TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Science and Technology
How many 5.5 or above earthquakes worldwide September 21 - September 27?
polymarket

How many 5.5 or above earthquakes worldwide September 21 - September 27?

Volume:
$21,312

≤6

 - Polymarket

≤6 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 28, 2026

Closed: Sep 28, 9:16 AM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

≤6

View
100%
10%
Yes 100¢No 0¢
0.1¢
N/A
$16,005
N/A
N/A
N/A
Settled
Yes
polymarket

7

0%
6%
Yes 0¢No 100¢
—
N/A
$1,723
N/A
N/A
N/A
Settled
No
polymarket

13

0%
3%
Yes 0¢No 100¢
—
N/A
$829
N/A
N/A
N/A
Settled
No
polymarket

9

0%
4%
Yes 0¢No 100¢
—
N/A
$554
N/A
N/A
N/A
Settled
No
polymarket

10

0%
3%
Yes 0¢No 100¢
—
N/A
$529
N/A
N/A
N/A
Settled
No
polymarket

8

0%
3%
Yes 0¢No 100¢
—
N/A
$487
N/A
N/A
N/A
Settled
No
polymarket

more than 13

0%
1%
Yes 0¢No 100¢
—
N/A
$425
N/A
N/A
N/A
Settled
No
polymarket

11

0%
3%
Yes 0¢No 100¢
—
N/A
$392
N/A
N/A
N/A
Settled
No
polymarket

12

0%
4%
Yes 0¢No 100¢
—
N/A
$368
N/A
N/A
N/A
Settled
No
Total markets: 9

Description

This market will resolve according to the total number of earthquakes with a magnitude of 5.5 or higher that occur anywhere on Earth between September 21, 2026, 12:00 AM ET and September 27, 2026, 11:59 PM ET. 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.

Polymarket

This market will resolve according to the total number of earthquakes with a magnitude of 5.5 or higher that occur anywhere on Earth between September 21, 2026, 12:00 AM ET and September 27, 2026, 11:59 PM ET. 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.

Frequently asked questions

On Polymarket, the dashboard for the global earthquake count market tracks the current odds of various outcomes regarding the number of magnitude 5.5 or higher earthquakes occurring worldwide between September 21st and September 27th. You’ll find the current probabilities assigned by traders, a price history chart showing how those probabilities have shifted over time, and the 24-hour trading volume, which is currently $4,675. The total volume traded on this market to date is $21,312, indicating significant interest in this event. This allows you to gauge market sentiment and track how predictions evolve.

On Polymarket, this market is priced through a continuous double auction, meaning traders buy and sell shares representing their belief in each outcome. The price of a share directly reflects the implied probability of that outcome occurring. As more traders participate, the prices adjust to reflect the collective assessment of the likelihood of different earthquake counts. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price movements are driven by new information, shifts in sentiment, and the overall demand for shares in each possible outcome, creating a dynamic and responsive pricing mechanism.

This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The final count of earthquakes with a magnitude of 5.5 or higher occurring between September 21st and September 27th will be sourced from established earthquake monitoring agencies. The market will settle based on this verified count, determining which outcome – the number of qualifying earthquakes – is the accurate result. Traders will then be able to claim their winnings or fulfill their obligations based on the final outcome.

Several signals could significantly impact this market. A series of smaller earthquakes, or foreshocks, in known seismic zones might increase trader concern and shift probabilities towards a higher earthquake count. Conversely, a period of seismic quiet could lower expectations. Major geological reports or statements from seismologists about increased or decreased risk in specific regions could also influence trading activity. Finally, any unexpected large-scale natural disasters unrelated to earthquakes could potentially divert attention and impact volume, though the core driver remains earthquake activity during the specified timeframe.