No magnitude-8.0 or greater earthquake has occurred in 2026 through late August, with the year's maximum standing at 7.8 from the June Philippines event along the Cotabato Trench subduction zone and a 7.7 striking Indonesia's Flores region in mid-August. USGS data confirm roughly a dozen 7.0–7.9 events globally so far, consistent with historical averages of about one 8+ quake annually worldwide. Subduction-zone megathrusts capable of higher magnitudes remain the primary geologic settings, yet the absence of an 8+ event midway through the year, combined with typical variability in rupture timing and size, underpins the dominant 74.5% market-implied odds for a 7.9 ceiling. Remaining months introduce forecast uncertainty, as new USGS monitoring and model updates could shift probabilities if strain accumulation accelerates.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest earthquake magnitude in 2026?
Highest earthquake magnitude in 2026?
7.9 or below 75%
8.0 – 8.1 9%
8.2 – 8.3 9%
8.6 – 8.7 5%
NEW
NEW
Jan 3, 2027
7.9 or below
75%
8.0 – 8.1
9%
8.2 – 8.3
9%
8.4 – 8.5
4%
8.6 – 8.7
5%
8.8 – 8.9
4%
9.0 or above
4%
7.9 or below 75%
8.0 – 8.1 9%
8.2 – 8.3 9%
8.6 – 8.7 5%
NEW
NEW
Jan 3, 2027
7.9 or below
$1,816 Vol.
75%
8.0 – 8.1
$75 Vol.
9%
8.2 – 8.3
$174 Vol.
9%
8.4 – 8.5
$59 Vol.
4%
8.6 – 8.7
$163 Vol.
5%
8.8 – 8.9
$59 Vol.
4%
9.0 or above
$46 Vol.
4%
This market will resolve based on the USGS preferred magnitude of the largest (highest-magnitude) earthquake to occur anywhere on Earth between January 1, 2026, 12:00:00 AM ET and December 31, 2026, 11:59:59 PM ET. The "7.9 or below" bracket covers any case in which the highest-magnitude earthquake during this market's timeframe is below 8.0, including the magnitude 7.8 already recorded in 2026 and any lower value.
The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program (https://earthquake.usgs.gov/earthquakes/search/). Magnitude is measured to one decimal place (e.g., 7.9). The USGS preferred magnitude at the end of this market's open period governs; later revisions do not reopen or change this market's resolution.
An extension period extends this market's close from January 3, 2027, 11:59:59 PM ET to as late as January 7, 2027, 11:59:59 PM ET, and applies when a qualifying earthquake has occurred within this market's timeframe but the USGS has not yet published or finalized its preferred magnitude. This additional time allows the reported magnitude to be finalized before this market resolves.
This market will remain open until January 3, 2027, 11:59:59 PM ET, or until January 7, 2027, 11:59:59 PM ET if the extension period applies. If a qualifying earthquake has occurred within this market's timeframe but has not yet appeared on the resolution source by the end of that period, another credible resolution source will be used.No magnitude-8.0 or greater earthquake has occurred in 2026 through late August, with the year's maximum standing at 7.8 from the June Philippines event along the Cotabato Trench subduction zone and a 7.7 striking Indonesia's Flores region in mid-August. USGS data confirm roughly a dozen 7.0–7.9 events globally so far, consistent with historical averages of about one 8+ quake annually worldwide. Subduction-zone megathrusts capable of higher magnitudes remain the primary geologic settings, yet the absence of an 8+ event midway through the year, combined with typical variability in rupture timing and size, underpins the dominant 74.5% market-implied odds for a 7.9 ceiling. Remaining months introduce forecast uncertainty, as new USGS monitoring and model updates could shift probabilities if strain accumulation accelerates.
This market will resolve based on the USGS preferred magnitude of the largest (highest-magnitude) earthquake to occur anywhere on Earth between January 1, 2026, 12:00:00 AM ET and December 31, 2026, 11:59:59 PM ET. The "7.9 or below" bracket covers any case in which the highest-magnitude earthquake during this market's timeframe is below 8.0, including the magnitude 7.8 already recorded in 2026 and any lower value.
The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program (https://earthquake.usgs.gov/earthquakes/search/). Magnitude is measured to one decimal place (e.g., 7.9). The USGS preferred magnitude at the end of this market's open period governs; later revisions do not reopen or change this market's resolution.
An extension period extends this market's close from January 3, 2027, 11:59:59 PM ET to as late as January 7, 2027, 11:59:59 PM ET, and applies when a qualifying earthquake has occurred within this market's timeframe but the USGS has not yet published or finalized its preferred magnitude. This additional time allows the reported magnitude to be finalized before this market resolves.
This market will remain open until January 3, 2027, 11:59:59 PM ET, or until January 7, 2027, 11:59:59 PM ET if the extension period applies. If a qualifying earthquake has occurred within this market's timeframe but has not yet appeared on the resolution source by the end of that period, another credible resolution source will be used.
The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program (https://earthquake.usgs.gov/earthquakes/search/). Magnitude is measured to one decimal place (e.g., 7.9). The USGS preferred magnitude at the end of this market's open period governs; later revisions do not reopen or change this market's resolution.
An extension period extends this market's close from January 3, 2027, 11:59:59 PM ET to as late as January 7, 2027, 11:59:59 PM ET, and applies when a qualifying earthquake has occurred within this market's timeframe but the USGS has not yet published or finalized its preferred magnitude. This additional time allows the reported magnitude to be finalized before this market resolves.
