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When will Kīlauea's Episode 53 begin?

icon for When will Kīlauea's Episode 53 begin?

When will Kīlauea's Episode 53 begin?

Aug 11-12 46%

Aug 13 or later 42%

Aug 8 or earlier 34%

Aug 9-10 33%

Polymarket
NEW

Aug 11-12 46%

Aug 13 or later 42%

Aug 8 or earlier 34%

Aug 9-10 33%

Polymarket
NEW

Aug 8 or earlier

$0 Vol.

34%

Aug 9-10

$0 Vol.

33%

Aug 11-12

$20 Vol.

46%

Aug 13 or later

$0 Vol.

42%

This market resolves based on the date on which Episode 53 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea begins, according to the United States Geological Survey Hawaiian Volcano Observatory (HVO). "Aug 13 or later" resolves "Yes" if Episode 53 has not begun, per the HVO-stated onset date, before 12:00 AM HST August 13, 2026. If Episode 53 has still not begun by 11:59 PM HST August 31, 2026, "Aug 13 or later" resolves "Yes." Resolution is based on the onset date and time for Episode 53 as stated by HVO in the first Observatory Message or Status Report confirming the episode has begun (e.g., "Episode 53 of the ongoing Halemaʻumaʻu eruption began at [time] on [date]"). The onset date stated in that message determines which bracket resolves "Yes," even if the message itself is published after the onset. Precursory low-level activity that HVO does not designate as the episode onset does not count. If HVO does not designate the next fountaining episode as "Episode 53," the next confirmed Halemaʻumaʻu fountaining episode after Episode 52 will be treated as Episode 53 for resolution purposes. If HVO states a different onset time in a subsequent report, the most recently stated time governs. The primary resolution source for this market will be HVO's Observatory Messages (https://www.usgs.gov/observatories/hvo/observatory-messages) and HVO's Kīlauea daily updates; however, a consensus of credible reporting citing HVO may also be used.**Trader sentiment for Kīlauea Episode 53 timing reflects the USGS Hawaiian Volcano Observatory’s tilt-based forecast window of August 8–12, with closely matched probabilities across the mid-to-late portion of that interval driven by ongoing summit inflation data.** Following the abrupt end of Episode 52 on July 29, 2026, the Uēkahuna tiltmeter recorded a switch to steady inflationary tilt totaling 10.6 microradians by early August, including 1.3 microradians gained in the most recent 24-hour period. This reinflation, paired with persistent moderate-to-strong glow from the north vent and gas-pistoning activity at the south vent system, signals accumulating magmatic pressure beneath Halemaʻumaʻu. HVO models, calibrated on historical deflation-inflation cycles during the episodic eruption that began in December 2024, currently place the next fountaining most likely between August 8 and 12, with adjustments possible if tilt trends accelerate or stall. The near-even split between August 11–12 and later dates versus earlier slots captures genuine uncertainty in the precise rate of pressure buildup. Continued positive tilt, seismic tremor patterns, and SO₂ emission trends will determine whether the episode arrives at the earlier or later end of the window; new daily updates from HVO could quickly shift market-implied odds.

This market resolves based on the date on which Episode 53 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea begins, according to the United States Geological Survey Hawaiian Volcano Observatory (HVO).

"Aug 13 or later" resolves "Yes" if Episode 53 has not begun, per the HVO-stated onset date, before 12:00 AM HST August 13, 2026. If Episode 53 has still not begun by 11:59 PM HST August 31, 2026, "Aug 13 or later" resolves "Yes."

Resolution is based on the onset date and time for Episode 53 as stated by HVO in the first Observatory Message or Status Report confirming the episode has begun (e.g., "Episode 53 of the ongoing Halemaʻumaʻu eruption began at [time] on [date]"). The onset date stated in that message determines which bracket resolves "Yes," even if the message itself is published after the onset. Precursory low-level activity that HVO does not designate as the episode onset does not count. If HVO does not designate the next fountaining episode as "Episode 53," the next confirmed Halemaʻumaʻu fountaining episode after Episode 52 will be treated as Episode 53 for resolution purposes.

