Recent seismic activity along the Pacific Ring of Fire has produced six to seven magnitude 7.0–7.9 earthquakes worldwide through early June 2026, including the June 8 event offshore the Philippines, according to USGS data. This pace aligns with the long-term global average of roughly 15–16 such events annually, or about eight expected in the first half of the year. Subduction zone tectonics continue releasing strain at typical rates without an extended quiet period. With only three weeks remaining until June 30, the market-implied near-certainty of reaching eight or more reflects this established frequency. A statistically uncommon short-term lull could still prevent crossing the threshold before resolution.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · ActualizadoMinor 3.9‑magnitude tremor recorded near Japan
7 plunges to 1%25%
A modest 3.9 quake near Japan received little media coverage; the 8+ price remained at 99 % while the 7‑only price fell to 1 % as traders focused on the recent 7.8 event.
7.8‑magnitude earthquake hits Philippines, highest‑magnitude event of 2026 so far
A magnitude‑7.8 quake struck the Philippines, the largest event of the window, pushing the 8+ price to its final 99 % level and virtually eliminating the 7‑only outcome.
Market sharply adjusts probabilities near June 8 endpoint
8+ surges to 99%25%
In early June 2026, the market saw a significant price movement with the 8+ outcome rising sharply to 99% and the 7 outcome dropping to 1%, reflecting near certainty that at least eight earthquakes of magnitude 7.0 or above had occurred or would be confirmed by June 30. This likely corresponds to the accumulation of confirmed seismic events and data from USGS.
M5.7 quake off California coast prompts renewed seismic worry
8+ surges to 99%25%
A series of magnitude‑5.7 and‑5.1 quakes off California’s coast, though not 7+, kept market attention on seismic risk, causing a sharp rise of the 8+ price from 74 % to 99 % within two days.
USGS records 8.0+ earthquake, raising 8+ option to 94%
8+ jumps to 94%8%
USGS posted a significant 8‑plus‑magnitude event (reported in the archive) which drove the 8+ price to near‑certainty (94‑99%). The 7‑only outcome fell to near‑zero as the market expected the count to be dominated by the 8+ quake.
Major Magnitude 7.7 Earthquake Strikes Off Northern Japan
8+ surges to 94%16%
A powerful magnitude 7.7 earthquake struck off the coast of northern Japan, triggering tsunami warnings and sending the '8+' outcome price to its peak of 94%.
USGS Confirms 7.0 Magnitude Earthquake in Nevada
8+ jumps to 93%7%
A 7.0-magnitude earthquake occurred in Nevada, reported by the USGS and noted as a significant event in the region.
Powerful Magnitude 7.4 Earthquake Strikes Indonesia
8+ surges to 86%30%
A magnitude 7.4 earthquake struck the Molucca Sea region of Indonesia, triggering tsunami warnings and pushing the '8+' outcome price up to 86% as the global count neared the threshold.
Strongest Earthquake of 2026 Strikes Near Tonga at Magnitude 7.5
8+ surges to 56%25%
A powerful magnitude 7.5 earthquake struck deep beneath the South Pacific near Tonga, marking the strongest quake of 2026 so far and driving the '8+' outcome price up significantly.
4.6 Magnitude Earthquake Reported South of Fiji Islands
A 4.6-magnitude earthquake occurred south of the Fiji Islands at a depth of 497 km. While below the 7.0 threshold, this event may have been a false alarm or minor tremor that affected market sentiment.
Magnitude 7.1 Earthquake Strikes Near Sabah, Malaysia
8+ surges to 57%25%
A deep magnitude 7.1 earthquake struck near Kudat, Sabah, Malaysia, pushing the global count of 7.0+ earthquakes higher and causing a sharp rebound in the '8+' outcome price.
4.7 Earthquake Near Evanston Shakes Northern Utah
The 4.7 magnitude earthquake near Evanston, Wyoming, also affected parts of northern Utah on January 22, 2026. This event was widely felt but did not affect the market's large earthquake outcome probabilities significantly.
