It’s Not My Fault!

The title is a joke by the way. If you still don’t get it, fret not. You see, I’ll be talking about faults. Not my faults, but actual faults that riddle the crust like a plague. Yes, I’m talking about those earthquake-causing cracks in the ground that, more often than not, causes us inconveniences every now and then, and that’s me being nice. Anyway, what I wanted to show you is this simple chart that shows the distinct types of faults and some examples for each. Hope you like it because I put effort into making it. I mean, look at it. It has color and all.

So, what are faults to begin with? Are they really just cracks in the ground? Well, yes and no. Hear me out. Yes, they are cracks in the ground. But, no, since that’s not all there is to them. Remember that the crust is made up of tectonic plates, and the thing is, they’re not stationary. Because of the lower layer, the mantle, the plates are constantly moving, therefore somewhere along the line, cracks started to form. Those cracks are the faults I was talking about and they are constantly shifting. Now, how they shift is what differentiates each fault and is why we have about three types of faults to work with here.

So, the first type of fault is called a normal fault. Whether or not that this is the default, this type of fault forms when the upper wall, otherwise known as the hanging wall, is moving down with respects to the foot wall. Some examples of normal faults are the Atalanti Fault and Corinth Rift, which are both located in Greece. Now, take the reverse of a normal, and you have a, well, reverse fault. Pretty simple naming convention, huh? Anyway, a reverse fault, this time, is when the foot wall is moving down, causing the hanging wall to bulge upwards. The Sierra Madre Fault Line located in Southern California and the Glarus Thrust are both examples of this type of fault. By the way, if the incline of the foot wall is a gentle slope, the reverse fault created is then called a thrust fault. Finally, the third type of fault is called the strike-slip fault, and from the name, they are formed when two plates continually slide against each other. Locally, we have the Marikina Valley Fault System as an example. There’s also the famous San Andreas Fault, as well.

So, there you have it. To be honest, I retract what I said about the title of this post. I think it’s a perfect description of what faults really are, since Mother Earth can’t really do anything about its tectonic plates from moving and cracking itself up. Yes, it’s the reason why we have earthquakes but hey, we can’t blame Mother Earth for that. There’s a reason why earthquakes are called natural disaster, emphasizing the “natural” part. So, just pray that the roof on top of you is strong enough to withstand the tremors.

Your boy,

Seth Martin


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