If HVO states a different onset time in a subsequent report, the most recently stated time governs.

The primary resolution source for this market will be HVO's Observatory Messages (https://www.usgs.gov/observatories/hvo/observatory-messages) and HVO's Kīlauea daily updates; however, a consensus of credible reporting citing HVO may also be used.
Volume
$20
End Date
Sep 1, 2026
Market Opened
Aug 6, 2026, 12:25 PM ET
This market resolves based on the date on which Episode 53 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea begins, according to the United States Geological Survey Hawaiian Volcano Observatory (HVO). "Aug 13 or later" resolves "Yes" if Episode 53 has not begun, per the HVO-stated onset date, before 12:00 AM HST August 13, 2026. If Episode 53 has still not begun by 11:59 PM HST August 31, 2026, "Aug 13 or later" resolves "Yes." Resolution is based on the onset date and time for Episode 53 as stated by HVO in the first Observatory Message or Status Report confirming the episode has begun (e.g., "Episode 53 of the ongoing Halemaʻumaʻu eruption began at [time] on [date]"). The onset date stated in that message determines which bracket resolves "Yes," even if the message itself is published after the onset. Precursory low-level activity that HVO does not designate as the episode onset does not count. If HVO does not designate the next fountaining episode as "Episode 53," the next confirmed Halemaʻumaʻu fountaining episode after Episode 52 will be treated as Episode 53 for resolution purposes. If HVO states a different onset time in a subsequent report, the most recently stated time governs. The primary resolution source for this market will be HVO's Observatory Messages (https://www.usgs.gov/observatories/hvo/observatory-messages) and HVO's Kīlauea daily updates; however, a consensus of credible reporting citing HVO may also be used.
This market resolves based on the date on which Episode 53 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea begins, according to the United States Geological Survey Hawaiian Volcano Observatory (HVO). "Aug 13 or later" resolves "Yes" if Episode 53 has not begun, per the HVO-stated onset date, before 12:00 AM HST August 13, 2026. If Episode 53 has still not begun by 11:59 PM HST August 31, 2026, "Aug 13 or later" resolves "Yes." Resolution is based on the onset date and time for Episode 53 as stated by HVO in the first Observatory Message or Status Report confirming the episode has begun (e.g., "Episode 53 of the ongoing Halemaʻumaʻu eruption began at [time] on [date]"). The onset date stated in that message determines which bracket resolves "Yes," even if the message itself is published after the onset. Precursory low-level activity that HVO does not designate as the episode onset does not count. If HVO does not designate the next fountaining episode as "Episode 53," the next confirmed Halemaʻumaʻu fountaining episode after Episode 52 will be treated as Episode 53 for resolution purposes. If HVO states a different onset time in a subsequent report, the most recently stated time governs. The primary resolution source for this market will be HVO's Observatory Messages (https://www.usgs.gov/observatories/hvo/observatory-messages) and HVO's Kīlauea daily updates; however, a consensus of credible reporting citing HVO may also be used.**Trader sentiment for Kīlauea Episode 53 timing reflects the USGS Hawaiian Volcano Observatory’s tilt-based forecast window of August 8–12, with closely matched probabilities across the mid-to-late portion of that interval driven by ongoing summit inflation data.** Following the abrupt end of Episode 52 on July 29, 2026, the Uēkahuna tiltmeter recorded a switch to steady inflationary tilt totaling 10.6 microradians by early August, including 1.3 microradians gained in the most recent 24-hour period. This reinflation, paired with persistent moderate-to-strong glow from the north vent and gas-pistoning activity at the south vent system, signals accumulating magmatic pressure beneath Halemaʻumaʻu. HVO models, calibrated on historical deflation-inflation cycles during the episodic eruption that began in December 2024, currently place the next fountaining most likely between August 8 and 12, with adjustments possible if tilt trends accelerate or stall. The near-even split between August 11–12 and later dates versus earlier slots captures genuine uncertainty in the precise rate of pressure buildup. Continued positive tilt, seismic tremor patterns, and SO₂ emission trends will determine whether the episode arrives at the earlier or later end of the window; new daily updates from HVO could quickly shift market-implied odds.

