Will California experience a 7.0 or above magnitude earthquake in 2026?
Probability
6¢
1h
+0.1pp
24h
-14.1pp
24h Vol
$2.8K
Liquidity
$1.1K
Canonical status
confidence: highSource status (Polymarket)
Derived status (Orrery)
Reason
Active market, expiry beyond the near-expiry window.
Resolution & Risk
LOW risk- End date
- Jan 1, 2027
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Probability (last 7 days)
+0.0pp 7dWhy did it move?
Structured · 2 factors- 01Price move
Down 14pp over 24h
Now 6¢; +0.1pp in the last hour.
- 02Liquidity
Thin liquidity
Only $1.1k of visible book — small orders can move the line. Treat the probability as a soft estimate.
What to track next
- Set an alert if probability recovers above 11¢ — that's where this move would be reversing.
- Add to your watchlist — Home will show probability deltas since your last visit.
- Compare against sibling markets in the same event below — divergent pricing across related contracts is the cleanest tell.
Verification actions only — never trade recommendations.
Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.
Resolution & Risk
LOW risk- End date
- Jan 1, 2027
- UMA status
- n/a
- Resolution source
- Market type
- Binary
- No obvious resolution-risk signals in metadata.
Verification Brief
A guided checklist for what must be proven before this market is treated as reliable context.
The market is live. Track source, liquidity, and wording before escalating it to a resolution-sensitive task.
Create trust-state alertVerification goal
Map resolution-relevant sources to the exact criteria needed to avoid misreading price as settlement.
What needs proof
Primary source
requiredConfirm the primary news consensus source and whether it directly answers the market's resolution question.
Current evidence: consensus of credible reporting
Contract wording
requiredExtract the exact condition that makes YES resolve true and note any exclusions, time zone, deadline, or fallback rule.
Orrery verification task Will California experience a 7.0 or above magnitude earthquake in 2026? State: Live — live monitoring Need sources for: 1. Primary source: Confirm the primary news consensus source and whether it directly answers the market's resolution question. 2. Contract wording: Extract the exact condition that makes YES resolve true and note any exclusions, time zone, deadline, or fallback rule. 3. Liquidity context: Check whether the move is supported by enough liquidity and volume to treat it as meaningful context. Drop only durable links that map to one criterion. Research only. Not trade advice.
Orrery verification brief Will California experience a 7.0 or above magnitude earthquake in 2026? State: live monitoring Verify: Primary source + Contract wording Price is not settlement. Research only. Not trade advice.
Market link goes in reply
A controlled loop for durable sources. Every source must answer one criterion from this Verification Brief.
Sources
0
Criteria covered
0
Reviewed
0
Awaiting review
0
Submit a source mapped to a criterion
Recent source checks
Pilot audit summary
Research only · Not trade advice · Every source maps to one criterion
Timeline
critical · price · trade flowCritical
- Jan 1, 04:59 UTCScheduled resolutionLOW
Market resolves in 3815.0h
Price movement
-14.1pp over the last 24h, now 6¢.
Recent Trades
No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.
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Market Description
This market will resolve "Yes" if the United States Geological Survey (USGS) (https://www.usgs.gov/programs/earthquake-hazards/lists-maps-and-statistics) reports at least one earthquake of moment magnitude (Mw) 7.0 or greater with an epicenter located within the state of California by December 31, 2026 at 11:59:59 PM ET. Otherwise, this market will resolve "No". The state of California includes the entirety of California as recognized under U.S. law including offshore areas within California's territorial boundaries. Earthquakes occurring on the California border must have their USGS-listed epicenter coordinates fall within California's boundaries. Any individual event meeting the magnitude and location criteria resolves the market "Yes", regardless of whether it is classified as a mainshock, aftershock, or foreshock. Resolution will be based on the USGS's final reviewed magnitude, not preliminary estimates, regardless of when that review is published, but the qualifying earthquake needs to have occurred within California by December 31, 2026 at 11:59:59 PM ET. This market will resolve based on official information from USGS, however, an overwhelming consensus of credible reporting confirming a qualifying earthquake may also resolve this market in an instance where USGS becomes unavailable.
Why this category?
confidence: highCategory
Source
Matched term
enceReason
Question text matched the sports hard-marker "ence" — runs before rules to catch upstream mis-tagging.
Categories come from a deterministic engine: manual overrides (highest priority) → sports hard markers → event-tag rules → keyword rules → Gamma category hint → default. The engine is versioned in category-overrides.ts; methodology lives at /methodology.
FAQ — questions readers actually ask
What is the current Polymarket probability for "Will California experience a 7.0 or above magnitude earthquake in 2026?"?
As of Sun, 26 Jul 2026 05:56:31 GMT, YES is priced at 6% implied probability on Polymarket. The price changed -14.1pp in the last 24 hours, +0.1pp in the last hour, and +0.0pp in the last 7 days.
When does this market resolve?
This market resolves by Jan 1, 2027 (2027-01-01T04:59:00.000Z). Resolution is determined from the market description on Polymarket.
What source determines the outcome?
Resolution is sourced from the market description on Polymarket. Polymarket's UMA optimistic oracle is the final settlement layer; if the published source is ambiguous, UMA tokenholders adjudicate. Source-extraction confidence is shown in the Resolution & Risk block above.
How much is being traded on this market?
$2.8K of trading volume in the last 24 hours. Lifetime volume on Polymarket: $2.9K. Open liquidity in the YES/NO orderbooks: $1.1K. Spread between best bid and best ask: 2.3¢.
Is this a trade recommendation?
No. Orrery describes — never predicts. Every signal on this market carries explicit Evidence, Backtest, and Action tiers. The Action is always one of: Watch only, Inspect timeline, Create alert, Verify source, or Ignore — never Buy or Sell. The probability above is the market's collective implied probability, not a forecast Orrery is publishing.
How fresh is this data and where does it come from?
This page revalidates from the public Polymarket APIs every 30 seconds. Probability and 24h-change come from Gamma; the chart series comes from the CLOB orderbook history; trade and holder data come from the Data API. The fetched-at timestamp on each block tells you exactly how old the underlying upstream pull was.
Alerts
In-app banners fire as soon as a rule is satisfied. Email digests are wired to a server-side cron and continue while your tabs are closed. Telegram and Discord are planned — every existing rule will keep working as channels light up.