Earthquake Calculation Formula Shift?

[Flashlight237]

Okay, so I looked into Earthquakes a little. I was trying to find where the floop our third earthquake energy formula (listed as "Others") and... Well, I came across this formula:

Earthquake Magnitude, Energy Release, and Shaking Intensity

Earthquake magnitude, energy release, and shaking intensity are all related measurements of an earthquake that are often confused with one another. Their dependencies and relationships can be complicated, and even one of these concepts alone can be confusing.Here we'll look at each of these, as...

www.usgs.gov

The formula is backed up through these sources: https://storymd.com/journal/vm9nxe4...agnitude-energy-release-and-shaking-intensity
https://journals.le.ac.uk/index.php/pst/article/download/4543/3842/15055 (University of Leicester; tells you the energy unit used)

The formula is as follows:

log E= 5.24+1.44Mw; with Mw being the moment magnitude of the earthquake, and E being the energy in joules.

The reason why I'm proposing this formula is while our old formula is a little hard to come by if you want a citation, the formula I'm proposing gives us an actual, readily available citation. How does it work? Let's take my Soul Calibur calc here: https://vsbattles.fandom.com/wiki/U...oul_Calibur_Calcs:_Fixing_Some_Scaling_Issues

The mid end, using Magnitude 5.5 as a baseline, which led to a result of Magnitude 12.1352552813. Using our current formula, we got this:

10^(1.5*12.1352552813+4.8)=10^23.00288292=1.006660255*10^23 joules

Using the formula that is more readily available, on the other hand, I instead get this:

5.24+1.44*12.1352552813=22.71472441
10^22.71472441=5.184709228*10^22 joules

While it would shake up Earthquake calcs, the main goal here is to provide a more easily-available formula than the one we already have.

So yeah, there you have it.

 

[KLOL506]

@DontTalkDT @Executor_N0

 

[Kachon123]

While it would shake up Earthquake calcs, the main goal here is to provide a more easily-available formula than the one we already have.

The current formula is one derived from the data from this

Wayback Machine

Wayback Machine

If all you're looking for a easy to find source then I doubt you're going to get one because formulas like these often come from a bunch of different places. Otherwise, is there anything in specific that makes the proposed formula more favorable over the one currently used?

 

[DontTalkDT]

Maybe I understand the proposal wrong, but it seems to me that you're confusing richter magnitude and moment magnitude. Those two things are not interchangeable.
Our Earthquake formulas give us the Richter magnitude of Earthquakes. You can't plug that into a formula for moment magnitude.
(Also not sure why we would even change the formula when it actually exists...)

 

[Arkenis]

Just googled moment mags, apparently its more reliable for larger earthquakes.

 

[DontTalkDT]

Just googled moment mags, apparently its more reliable for larger earthquakes.

It's more modern. Problem is that you actually need to get the moment magnitude of an earthquake somehow to calculate energy with it. Our formulas don't get you that.
The formulas that do get you that, meanwhile, typically require parameters we generally just don't have for our fictional calcs.
Like the moment magnitude may be calculated over the seismic moment, but the seismic moment is defined by three numbers from which we, at best, realistically have one.

Edit: And then there's the thing where moment magnitude based energy quantification usually takes the whole energy of the earthquake, by nature of the definition of seismic moment, rather than just the energy of the shaking. The whole methology is only suitable for real earthquakes involving continental plates.