Trader sentiment favors ≤6 magnitude 5.5+ earthquakes worldwide for September 21–27, reflecting USGS long-term averages of roughly 120 magnitude 6+ events annually alongside several hundred magnitude 5.5–5.9 quakes, yielding a typical weekly range near 6–10. Early-week observations show sparse activity, with only isolated magnitude 5.5 events such as the recent Indonesia shock and multiple 5.0–5.2 tremors in the Philippines, Chile, and Japan regions, consistent with background rates rather than swarm or aftershock sequences. Seismic monitoring by the USGS and global networks indicates no elevated clustering in the Pacific Ring of Fire or other high-activity zones at present, though short-term fluctuations remain possible before week’s end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHow many 5.5 or above earthquakes worldwide September 21 - September 27?
≤6 46%
8 14%
7 12%
10 10%

≤6
46%

7
12%

8
14%

9
7%

10
10%

11
6%

12
6%

13
6%

more than 13
6%
≤6 46%
8 14%
7 12%
10 10%

≤6
46%

7
12%

8
14%

9
7%

10
10%

11
6%

12
6%

13
6%

more than 13
6%
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.
Market Opened: Sep 18, 2026, 11:30 AM ET
Resolution Source
https://earthquake.usgs.gov/earthquakes/search/Resolver
0x69c47De9D...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.
Resolution Source
https://earthquake.usgs.gov/earthquakes/search/Resolver
0x69c47De9D...Trader sentiment favors ≤6 magnitude 5.5+ earthquakes worldwide for September 21–27, reflecting USGS long-term averages of roughly 120 magnitude 6+ events annually alongside several hundred magnitude 5.5–5.9 quakes, yielding a typical weekly range near 6–10. Early-week observations show sparse activity, with only isolated magnitude 5.5 events such as the recent Indonesia shock and multiple 5.0–5.2 tremors in the Philippines, Chile, and Japan regions, consistent with background rates rather than swarm or aftershock sequences. Seismic monitoring by the USGS and global networks indicates no elevated clustering in the Pacific Ring of Fire or other high-activity zones at present, though short-term fluctuations remain possible before week’s end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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