TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 3, 7:44 AM EST
Kalshi
This event tracks whether a significant earthquake will occur on a specific date, measured by its magnitude as reported by a scientific authority. The outcome depends on whether any tremor reaches certain strength thresholds during a defined 24-hour window.
All markets resolve based on whether the highest magnitude earthquake reported worldwide by the USGS during September 3, 2026 (UTC midnight to midnight) meets or exceeds a specific threshold. The magnitude used is the USGS-reported value at expiration, with moment magnitude (Mw) taking precedence when available. If multiple earthquakes share the highest magnitude, all qualify. Settlement may be delayed if USGS ComCat data is unavailable at expiration. Each market corresponds to a different minimum magnitude requirement, ranging from 5.2 to 7.0, with higher thresholds representing increasingly rare seismic events.