Seismic activity worldwide remains at moderate levels as of September 22, 2026, with the strongest recent events including a magnitude 6.4 quake near Kainantu, Papua New Guinea on September 20 and magnitude 6.5 events in Alaska and Indonesia earlier in the month, according to USGS data. Global earthquakes follow plate tectonics along boundaries like the Pacific Ring of Fire, where most large-magnitude releases occur, though precise short-term forecasting is not possible due to inherent variability in fault stress accumulation and rupture dynamics. With only eight days until September 30, the likelihood of an extreme event exceeding recent peaks depends on ongoing monitoring of aftershock sequences and any new M6+ detections, which USGS reports update continuously. Trader consensus in this market aggregates real-capital assessments of these low-probability but high-impact scenarios against historical baselines of several M7+ quakes annually.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHow strong of an earthquake will occur worldwide by September 30?
$14,366 Vol.
6.5+
100%
7.0+
31%
7.5+
14%
8.0+
3%
8.5+
1%
9.0+
<1%
$14,366 Vol.
6.5+
100%
7.0+
31%
7.5+
14%
8.0+
3%
8.5+
1%
9.0+
<1%
A qualifying earthquake must be listed by USGS with a preferred magnitude equal to or above the threshold listed in the option's title and listed as occurring within the specified timeframe. Earthquakes without a preferred magnitude classification will not qualify.
If an earthquake with an origin time within this market's window has not yet appeared on the resolution source by the end of the third calendar day after September 30, 2026 11:59:59 PM ET, this market end date may be extended for up to one week after September 30, 2026 11:59:59 PM ET and will resolve based on the first preferred magnitude and timestamp of the event in question. If the relevant data is not released by the end of the extension period, this market will resolve based on the data released up until that point.
Revisions to the underlying data, such as the preferred magnitude, will be considered until the end of the third calendar day after September 30, 2026 11:59:59 PM ET or until the end of an applicable extension period. Revisions made after the end of the third calendar day after September 30, 2026 11:59:59 PM ET or after the end of an applicable extension period will not be considered.
The resolution source for this event is the United States Geological Survey (USGS) Earthquake Hazards Program earthquake catalog (https://earthquake.usgs.gov/earthquakes/search/), and only data released by USGS will be considered, regardless of other sources. If the resolution source becomes temporarily unavailable, the market will remain open until it resumes; if it remains unavailable through the end of the third calendar day after September 30, 2026 11:59:59 PM ET, this market will resolve to "No."
Market Opened: Aug 17, 2026, 2:01 PM ET
Resolution Source
https://earthquake.usgs.gov/earthquakes/search/Resolver
0x65070BE91...A qualifying earthquake must be listed by USGS with a preferred magnitude equal to or above the threshold listed in the option's title and listed as occurring within the specified timeframe. Earthquakes without a preferred magnitude classification will not qualify.
If an earthquake with an origin time within this market's window has not yet appeared on the resolution source by the end of the third calendar day after September 30, 2026 11:59:59 PM ET, this market end date may be extended for up to one week after September 30, 2026 11:59:59 PM ET and will resolve based on the first preferred magnitude and timestamp of the event in question. If the relevant data is not released by the end of the extension period, this market will resolve based on the data released up until that point.
Revisions to the underlying data, such as the preferred magnitude, will be considered until the end of the third calendar day after September 30, 2026 11:59:59 PM ET or until the end of an applicable extension period. Revisions made after the end of the third calendar day after September 30, 2026 11:59:59 PM ET or after the end of an applicable extension period will not be considered.
The resolution source for this event is the United States Geological Survey (USGS) Earthquake Hazards Program earthquake catalog (https://earthquake.usgs.gov/earthquakes/search/), and only data released by USGS will be considered, regardless of other sources. If the resolution source becomes temporarily unavailable, the market will remain open until it resumes; if it remains unavailable through the end of the third calendar day after September 30, 2026 11:59:59 PM ET, this market will resolve to "No."
Resolution Source
https://earthquake.usgs.gov/earthquakes/search/Resolver
0x65070BE91...Seismic activity worldwide remains at moderate levels as of September 22, 2026, with the strongest recent events including a magnitude 6.4 quake near Kainantu, Papua New Guinea on September 20 and magnitude 6.5 events in Alaska and Indonesia earlier in the month, according to USGS data. Global earthquakes follow plate tectonics along boundaries like the Pacific Ring of Fire, where most large-magnitude releases occur, though precise short-term forecasting is not possible due to inherent variability in fault stress accumulation and rupture dynamics. With only eight days until September 30, the likelihood of an extreme event exceeding recent peaks depends on ongoing monitoring of aftershock sequences and any new M6+ detections, which USGS reports update continuously. Trader consensus in this market aggregates real-capital assessments of these low-probability but high-impact scenarios against historical baselines of several M7+ quakes annually.
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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