. PDT today, a M4.8 earthquake occurred in Canada's most seismically active region - offshore between Haida Gwaii and Vancouver Island. No damage or tsunami expected. Details and to report felt shaking: earthquakescanada.nrcan.gc.ca/recent/2025/20… Tectonics: earthquakescanada.nrcan.gc.ca/pprs-pprp/pubs…


Did you feel a slight shake east of Vancouver at 9:28 last night? That was a small M2.6 earthquake located 33 km NW of Abbotsford, and felt by many in the area. earthquakescanada.nrcan.gc.ca/recent/2025/20… A tiny reminder of an active earthquake zone, and to register for the ShakeOut BC exercise.



Officials are assessing data for tsunami risk to #BC following an M7.8 earthquake 255 miles (410 km) southwest of Bering Island, Russia. Stand by for BC-specific info. Follow NWS Tsunami Alerts for updates. More info: emergencyinfobc.gov.bc.ca/event/tsunami-…


Wow, it is almost autumn... But first, just enjoying the last day of summer, sitting out on the deck enjoying amazing, fresh-picked local strawberries, and reading this fantastic book written by a local author! Thanks, 🇨🇦 Jean Paetkau 📕 ! #VancouverIsland


