Mount Tokachi Erupts in Hokkaido for First Time Since 2004, July 22

Mount Tokachi erupted on July 22 at 11:07 a.m., marking its first eruption in 22 years. The Japan Meteorological Agency reported black smoke rising approximately 200 meters from the crater. No large volcanic rocks were ejected, and the Sapporo Regional Headquarters maintained the volcanic alert at level 2, restricting entry within 1.5 kilometers of the crater.

What happened at Mount Tokachi on July 22

At 11:07 a.m. on Wednesday, July 22, a small eruption occurred at Mount Tokachi, located in central Hokkaido. Black smoke billowed about 200 meters into the air from a crater roughly one kilometer northwest of the summit. Volcanic tremors were recorded for about 45 seconds, and atmospheric vibrations were detected at a monitoring station near a sheltering lodge. No large volcanic projectiles were confirmed, and no casualties or property damage were reported.

Alert level 2 continues with warning of repeated eruptions

The Japan Meteorological Agency maintained alert level 2, which restricts entry around the crater. Officials warned that similar small eruptions could occur repeatedly. People within 1.5 kilometers of the crater must watch for large volcanic rocks, and local governments advised residents to avoid hazardous areas. Wind-carried volcanic ash and small rocks may reach areas far downwind from the eruption site.

Why the volcano became active this year

Mount Tokachi showed signs of unrest starting in March 2026, including crustal deformation, increased volcanic gas emissions, and seismic activity around the crater. In response, the meteorological agency raised the alert level from level 1 to level 2 in June. The volcano erupts on a 20- to 30-year cycle. Its deadliest eruption occurred in 1926, when 144 people died or went missing after a mudflow triggered by the eruption.

Impact on local communities and tourism

The eruption occurred during peak summer tourism season in Hokkaido. White Gold Hotel representative Shigeo Mizuno said the facility had experienced no immediate impact but hoped for no further volcanic activity. The town of Kamifurano issued calm advisories via emergency broadcast and its website, confirming that residents living in lower elevations faced no danger. Municipalities of Biei, Kamifurano, and Shintoku were advised to take precautions.

Final Thoughts

Mount Tokachi’s first eruption in 22 years posed minimal immediate risk, with authorities maintaining alert level 2 and expecting possible repeated small eruptions. Investors and residents in Hokkaido’s tourism sector should monitor official updates from the Japan Meteorological Agency for any escalation.

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