Will there be 20 or more earthquakes of magnitude 7.0 or higher worldwide in 2026?

Prediction markets put the probability at 13%: Will there be 20 or more earthquakes of magnitude 7.0 or higher worldwide in 2026. Currently, markets see this as unlikely (13% YES). Magnitude 6.1 earthquake shakes northern Japan.

What’s Happening

Seismic activity in Japan has drawn renewed attention to global earthquake frequency, as a magnitude 6.1 earthquake shook northern Japan on Monday, April 27, 2026, striking 11 miles west of the town of Sarabetsu on Hokkaido at a depth of 50 miles. This event follows a 7.7-magnitude earthquake that occurred a week earlier, which prompted Japan's meteorological agency to issue an advisory for a slightly elevated risk of a megaquake along the nation's northeastern coastal areas. While no damage or casualties were reported from the latest tremor, the sequence of moderate-to-strong quakes has raised questions about whether global seismic patterns are shifting toward a higher frequency of major events. The current prediction market assessing whether there be 20 or more earthquakes of magnitude 7.0 or higher worldwide in 2026 assigns a 13% probability to the YES outcome, reflecting a prevailing view among traders that the annual count will fall short of that threshold. [Los Angeles Times, Apr 27]

The significance of this market lies in its tracking of a key scientific benchmark: the historical average for earthquakes of magnitude 7.0 or higher is roughly 15 to 16 per year, according to data from the U.S. Geological Survey. Reaching 20 or more would represent a notable anomaly, potentially linked to increased tectonic stress or a cluster of major subduction zone events. Recent reporting from The New York Times highlights that Japanese officials are urging residents to prepare for a catastrophic quake, underscoring the heightened alertness in a region that experiences frequent tremors. However, the two small earthquakes recorded near Winnsboro, South Carolina on April 21, 2026—a magnitude 2.3 and a magnitude 1.6—serve as a reminder that most seismic activity worldwide remains minor and does not contribute to the count of major quakes. The market's 87% probability for NO suggests that, despite recent attention on Japan, the overall pace of major earthquakes in 2026 is not yet tracking above historical norms. [New York Times, Apr 22]

Looking ahead, the key factor determining whether there be 20 or more earthquakes of magnitude 7.0 or higher worldwide in 2026 will be the occurrence of large subduction zone events, particularly in the Pacific Ring of Fire. Japan's recent 7.7-magnitude quake and the subsequent advisory for increased megaquake risk indicate that the region remains seismically active, but the market's current 13% YES probability implies that traders do not expect a dramatic acceleration in the frequency of major quakes through the rest of the year. The U.S. Geological Survey continues to monitor global seismic networks, and any significant event above magnitude 7.0 in the coming months could shift the probability. For now, the data from April 2026 shows a mix of minor and moderate tremors, but no surge in the high-magnitude events that would push the annual total toward 20. [Washington Post, Apr 26]

Traded on Polymarket — $61K Volume

Lower-volume market on Polymarket ($61K). Wider spreads expected — enter with limit orders and be aware of slippage risk. Currently 13c YES.