A-TIER technique
Omori's Law — earthquake aftershock math applied to market crashes
100k ft — What is this?
Omori's Law — earthquake aftershock math applied to market crashes
50k ft — Why care?
Applies geophysics' Omori's Law to financial markets. Post-crash volatility aftershocks decay at a predictable rate following power-law dynamics, not randomly. Shows March 2020 crash decay pattern. DM-bait for code repo.
10k ft — Key takeaways
• Post-crash vol decays by power law, not randomly
• Same math as earthquake aftershock prediction
• Can time post-crash mean reversion entries
5k ft — Tools & techniques
(no tools tagged)
Aftershock Modeling, Power Law Decay, Volatility Clustering
1k ft — Deep-dive / try it
Earthquakes and Market Crashes have one weird mathematical thing in common...
It’s called Omori’s Law. Originally used by geophysicists to predict the frequency of earthquake aftershocks, we can apply this directly to financial markets.
👇 Comment "Omori" below and I’ll DM you the free code repo to calculate decay rates for yourself.
When a major crash happens (like the March 2020 bottom shown here), the "aftershocks" of market volatility don't just disappear randomly. They decay at a highly predictable power-law rate (t⁻ᵖ).
If you look at the log-log scale at the end of the video, the event rate for different volatility thresholds (|r| > 0.5%, 1.0%, etc.) stabilizes into a clear downward slope.
The takeaway? Markets have a mathematical memory. Panic dissipates on a schedule.
dee…
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