4.7 Magnitude Earthquake Reported in Wyoming, US
A 4.7 magnitude earthquake occurred near Evanston, Wyoming, on January 22, 2026. Although below magnitude 7.0, this event contributed to market activity but had limited impact on the '7' or '8+' outcomes.
4.2 magnitude earthquake strikes near Cloverdale
7 drops to 41%9%
A 4.2 magnitude earthquake occurred near Cloverdale, California on January 8, 2026, contributing to the overall earthquake count but not affecting the 7.0+ outcome.
Magnitude‑4.7 quake shakes Utah‑Wyoming border
8+ dips to 56%4%
A 4.7 quake near the Utah‑Wyoming border was reported. Though below the 7.0 threshold, media coverage reminded markets of continual seismic activity, modestly nudging the 8+ price upward after a brief dip.
4.9-magnitude earthquake reported in California
7 drops to 41%9%
A 4.9-magnitude earthquake occurred near Susanville, California on December 30, 2025, contributing to the overall earthquake count but not affecting the 7.0+ outcome.
7.0 magnitude earthquake strikes off coast of Taiwan
A 7.0 magnitude earthquake occurred off the coast of northeastern Taiwan, adding to the total count of 7.0+ earthquakes in the market timeframe.
Taiwan Rattled by 7.0 Magnitude Earthquake Off Yilan
8+ dips to 75%2%
A magnitude 7.0 earthquake struck off Taiwan's northeastern coast, adding another major event to the global tally and keeping the '8+' outcome at a high probability.
Japan hit by 7.6‑magnitude earthquake, tsunami alert issued
8+ jumps to 86%9%
A 7.6‑magnitude quake hit off the coast of Japan, the strongest 7+ event to date. The market’s 8+ price jumped dramatically as traders anticipated a possible cascade of high‑magnitude events, while the 7‑only outcome slipped further.
7.6 Magnitude Earthquake Hits Japan, Tsunami Alert Issued
8+ surges to 83%24%
A 7.6 magnitude earthquake struck near Misawa, Japan, on December 8, 2025, prompting a tsunami alert for coastal regions. This major quake further increased market expectations for multiple large earthquakes, pushing the '8+' outcome price sharply from 59% to 83%.
7.6 Magnitude Earthquake Reported in Japan
8+ surges to 99%18%
On December 8, 2025, a 7.6-magnitude earthquake struck near Misawa, Japan, as reported by the USGS. This large earthquake further increased the likelihood of the '8+' outcome in the market, causing a significant price increase for that option.
7.6 Magnitude Earthquake Strikes Japan, Tsunami Alert Issued
8+ dips to 77%4%
A 7.6 magnitude earthquake struck east-northeast of Misawa, Japan, prompting a tsunami alert for coastal regions. This large earthquake further reinforced market expectations of multiple 7.0+ earthquakes occurring within the timeframe, pushing the 8+ outcome price higher.
Magnitude 7.6 Earthquake Strikes Off the Coast of Japan
8+ dips to 81%3%
A major magnitude 7.6 earthquake struck off the coast of Japan, further accelerating the count of 7.0+ earthquakes and solidifying the '8+' outcome's lead.
Magnitude 7.0 Earthquake Strikes Alaska
8+ surges to 84%34%
A powerful magnitude 7.0 earthquake struck Alaska, marking one of the first major seismic events of the market's timeframe and driving up the probability of the '8+' outcome.
7.6 magnitude earthquake reported in Japan
A 7.6 magnitude earthquake struck near Misawa, Japan, increasing the count of significant earthquakes and affecting the market price.
7.0-magnitude earthquake reported near Alaska-Canada border
8+ surges to 95%45%
A 7.0-magnitude earthquake occurred northwest of Juneau, Alaska, reported by USGS on December 6, 2025, triggering a significant price spike to 95% in April 2026.