This market resolves based on the date on which Episode 53 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea begins, according to the United States Geological Survey Hawaiian Volcano Observatory (HVO).

"Aug 13 or later" resolves "Yes" if Episode 53 has not begun, per the HVO-stated onset date, before 12:00 AM HST August 13, 2026. If Episode 53 has still not begun by 11:59 PM HST August 31, 2026, "Aug 13 or later" resolves "Yes."

Resolution is based on the onset date and time for Episode 53 as stated by HVO in the first Observatory Message or Status Report confirming the episode has begun (e.g., "Episode 53 of the ongoing Halemaʻumaʻu eruption began at [time] on [date]"). The onset date stated in that message determines which bracket resolves "Yes," even if the message itself is published after the onset. Precursory low-level activity that HVO does not designate as the episode onset does not count. If HVO does not designate the next fountaining episode as "Episode 53," the next confirmed Halemaʻumaʻu fountaining episode after Episode 52 will be treated as Episode 53 for resolution purposes.

If HVO states a different onset time in a subsequent report, the most recently stated time governs.

The primary resolution source for this market will be HVO's Observatory Messages (https://www.usgs.gov/observatories/hvo/observatory-messages) and HVO's Kīlauea daily updates; however, a consensus of credible reporting citing HVO may also be used.
Volume
$20
End Date
Sep 1, 2026
Market Opened
Aug 6, 2026, 12:25 PM ET
This market resolves based on the date on which Episode 53 of the ongoing Halemaʻumaʻu eruption at the summit of Kīlauea begins, according to the United States Geological Survey Hawaiian Volcano Observatory (HVO). "Aug 13 or later" resolves "Yes" if Episode 53 has not begun, per the HVO-stated onset date, before 12:00 AM HST August 13, 2026. If Episode 53 has still not begun by 11:59 PM HST August 31, 2026, "Aug 13 or later" resolves "Yes." Resolution is based on the onset date and time for Episode 53 as stated by HVO in the first Observatory Message or Status Report confirming the episode has begun (e.g., "Episode 53 of the ongoing Halemaʻumaʻu eruption began at [time] on [date]"). The onset date stated in that message determines which bracket resolves "Yes," even if the message itself is published after the onset. Precursory low-level activity that HVO does not designate as the episode onset does not count. If HVO does not designate the next fountaining episode as "Episode 53," the next confirmed Halemaʻumaʻu fountaining episode after Episode 52 will be treated as Episode 53 for resolution purposes. If HVO states a different onset time in a subsequent report, the most recently stated time governs. The primary resolution source for this market will be HVO's Observatory Messages (https://www.usgs.gov/observatories/hvo/observatory-messages) and HVO's Kīlauea daily updates; however, a consensus of credible reporting citing HVO may also be used.

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Frequently Asked Questions

"When will Kīlauea's Episode 53 begin?" is a prediction market on Polymarket with 4 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Aug 11-12" at 46%, followed by "Aug 13 or later" at 42%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 46¢ implies that the market collectively assigns a 46% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"When will Kīlauea's Episode 53 begin?" is a newly created market on Polymarket, launched on Aug 6, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "When will Kīlauea's Episode 53 begin?," browse the 4 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "When will Kīlauea's Episode 53 begin?" is "Aug 11-12" at 46%, meaning the market assigns a 46% chance to that outcome. The next closest outcome is "Aug 13 or later" at 42%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "When will Kīlauea's Episode 53 begin?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.