**Recent global seismic data show typical background rates for M5.5+ events, with roughly 8–12 such quakes occurring in an average week worldwide.** USGS and EMSC archives indicate M5–5.9 earthquakes average around 1,300–1,900 annually, translating to a weekly M5.5+ baseline near 8–10 when accounting for magnitude distribution and aftershock contributions. Trader sentiment reflects this central tendency plus short-term Poisson variability, as the closely matched probabilities (≤6 at 22%, 7 at 13%, 8 at 11.5%) capture uncertainty around the mean rather than any pronounced trend. Early September 2026 activity included scattered M5.5–6.3 events in the Solomon Islands, Vanuatu, Alaska, and Mexico, consistent with Ring of Fire norms and without evidence of elevated clustering or quiescence. No major new forecasts, model shifts, or triggering factors (such as recent large mainshocks) have altered expectations for the Sept 7–13 window. Resolution hinges on official USGS counts of confirmed M≥5.5 events in that exact seven-day UTC period, where aftershock sequences or independent tectonic releases could push counts higher or lower within normal statistical bounds.
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 7 - September 13?
≤6 22%
7 13%
more than 13 12%
8 12%

≤6
22%

7
13%

8
12%

9
11%

10
10%

11
11%

12
7%

13
8%

more than 13
12%
≤6 22%
7 13%
more than 13 12%
8 12%

≤6
22%

7
13%

8
12%

9
11%

10
10%

11
11%

12
7%

13
8%

more than 13
12%
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 4, 2026, 2:44 PM 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...**Recent global seismic data show typical background rates for M5.5+ events, with roughly 8–12 such quakes occurring in an average week worldwide.** USGS and EMSC archives indicate M5–5.9 earthquakes average around 1,300–1,900 annually, translating to a weekly M5.5+ baseline near 8–10 when accounting for magnitude distribution and aftershock contributions. Trader sentiment reflects this central tendency plus short-term Poisson variability, as the closely matched probabilities (≤6 at 22%, 7 at 13%, 8 at 11.5%) capture uncertainty around the mean rather than any pronounced trend. Early September 2026 activity included scattered M5.5–6.3 events in the Solomon Islands, Vanuatu, Alaska, and Mexico, consistent with Ring of Fire norms and without evidence of elevated clustering or quiescence. No major new forecasts, model shifts, or triggering factors (such as recent large mainshocks) have altered expectations for the Sept 7–13 window. Resolution hinges on official USGS counts of confirmed M≥5.5 events in that exact seven-day UTC period, where aftershock sequences or independent tectonic releases could push counts higher or lower within normal statistical bounds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions