TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 28, 9:16 AM EST
Polymarket
This market will resolve according to the total number of earthquakes with a magnitude of 5.5 or higher that occur anywhere on Earth between September 21, 2026, 12:00 AM ET and September 27, 2026, 11:59 PM ET. The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program, with the minimum magnitude set to 5.5 and the date parameters set to the relevant dates for this market's timeframe (https://earthquake.usgs.gov/earthquakes/search/). If an earthquake of substantial size has occurred within this market's timeframe but not yet appeared on the resolution source, this market may remain open until 48 hours after the market's closing time, or until the earthquake in question otherwise appears on the resolution source. If such an earthquake has not appeared on the resolution source by that time, this market will resolve according to the data published at that time. This market may not resolve until the timeframe of this market has concluded. If a qualifying earthquake has been recorded on the final day, this market may remain open for 24 hours to allow for revisions to the recorded magnitude. After 24 hours, this market will resolve according to the latest provided data. If no earthquake data for this market's timeframe has been published on the resolution source by 48 hours after the market's closing time, this market will resolve to the lowest bracket.
This market will resolve according to the total number of earthquakes with a magnitude of 5.5 or higher that occur anywhere on Earth between September 21, 2026, 12:00 AM ET and September 27, 2026, 11:59 PM ET. The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program, with the minimum magnitude set to 5.5 and the date parameters set to the relevant dates for this market's timeframe (https://earthquake.usgs.gov/earthquakes/search/). If an earthquake of substantial size has occurred within this market's timeframe but not yet appeared on the resolution source, this market may remain open until 48 hours after the market's closing time, or until the earthquake in question otherwise appears on the resolution source. If such an earthquake has not appeared on the resolution source by that time, this market will resolve according to the data published at that time. This market may not resolve until the timeframe of this market has concluded. If a qualifying earthquake has been recorded on the final day, this market may remain open for 24 hours to allow for revisions to the recorded magnitude. After 24 hours, this market will resolve according to the latest provided data. If no earthquake data for this market's timeframe has been published on the resolution source by 48 hours after the market's closing time, this market will resolve to the lowest bracket.
On Polymarket, this market is priced through a continuous double auction, meaning traders buy and sell shares representing their belief in each outcome. The price of a share directly reflects the implied probability of that outcome occurring. As more traders participate, the prices adjust to reflect the collective assessment of the likelihood of different earthquake counts. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price movements are driven by new information, shifts in sentiment, and the overall demand for shares in each possible outcome, creating a dynamic and responsive pricing mechanism.
This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The final count of earthquakes with a magnitude of 5.5 or higher occurring between September 21st and September 27th will be sourced from established earthquake monitoring agencies. The market will settle based on this verified count, determining which outcome – the number of qualifying earthquakes – is the accurate result. Traders will then be able to claim their winnings or fulfill their obligations based on the final outcome.
Several signals could significantly impact this market. A series of smaller earthquakes, or foreshocks, in known seismic zones might increase trader concern and shift probabilities towards a higher earthquake count. Conversely, a period of seismic quiet could lower expectations. Major geological reports or statements from seismologists about increased or decreased risk in specific regions could also influence trading activity. Finally, any unexpected large-scale natural disasters unrelated to earthquakes could potentially divert attention and impact volume, though the core driver remains earthquake activity during the specified timeframe.