This market will remain open until January 3, 2027, 11:59:59 PM ET, or until January 7, 2027, 11:59:59 PM ET if the extension period applies. If a qualifying earthquake has occurred within this market's timeframe but has not yet appeared on the resolution source by the end of that period, another credible resolution source will be used.
Market Opened: Aug 18, 2026, 10:53 AM ET
Volume
$2,390End Date
Jan 4, 2027Market Opened
Aug 18, 2026, 10:53 AM ETResolution Source
https://earthquake.usgs.gov/earthquakes/search/Resolver
0x69c47De9D...This market will resolve based on the USGS preferred magnitude of the largest (highest-magnitude) earthquake to occur anywhere on Earth between January 1, 2026, 12:00:00 AM ET and December 31, 2026, 11:59:59 PM ET. The "7.9 or below" bracket covers any case in which the highest-magnitude earthquake during this market's timeframe is below 8.0, including the magnitude 7.8 already recorded in 2026 and any lower value.
The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program (https://earthquake.usgs.gov/earthquakes/search/). Magnitude is measured to one decimal place (e.g., 7.9). The USGS preferred magnitude at the end of this market's open period governs; later revisions do not reopen or change this market's resolution.
An extension period extends this market's close from January 3, 2027, 11:59:59 PM ET to as late as January 7, 2027, 11:59:59 PM ET, and applies when a qualifying earthquake has occurred within this market's timeframe but the USGS has not yet published or finalized its preferred magnitude. This additional time allows the reported magnitude to be finalized before this market resolves.
This market will remain open until January 3, 2027, 11:59:59 PM ET, or until January 7, 2027, 11:59:59 PM ET if the extension period applies. If a qualifying earthquake has occurred within this market's timeframe but has not yet appeared on the resolution source by the end of that period, another credible resolution source will be used.No magnitude-8.0 or greater earthquake has occurred in 2026 through late August, with the year's maximum standing at 7.8 from the June Philippines event along the Cotabato Trench subduction zone and a 7.7 striking Indonesia's Flores region in mid-August. USGS data confirm roughly a dozen 7.0–7.9 events globally so far, consistent with historical averages of about one 8+ quake annually worldwide. Subduction-zone megathrusts capable of higher magnitudes remain the primary geologic settings, yet the absence of an 8+ event midway through the year, combined with typical variability in rupture timing and size, underpins the dominant 74.5% market-implied odds for a 7.9 ceiling. Remaining months introduce forecast uncertainty, as new USGS monitoring and model updates could shift probabilities if strain accumulation accelerates.
This market will resolve based on the USGS preferred magnitude of the largest (highest-magnitude) earthquake to occur anywhere on Earth between January 1, 2026, 12:00:00 AM ET and December 31, 2026, 11:59:59 PM ET. The "7.9 or below" bracket covers any case in which the highest-magnitude earthquake during this market's timeframe is below 8.0, including the magnitude 7.8 already recorded in 2026 and any lower value.
The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program (https://earthquake.usgs.gov/earthquakes/search/). Magnitude is measured to one decimal place (e.g., 7.9). The USGS preferred magnitude at the end of this market's open period governs; later revisions do not reopen or change this market's resolution.
An extension period extends this market's close from January 3, 2027, 11:59:59 PM ET to as late as January 7, 2027, 11:59:59 PM ET, and applies when a qualifying earthquake has occurred within this market's timeframe but the USGS has not yet published or finalized its preferred magnitude. This additional time allows the reported magnitude to be finalized before this market resolves.
This market will remain open until January 3, 2027, 11:59:59 PM ET, or until January 7, 2027, 11:59:59 PM ET if the extension period applies. If a qualifying earthquake has occurred within this market's timeframe but has not yet appeared on the resolution source by the end of that period, another credible resolution source will be used.
The resolution source for this market is the United States Geological Survey (USGS) Earthquake Hazards Program (https://earthquake.usgs.gov/earthquakes/search/). Magnitude is measured to one decimal place (e.g., 7.9). The USGS preferred magnitude at the end of this market's open period governs; later revisions do not reopen or change this market's resolution.
An extension period extends this market's close from January 3, 2027, 11:59:59 PM ET to as late as January 7, 2027, 11:59:59 PM ET, and applies when a qualifying earthquake has occurred within this market's timeframe but the USGS has not yet published or finalized its preferred magnitude. This additional time allows the reported magnitude to be finalized before this market resolves.
This market will remain open until January 3, 2027, 11:59:59 PM ET, or until January 7, 2027, 11:59:59 PM ET if the extension period applies. If a qualifying earthquake has occurred within this market's timeframe but has not yet appeared on the resolution source by the end of that period, another credible resolution source will be used.
Volume
$2,390End Date
Jan 4, 2027Market Opened
Aug 18, 2026, 10:53 AM ETResolution Source
https://earthquake.usgs.gov/earthquakes/search/Resolver
0x69c47De9D...No magnitude-8.0 or greater earthquake has occurred in 2026 through late August, with the year's maximum standing at 7.8 from the June Philippines event along the Cotabato Trench subduction zone and a 7.7 striking Indonesia's Flores region in mid-August. USGS data confirm roughly a dozen 7.0–7.9 events globally so far, consistent with historical averages of about one 8+ quake annually worldwide. Subduction-zone megathrusts capable of higher magnitudes remain the primary geologic settings, yet the absence of an 8+ event midway through the year, combined with typical variability in rupture timing and size, underpins the dominant 74.5% market-implied odds for a 7.9 ceiling. Remaining months introduce forecast uncertainty, as new USGS monitoring and model updates could shift probabilities if strain accumulation accelerates.
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