What if a great earthquake hits Chile's copper belt?
Chile and Peru mine about a third of the world's copper. Past quakes stopped mines for hours or days — but structural damage has no modern analog. Model the harder case explicitly.
1The setup
Chile produces roughly a quarter of the world's mined copper — about a third together with Peru — and 18.0% of world copper exports ship from Chile (2024 vintage). The subduction zone off its coast has delivered three measured shocks: the 2010 Maule quake (M8.8) shut mines holding ~20% of Chile's output and COMEX copper jumped 9.25¢/lb before mines restarted within days; the 2007 Tocopilla quake (M7.7) spiked copper 6.29% intraday; 2015's Illapel (M8.3) added 1.1%. The pattern is consistent: even great quakes interrupted output for hours to days, and the price spikes faded. A quake that damages a concentrator or a tailings dam would be outside the modern analog set — the top magnitude band models that case on purpose. The dial covers Chile's exports; Peru's mines sit in the same seismic belt but outside the monitor's exporter data.
Market check · Polymarket
What the market thinks
Where will a 6.0+ magnitude earthquake occur by end of September?
Polymarket · live contract
22%
implied chance of “Yes” on a 6.0+ magnitude earthquake occur in Chile this month…
The market says 22% — think the real chance is higher or lower? Take a side and we'll track your call against the live market as it moves.
Your take lives on this device only. Illustrative — not a bet, not advice.
Closest live contract — whether a 6.0+ quake hits Chile within the calendar month, on a monthly clock. It is not a forecast of a great (M8+) earthquake, and it is not a contract on copper prices. Thin market — few traders; small bets move these odds.
›5 stories point to tighter supply this week (5 of 43 headlines)
›El Nino pattern in the Pacific (ONI +1.80, JJA 2026) — shifts rainfall in growing regions
Monitor data as of Sep 24, 2026. Scores are observed readings, not forecasts.
How the shock travels
Mine output
Quakes stop mines through power outages and safety inspections: the 2010 M8.8 shut mines holding ~20% of Chile's output, and 2015's M8.3 idled ~2.2 Mt of capacity — all restarted within days.
Evidence: USGS event pages + Cochilco monthly output (2010, 2015) — mines restarted within days of M8.8 and M8.3 shocks
LME copper price
Even great quakes moved copper briefly: COMEX jumped 9.25¢/lb in 2010, 6.29% intraday in 2007, 1.1% in 2015 — each faded as mines restarted.
Port closures and road damage can delay concentrate shipments for days; Chile's coastal mines ship through quake-exposed ports.
Evidence: 2010 reporting — outages, not building damage, stopped the mines; ports reopened with the grid
Caveat: No measured modern analog for port-outage duration at Chilean copper ports — this channel is the least evidenced
3The exposure
DR Congo
20.4%
Chile
18.0%
Japan
7.1%
China
4.6%
Kazakhstan
4.3%
Share of global export value (USD) — 2024 vintage. Amber = the scenario focus. Ranked by share.
How the shock travels
Follow the shock downstream — from the copper market, through processors, to the shelf. These are the usual stages, not this scenario's outcome: exposure at each step, never a prediction.
Day 0: copper futures spike
timing not established
Lag basis: lag not established in sources reviewed
copper cathodecopper concentratescrap
Freeport-McMoRan
FCX
Copper producer; its 2024 Form 10-K states it is 'one of the world's largest publicly traded copper producers' with mines in the US, Indonesia and South America
Lag basis: lag not established in sources reviewed
power cablesbuilding wirewiring harnesses
Nexans
NEX.PA
Cable systems maker; describes itself as a leader in the design and manufacturing of cable systems and reports sales at a standard copper price of €5,000/ton to neutralize copper price fluctuations
Lag basis: lag not established in sources reviewed
electric vehiclesmotorselectronicshome wiring
Tesla
TSLA
EV maker; Reuters reporting notes new Tesla and rival EVs use up to 80 kg of copper per vehicle, four times the amount in a typical combustion-engine vehicle
via Antofagasta / Mejillones ports (no single chokepoint)
No single corridor — share not applicable — Chilean copper loads at Antofagasta / Mejillones Pacific ports; no single chokepoint. No route share applies -- this is not missing research.
How we map this
Exporter and importer shares are 2024 vintage · annual data, 1–2y lag from UN Comtrade and OEC (BACI/CEPII); an importer counts as exposed when ≥20% of its copper imports come from a shocked exporter. The shock geography is the scenario’s own focus selection. Annual data with a 1–2 year reporting lag — the structure moves slowly, the prices don’t.
In a famous portfolio
ARK Innovation ETF
2026-09-1742 holdings
daily holdings disclosure · published 2026-09-17
1 of 42
disclosed holding sits in copper’s curated shock path.
Mapped to our current coverage — not total portfolio risk.
TESLA INC
#1 holdingTSLA
EV maker; Reuters reporting notes new Tesla and rival EVs use up to 80 kg of copper per vehicle, four times the amount in a typical combustion-engine vehicle
Holdings: ARK Innovation ETF 2026-09-17 daily holdings disclosure, published 2026-09-17 — ARK Invest daily holdings (CSV). ARK publishes its full holdings daily. Figures are from the file dated September 17, 2026. Four disclosed positions without a listed ticker are excluded from the mapping. We map only to companies with curated, sourced exposures — a holding absent here is not a claim of no exposure.
4Adjust the assumptions
Earthquake magnitudeM8.0–8.4
Historical check: No copper episode on record — no historical range to compare this setting against.
What share of Chile’s copper exports is disrupted.
Resolution: Moment magnitude reported by the USGS
Share of world exports
0%50%100% of world exports
Chile copper — 18.0% of world Copper exports (Share of global export value (USD) — 2024 vintage)
Exposed under your assumptions: 6.3% (18.0% × 35% severity)
The hatched area is modeled from your assumptions, not a measured outcome.
Exposed ≠ lost — affected trade can reroute, draw stocks, or substitute. This sizes the exposure, not the damage.
30d
Historical check: No copper episode on record — no historical range to compare this setting against.
Resolution: Days until Chilean mine output returns to pre-quake levels (Cochilco monthly reports)
60d
Your assumption — not a measured buffer.
Resolution: Assumed days of stockpile cover — an assumption, not a measured buffer
Disruption timeline
090180270365 days
Disruption: 30 days
Assumed cover: 60 days — your assumptionYour assumption
Covered by stockpiles— the assumed cover outlasts the disruption
What this would have meant
At these settings, about 6.3% of the world's copper exports would be exposed to the disruption, and the 60-day assumed stockpile cover outlasts the 30-day disruption.
No close historical match in our records — this scenario is outside our recorded experience.