We all know that Portland lies in the heart of Earthquake country. We might have smaller shocks from shallow crustal faults, and someday we might have The Big One, as the oceanic Juan de Fuca Plate dives beneath the North American continent. This subduction zone has been quiet for the past 300 years, but geologists say that sooner or later we could have what is called a “megathrust event”, which just means, Very Big Earthquake.
If you are out in the open and the ground starts shaking, get out from under trees and away from building if you can. If you are indoors, you want to duck and cover - and hold on! The table you duck under might slide across the room if you don’t hold on tightly.
After the shaking stops, you can move about and look after loved ones, but be ready for aftershocks, which can be just as big as the original earthquake.
Once it starts shaking, it’s too late to get ready. We have to BE ready in advance. We’ll talk about that in coming weeks, but here are two important things to be thinking about now: seismic proofing of your building, and of your water heater. Will your house still be standing after an earthquake? One thing that will make a big difference is making sure your house is attached to the foundation so that it won’t slide off in an Earthquake. If you own a house that was built prior to 1993, it probably is not well attached to the foundation. Don’t despair: houses are regularly retrofitted for seismic protection. You can find out about retrofitting your home at https://www.oregon.gov/ccb/homeowner/Pages/earthquake-retrofit.aspx.
If you rent, talk to your landlord. Retrofitting isn’t cheap. You can make the argument that retrofitting will add to the value of the property, and is the right thing to do. Be persistent, and if you are in multiunit housing, talk to your neighbors and consider approaching your landlord as a group. And, check the link above for possible financial assistance.
Thanks for reading.
Next month: Water!
This column is brought to you by the St. Johns NET team, neighborhood volunteers who have been specially trained to help out in emergencies. https://portlandprepares.org/net-teams/north/st-johns/