7.0 Magnitude Earthquake Reported Near Alaska-Canada Border
7 plunges to 9%41%
A 7.0 magnitude earthquake occurred about 230 miles northwest of Juneau, Alaska, at a depth of 10 kilometers. This was the only 7.0+ earthquake reported in the US during the analyzed period up to early December, significantly impacting market expectations for the occurrence of at least one 7.0+ earthquake by June 30, 2026.
7.0‑magnitude quake rattles Alaska‑Canada border
8+ drops to 75%6%
A magnitude‑7.0 earthquake struck near the Alaska‑Canada border. The event was the first 7.0+ quake in the window, causing the 8+ probability to surge as traders expected additional large quakes, while the 7‑only outcome fell sharply.
7.0 Magnitude Earthquake Strikes Near Alaska-Canada Border
7 plunges to 9%41%
A powerful 7.0-magnitude earthquake struck near the Alaska-Canada border, centered northwest of Juneau. This major seismic event immediately established a baseline of at least one 7.0+ earthquake during the market's timeframe, causing a massive shift in the probability distribution of the outcomes.
Magnitude 7.0 Earthquake Strikes Near Yakutat, Alaska
8+ surges to 81%31%
A powerful magnitude 7.0 earthquake struck Alaska on December 6, 2025, marking the first major event of the tracking period and immediately driving up the probability of the '8+' outcome.
7.0 Magnitude Earthquake Near Alaska-Canada Border Reported
8+ surges to 81%31%
A 7.0-magnitude earthquake was reported near the Alaska-Canada border on December 6, 2025, according to the USGS. This significant seismic event increased market confidence that at least 7 earthquakes of magnitude 7.0 or above would occur, impacting the market by raising the probability of the '8+' outcome.
7.0 Magnitude Earthquake Strikes Near Alaska-Canada Border
8+ rises to 54%4%
A 7.0 magnitude earthquake occurred about 230 miles northwest of Juneau, Alaska, on December 6, 2025. This significant seismic event increased market confidence in the occurrence of multiple 7.0+ earthquakes, raising the price for the '8+' outcome from 50% to 54%.
False Alert for Magnitude 5.9 Earthquake in Nevada
On December 4, 2025, a false alert for a 5.9 magnitude earthquake in Nevada was issued and then retracted by the USGS. This event caused initial uncertainty but did not affect the market prices for 7.0+ earthquakes significantly.
USGS confirms false ShakeAlert alert for Nevada earthquake
A ShakeAlert alert for a 5.9 magnitude earthquake near Carson City, Nevada, was issued but later confirmed by USGS as a false alarm, causing market uncertainty about seismic activity in the region.
False Alarm for 5.9 Magnitude Earthquake Alert in Nevada
On December 4, 2025, a false alert for a 5.9 magnitude earthquake in Nevada was issued and then retracted by the USGS. This false alarm caused temporary market uncertainty but did not affect the 7.0+ earthquake count outcomes.
False 5.9 Magnitude Earthquake Alert in Nevada
A false alert for a 5.9 magnitude earthquake in Nevada was issued and then retracted by the USGS, causing market uncertainty and a temporary price drop for the 8+ outcome.
USGS retracts false Nevada 5.9‑magnitude earthquake alert
8+ surges to 81%31%
USGS posted a false alert for a magnitude‑5.9 quake in Nevada that was later withdrawn. The mistaken alert heightened concern about seismic activity, pushing the 8+ market up and the 7 market down as traders feared an unnoticed larger event.
USGS retracts false 5.9 magnitude earthquake alert in Nevada
An initial alert for a 5.9 magnitude earthquake near Carson City, Nevada, was issued and then retracted within an hour by the USGS, confirming the event did not occur. This false alarm caused initial market uncertainty but did not affect the count of magnitude 7.0+ earthquakes.
USGS issues false 5.9-magnitude earthquake alert in Nevada, quickly cancels it
A ShakeAlert warning for a 5.9-magnitude earthquake near Carson City, Nevada, was issued but quickly canceled by USGS after confirming no such earthquake occurred, affecting market confidence in earthquake reporting accuracy.
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