What will the biggest earthquake be on October 19, 2026?
Polymarket·Climate and Weather·ends Oct 20, 2026
As of 09:25 UTC on 18 Oct 2026, “6.1 or more” leads “What will the biggest earthquake be on October 19, 2026?” on Polymarket at 24%, followed by “5.5 to 5.6” at 17% and “Under 5.3” at 16% (+1pp in 24h), out of 6 outcomes. The event has $20 in Polymarket-reported 24-hour volume. pdata.world compares it with 23 related events on Polymarket, Kalshi and Gemini.
vol cum
$20
vol 24h
$20
outcomes
6
ends
Oct 20, 2026
outcomesclick to inspect →
showing 5 of 6
WeatherEarthquakesHide From New
marketselected outcome
6.1 or more
rank #1
24¢
· 0.0pp
24h change
vol cum
$0
vol 24h
$0
spread
0.02
ends
Oct 20, 2026
This market will resolve to the bracket containing the magnitude of the largest earthquake recorded globally on October 19, 2026, as reported by the USGS Earthquake Catalog.
Brackets: Under 5.3 / 5.3 to 5.4 / 5.5 to 5.6 / 5.7 to 5.8 / 5.9 to 6.0 / 6.1 or more. Exactly one bracket resolves "Yes".
The observation period is the UTC calendar day: 00:00 UTC to 23:59 UTC on October 19, 2026. An earthquake is assigned to the day containing its origin time.
Magnitude refers to the USGS preferred magnitude value, listed under 'Magnitude' in the format column.
If USGS revises a magnitude after initial publication, the revision governs provided it is published before 2:00 PM ET on October 20, 2026. A value first published after that time is not considered.
If the reported magnitude carries more than one decimal place, it is rounded to the nearest tenth using standard rounding conventions (0.05 rounds up). Brackets are inclusive of their stated endpoints.
If no earthquake data for October 19, 2026 has been published by 2:00 PM ET on October 20, 2026, this market will resolve to the "Under 5.3" bracket.
The resolution source for this market is the USGS Earthquake Catalog, maintained by the United States Geological Survey, at https://earthquake.usgs.gov/earthquakes/search/.
