Cascadia Tsunami ~ Understanding Tectonic Risk

Kathryn Schulz writes in The New Yorker of The Really Big One...

"An earthquake will destroy a sizable portion of the coastal Northwest. The question is when. [...] At approximately nine o’ clock at night on January 26, 1700, a magnitude-9.0 earthquake struck the Pacific Northwest, causing sudden land subsidence, drowning coastal forests, and, out in the ocean, lifting up a wave half the length of a continent. It took roughly fifteen minutes for the Eastern half of that wave to strike the Northwest coast. It took ten hours for the other half to cross the ocean. [...] We now know that the Pacific Northwest has experienced forty-one subduction-zone earthquakes in the past ten thousand years. If you divide ten thousand by forty-one, you get two hundred and forty-three, which is Cascadia’s recurrence interval: the average amount of time that elapses between earthquakes. That timespan is dangerous both because it is too long -- long enough for us to unwittingly build an entire civilization on top of our continent’s worst fault line -- and because it is not long enough. Counting from the earthquake of 1700, we are now three hundred and fifteen years into a two-hundred-and-forty-three-year cycle."

Here's a simulation of what happened back in 1700... And here's a geologist's discussion... Finally, documentary shock & awe imagery... NYTimes' DotEarthling Andrew Revkin weighs in too, with nice infographic showing past 8.0 and 9.0 events over 10K years...

Ready Rx ~ Atul Gawande on Boston Hospitals...

Dr Atul Gawande shares in the New Yorker a bit about how and Why Boston's Hospitals Were Ready...

"The bombs at the Boston Marathon were designed to maim and kill, and they did. Three people died within the first moments of the blast. More than a hundred and seventy people were injured. [...] Yet it now appears that every one of the wounded alive when rescuers reached them will survive. [...] The explosions took place at 2:50 P.M., twelve seconds apart. Medical personnel manning the runners’ first-aid tent swiftly converted it into a mass-casualty triage unit. Emergency medical teams mobilized en masse from around the city, resuscitated the injured, and somehow dispersed them to eight different hospitals in minutes, despite chaos and snarled traffic. [Indeed,] everything happened too fast for any ritualized plan to accommodate. [Nevertheless] nurses, doctors, X-ray staff, transport staff, you name it showed up as soon as they heard the news. They wanted to help, and they knew how. As one colleague put it, they did on a large scale what they knew how to do on a small scale. [...] Talking to people about that day, I was struck by how ready and almost rehearsed they were for this event. A decade earlier, nothing approaching their level of collaboration and efficiency would have occurred. We have, as one colleague put it to me, replaced our pre-9/11 naïveté with post-9/11 sobriety."

Read the whole piece for rich details about resiliency, preparedness, and grim efficiency of Boston's hospitals & people. P.S. BostInno's Lauren Landry summarizes activity from many of the hospitals. And Tim Murphy writes in Mother Jones How Bombs in Iraq Saved Lives in Boston.