M5.5+ Earthquake Count July 6-12: Market Splits on Eight

The global seismic network records M5.5 or greater earthquakes with near-perfect reliability. What it cannot do is predict them. That forecasting gap is exactly what this market trades. The ≤8 outcome sits at 40.5% implied probability, meaning traders currently believe a lower-count week is the less likely outcome than hitting nine or more events before July 12.

The market asks: how many earthquakes measuring 5.5 or above will the USGS seismic network record between July 6 and July 12, 2026? The ≤8 outcome is priced at $0.41 YES and $0.60 NO. Eight or fewer events resolves YES. Nine or more events resolves NO on this leg of the market, with separate contracts covering 9, 10, 11, 12, 13, 14, and greater than 14. Total market volume stands at $2,680 as of July 6, 2026, with the window closing July 12 at 23:59 UTC.

How the ≤8 Contract Works

The USGS Earthquake Hazards Program serves as the effective data source for resolution. Every M5.5 or greater event recorded in the global catalog between July 6 and July 12 counts toward the final tally. The contract resolves YES if the total is eight or fewer, NO if the count reaches nine or above.

• YES ($0.41, implied 40.5%): Eight or fewer M5.5+ earthquakes recorded globally by USGS during the July 6-12 window.
• NO ($0.60, implied 59.5%): Nine or more M5.5+ earthquakes recorded during the same period.

The NO side pays out when global seismicity runs at or above a pace of roughly 1.3 events per day. Historically, the USGS catalog logs between 10 and 20 M5.5+ earthquakes per week globally, depending on tectonic activity patterns. A week landing at eight or fewer would represent a notably quiet stretch. Traders appear to be pricing that historical base rate directly.

Momentum and Market Signals

Sponsored Partner

The combined momentum signal is choppy. The ≤8 contract dropped 1.5% in the last hour after a 8.0% gain over the prior 24 hours, with a trend score of 31.35. That pattern suggests early-week positioning responding to actual seismic data as events accumulate in the July 6-12 window. The intraday reversal on July 6 reflected real-time catalog updates, not speculative sentiment shifts.

Total volume is $2,680, with $2,201 of that trading in the last 24 hours. That concentration means nearly all activity is fresh and reactive. Liquidity sits at $38,982, which is relatively healthy for a short-duration science market, but total volume well below $1 million means a single meaningful bet could move this price sharply before resolution.

• The 24-hour gain of 8.0% combined with the 1-hour drop of 1.5% points to active repositioning as early-week earthquake counts come in. This is the primary driver.
• Trend score of 31.35 reflects weak directional conviction. Neither side has locked in a strong narrative yet.
• Volume concentration in the last 24 hours (82% of total) confirms traders are watching the USGS catalog in near real-time.
• Liquidity of $38,982 supports orderly price discovery, but thin total volume makes this contract susceptible to outsized moves from single positions.
• The NO side holds a 19-point probability edge, reflecting the historical frequency of weeks exceeding eight M5.5+ events globally.

Lines Analysis: What the Seismic Record Says

The USGS global catalog averages roughly 10 to 20 M5.5+ earthquakes per week in a typical period. Subduction zones in the Pacific Ring of Fire, particularly around Japan, Indonesia, Chile, and the Aleutians, generate the bulk of qualifying events. A week capping at eight requires either an unusually quiet Ring of Fire or a stretch where several borderline events fall just below the 5.5 threshold. The historical base rate alone justifies the NO side holding a majority probability.

The YES side becomes viable when tectonic activity enters a genuine lull. These lulls happen. They are not rare enough to be considered anomalies, but they require multiple seismic regions to quiet simultaneously. A single major aftershock sequence in an active zone can push a week from seven events to twelve within hours. That asymmetry works against the ≤8 outcome.

• USGS catalog updates: every new M5.5+ event recorded before July 12 directly reduces the probability of ≤8 resolving YES. Track the real-time feed.
• Pacific Ring of Fire activity: elevated seismicity in Indonesia, Japan, or Chile this week would effectively price ≤8 out of contention.
• Aftershock sequences: any M6.5+ earthquake recorded during the window will likely generate qualifying aftershocks, compounding the count quickly.
• Mid-week count: if the USGS catalog shows five or fewer events by July 9, the YES probability should reprice upward significantly.
• Resolution source confirmation: the market resolves on reported USGS data, so any catalog revisions before close date could affect final count.

Total volume of $2,680 is thin. The data favors the NO side based on historical seismicity rates, but the market is genuinely pricing uncertainty, not an obvious mismatch. If the first three days of the window stay quiet, the ≤8 contract will move fast.

Historical Rate Favors Higher Count

The base rate for global M5.5+ seismicity makes weeks of eight or fewer events the minority outcome. The NO side is correctly priced as the higher-probability leg.

What the market says: At 40.5% implied probability, the ≤8 outcome is treated as plausible but not likely. Thin volume means this price is fragile. As the July 12 resolution deadline approaches and the USGS count accumulates, expect sharp repricing in either direction.

Key unknown: The USGS real-time catalog through July 9 is the single most important data source. A mid-week count of five or fewer events would dramatically reprice this market toward YES before the window closes.