Trade: Another 7.0 or above earthquake by...?

Market context

The market is pricing the likelihood that at least one earthquake measuring 7.0 magnitude or greater will occur anywhere on Earth between now and 31 May 2026. The current order book on Polymarket reflects a 100% implied probability, meaning traders are pricing this as virtually certain to occur within the settlement window. This assessment spans approximately 18 months from typical market creation.

Historically, magnitude 7.0+ earthquakes occur with considerable regularity. The USGS records roughly 15 earthquakes of this magnitude annually on average, though with substantial year-to-year variation. The 2004 Indian Ocean earthquake (9.1), 2011 Tōhoku earthquake (9.0), and 2010 Canterbury earthquake sequence demonstrate that major seismic events cluster unpredictably across regions. Over any 18-month period in recent decades, the probability of at least one 7.0+ event has consistently exceeded 95%, which aligns with the current market pricing reflecting near-certainty.

Traders monitoring this market should track USGS earthquake notifications and the Significant Earthquakes database, which serves as the official resolution source. Seismic activity itself cannot be predicted with meaningful precision, though certain regions—the Pacific Ring of Fire, subduction zones in Japan and Chile, and transform boundaries—experience elevated activity. The resolution mechanism includes a grace period extending to the end of the month following the official settlement date, allowing time for USGS data processing. The 100% probability reflects the statistical baseline rather than any specific imminent event; traders should consider whether tail-risk scenarios (an unusually quiet 18-month period) warrant contrarian positioning.

How this market resolves

Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.

How to trade this market step by step

The mechanics for trading "Another 7.0 or above earthquake by...?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.

1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
3. Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
4. Size your position. If you stake 100 USDC at 50% YES, you'll receive shares that pay $200 if YES resolves true — a 100% gross return. If NO resolves, your shares are worth $0.
5. Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
6. Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.

How active is this market?

$102K in lifetime turnover and $0 of resting liquidity puts this market in the top 30% by volume for natural disasters contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.

The market has been open for around a month — fresh enough that information asymmetry remains a real factor.

Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.

Key terms

YES / NO share

A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.

CLOB

Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.

Liquidity

USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.

UMA optimistic oracle

The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.

Slippage

The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.

Conditional token

ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.

See the full prediction-market glossary →

Frequently asked questions

Risk and regulatory note

Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.

Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.

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