Magnitude 7.8 earthquake strikes in Indonesia, sparking tsunami alert

Seems like most are up to 10’, but the really severe ones can apparently be over 100’. 10’ may not sound like much, but water is ***heavy*** and the total volume can be devastating. For reference, the levees breaking in New Orleans following Katrina brought 15-20’ of flooding. A 100’ tall wave is just unthinkable to me and would be utterly cataclysmic.

In 2004 they were hit with waves over 100 feet tall. Having said that, the height is only one factor, the volume of water is generally the bigger issue. It's not just *a big wave* but a continuous inland flow, that one wave keeps going and going destroying everything in its path.

And recently, there was an earthquake in Cuba. Coincidence? I think not. Ha!

If a doomsday fish swam up to me and tapped me on the shoulder I'd say "Yeah yeah buddy, I already know."

What is a doomsday fish?

dang neighbors parking in their house again

Subduction zone earthquakes are capable of getting much larger in scale and causing more damage because it's one plate sliding underneath another one. The San Andres though is two plates rubbing against each other, which causes much less tension.

This explains it better than I could. https://en.wikipedia.org/wiki/Megathrust_earthquake?wprov=sfti1# You can also use that pages links to learn the difference between thrust faults (which are mostly subduction based), normal faults and strike slip like the San Andreas fault is. There are pictures on the pages for thrust faults which shows the mechanism and on the strike-slip fault page as well.

Hollywood movies like to scare the heck out of us

I live on the opposite side of the country and even I’m terrified about cascadia. I suppose someone living out that way won’t have much to worry about when it does hit. Everyone else, though, will feel the repercussions.

It might depend on where and when in Oregon they grew up? I know somebody who grew up on the west side in the '80s and they were not aware of it at the time, but in the last couple decades all the towns along the coast have been plastered with "tsunami evacuation route" signs and they've all got warning sirens which would go off if there were an earthquake. (Oregon's Pacific coast is susceptible to tsunamis if there would be an earthquake on the Cascadia zone or even in some parts of Alaska.) For direct earthquake damage, Portland would be in a particularly rough spot since they have so many bridges across the Willamette and Columbia Rivers. Folks I knew in western Washington who grew up in the '90s and later did duck-and-cover earthquake drills. There were significant quakes in the area in 1965 and 2001 so the possibility has been kept in people's minds. In particular, much of Seattle is built on glacial till and fill dirt so the soil would undergo "liquefaction" (yes, that's as bad as it sounds) in a bad enough earthquake in the wrong location. I could imagine that people on the east side of both states would be less aware of earthquakes in general since the risk is much lower.

You hush your mouth! We certainly don't need that added to whatever this summer is going to bring 

yeah I really hope that one doesn't happen....

That's the Japan one, right? Edit: That's

The 89 quake shook me up pretty good. Working in a highrise down town. Under my desk, holding on with both hands, talking to Jesus.

Thanks! That was a good read.

Glances out window *Shhhh not yet please*

I am from Kansas, we are under constanttornado watch from March to September

BYU/LDS with the religious respectability complaining