general background info https://en.wikipedia.org/wiki/Cascadia_subduction_zone https://en.wikipedia.org/wiki/Cascadia_subduction_zone An important detail is:

general background info https://en.wikipedia.org/wiki/Cascadia_subduction_zone https://en.wikipedia.org/wiki/Cascadia_subduction_zone An important detail is: ``` forty-one subduction zone earthquakes on the Cascadia subduction zone in the past 10,000 years, suggesting a general average earthquake recurrence interval of only 243 years ``` With the last being in the year 1700 which puts the next firmly in the overdue with respect to average interval but not beyond the range of observed variance. Infrastructure related folks in the area might want to look into https://www.shakealert.org/ https://www.shakealert.org/