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ScienceQuiet 11d · day 12

Japan raises Mount Tokachidake alert to Level 3, first time since 2008

Hokkaido volcano banned to entry as seismic activity and gas emissions intensify; evacuation orders issued near hot spring areas.

newest coverage 11d agosummary written 11d ago4 pieces MastodonNewswires

What to know

  • Mount Tokachidake's alert was raised to Level 3 for the first time in 18 years, indicating elevated eruption risk within 3 kilometers of the crater.
  • Evacuation orders are in effect for hot spring areas; crustal deformation, gas emissions, and seismic activity have been building since March.
  • The escalation from Level 2 to Level 3 bans all entry to the mountain and reflects intensified volcanic activity detected over the past six months.

Japan Meteorological Agency Volcanic alert authorityKamifurano town government Local evacuation authority

Japan raises Mount Tokachidake alert to Level 3, first time since 2008
japantimes.co.jp

How it unfolded 1 development · click the chart to see its coverage articlesposts

Peak 2 pieces in 3h at Sep 12, 8 PM; 4 pieces over 12 days (1 article · 3 posts) Sep 12, 2 AM — 1 piece · 1 post — Mastodon 1Sep 12, 5 AM — quietSep 12, 8 AM — quietSep 12, 11 AM — quietSep 12, 2 PM — quietSep 12, 5 PM — quietSep 12, 8 PM — 2 pieces · 1 article · 1 post — Mastodon 1, Newswires 1Sep 12, 11 PM — quietSep 13, 2 AM — 1 piece · 1 post — Mastodon 1Sep 13, 5 AM — quietSep 13, 8 AM — quietSep 13, 11 AM — quietSep 13, 2 PM — quietSep 13, 5 PM — quietSep 13, 8 PM — quietSep 13, 11 PM — quietSep 14, 2 AM — quietSep 14, 5 AM — quietSep 14, 8 AM — quietSep 14, 11 AM — quietSep 14, 2 PM — quietSep 14, 5 PM — quietSep 14, 8 PM — quietSep 14, 11 PM — quietSep 15, 2 AM — quietSep 15, 5 AM — quietSep 15, 8 AM — quietSep 15, 11 AM — quietSep 15, 2 PM — quietSep 15, 5 PM — quietSep 15, 8 PM — quietSep 15, 11 PM — quietSep 16, 2 AM — quietSep 16, 5 AM — quietSep 16, 8 AM — quietSep 16, 11 AM — quietSep 16, 2 PM — quietSep 16, 5 PM — quietSep 16, 8 PM — quietSep 16, 11 PM — quietSep 17, 2 AM — quietSep 17, 5 AM — quietSep 17, 8 AM — quietSep 17, 11 AM — quietSep 17, 2 PM — quietSep 17, 5 PM — quietSep 17, 8 PM — quietSep 17, 11 PM — quietSep 18, 2 AM — quietSep 18, 5 AM — quietSep 18, 8 AM — quietSep 18, 11 AM — quietSep 18, 2 PM — quietSep 18, 5 PM — quietSep 18, 8 PM — quietSep 18, 11 PM — quietSep 19, 2 AM — quietSep 19, 5 AM — quietSep 19, 8 AM — quietSep 19, 11 AM — quietSep 19, 2 PM — quietSep 19, 5 PM — quietSep 19, 8 PM — quietSep 19, 11 PM — quietSep 20, 2 AM — quietSep 20, 5 AM — quietSep 20, 8 AM — quietSep 20, 11 AM — quietSep 20, 2 PM — quietSep 20, 5 PM — quietSep 20, 8 PM — quietSep 20, 11 PM — quietSep 21, 2 AM — quietSep 21, 5 AM — quietSep 21, 8 AM — quietSep 21, 11 AM — quietSep 21, 2 PM — quietSep 21, 5 PM — quietSep 21, 8 PM — quietSep 21, 11 PM — quietSep 22, 2 AM — quietSep 22, 5 AM — quietSep 22, 8 AM — quietSep 22, 11 AM — quietSep 22, 2 PM — quietSep 22, 5 PM — quietSep 22, 8 PM — quietSep 22, 11 PM — quietYesterday, 2 AM — quietYesterday, 5 AM — quietYesterday, 8 AM — quietYesterday, 11 AM — quietYesterday, 2 PM — quietYesterday, 5 PM — quietYesterday, 8 PM — quietYesterday, 11 PM — quietToday, 2 AM — quietToday, 5 AM — quiet 1
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  1. background

    Evacuation orders issued for hot spring areas near Mount Tokachidake — The Kamifurano town government issued an evacuation order for the Fukiage Onsen area, about 3 kilometers from the crater. Elderly residents in the nearby Tokachidake Onsen area were advised to evacuate. Some lodging facilities closed temporarily while others remained open but recommended evacuation for elderly guests.

  2. 1

    Strongest earthquake hits Mount Tokachidake; alert raised to Level 3

    The strongest volcanic earthquake in the recent sequence struck around 8:20 a.m. Saturday morning. The Japan Meteorological Agency simultaneously raised the eruption alert level from Level 2 to Level 3, the first time Level 3 has been issued for the mountain since the alert system was introduced in 2008. The alert bans entry to the 2,077-meter mountain and warns of large volcanic rocks within about 3 kilometers of the crater.

    “Volcanic activity has intensified, raising the possibility of an eruption.”
    — Japan Meteorological Agency
    1. 1 outlet Volcanic alert for Hokkaido’s Mt. Tokachidake raised to Level 3

      first by Japan Times, 11d ago

    • minorusaba@toad.social

      "Hokkaido's Mt. Tokachi volcanic alert level raised to 3" "Officials are urging people to be on alert for large volcanic rocks in areas within around 3 kilometers of the 62-2 crater. They are also warning that volcanic ash and small rocks could be blown far by winds and fall over areas on the downwind side." https:// www3.nhk.or.jp/nhkworld/news/2…

      minorusaba@toad.socialMastodon11d agoview on Mastodon ↗
    1 more of the top 2 · 2 posts in this stretch
    • thejapantimes@mastodon.social

      Japan raised the eruption alert level for Mount Tokachidake in Hokkaido to Level 3, banning entry to the 2,077-meter mountain. https://www. japantimes.co.jp/news/2026/09/ 13/japan/volcanic-alert-tokachidake-raised/?utm_medium=Social&utm_source=mastodon # japan # mounttokachidake # hokkaido # disasterpreparedness

      thejapantimes@mastodon.socialMastodon11d agoview on Mastodon ↗
    all of them →
  3. background

    Large volcanic earthquakes begin increasing near Mount Tokachidake — The number of large earthquakes near the volcano increased starting August 17.

  4. background

    Volcanic gas emissions increase at Mount Tokachidake — Emissions of sulfur dioxide began rising from the mountain.

  5. background

    Crustal deformation indicating expansion detected near Mount Tokachidake — Sustained crustal deformation showing expansion at a moderately deep level began near the mountain, a precursor to volcanic activity.

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