Seismic Hazard Map

 Countdown to Earthquake Drill - International Great ShakeOut Day [https://www.shakeout.org/] is October 20, 2022 at 10:20AM

I write about it all over the place. On my personal blog KULSHAN - Lead Author: Stan G. Webb - In Retirement ^{© ®™} [https://stangwebb.blogspot.com/] and, everywhere.

I hope you enjoy my recent photograph of 3,288 m (10,786 ft) Mt. Baker Stratovolcano (Kulshan). The United States Geological Service rates it a VERY HIGH RISK [ https://www.usgs.gov/volcanoes/mount-baker/volcanic-hazards-mount-baker].

3,288 m (10,786 ft) Mt. Baker Stratovolcano (Kulshan). USGS rates it a HIGH RISK.

National Research Council, Canada

https://earthquakescanada.nrcan.gc.ca/pprs-pprp/pubs/GF-GI/GEOFACT_plate-tectonics_e.pdf

Earthquake Hazard Map - from http://www.seismescanada.rncan.gc.ca/

Simplified seismic hazard map for Canada, the provinces and specifically South Western BC:

https://images.app.goo.gl/VoGjsXTi1BqJV2yJ8

Plate tectonics have shaped the continents for millions of years. In British Columbia, they have created the mountains, and are the source of frequent earthquakes along the coast. To understand plate tectonics, we must first understand the internal structure of the Earth. Figure 1 (left) shows a cross-section of the Earth with its layers exposed. The solid inner core is surrounded by the liquid outer core which is surrounded by the mantle. Heat from the Earth’s core rises toward the surface, which causes the mantle to circulate. The outermost layer of the Earth is broken into eight major plates and dozens of smaller ones, and they move up to fifteen centimetres a year. The movement and interaction of these plates is referred to as plate tectonics.

Plate Tectonics Shape (and Shake) British Columbia.

https://earthquakescanada.nrcan.gc.ca/pprs-pprp/pubs/GF-GI/GEOFACT_plate-tectonics_e.pdf

Earthquakes, Volcanoes and Plate Boundaries

Many of the world’s earthquakes and volcanoes are concentrated in distinct zones along the edges of tectonic plates. Most are the result of plates colliding (at convergent boundaries), pulling apart (at divergent boundaries) or sliding past each other (at strike-slip or transform boundaries). Shallow earthquakes are in yellow, the deepest are in red.

https://earthquakescanada.nrcan.gc.ca/pprs-pprp/pubs/GF-GI/GEOFACT_plate-tectonics_e.pdf