火山 スパー山
アンカレジの西約125kmにある、同市に最も近い活火山の一つです。1992年の噴火では市街地に火山灰が降り、空港が閉鎖されました。2024年には地震の増加、火山ガスの放出、地盤の隆起を伴う新たな活動期が始まり、2025年には科学者が噴火の可能性が高いと警告しました。
最新の噴火
1992
20世紀に噴火
山頂標高
3.4 km
成層火山 · 安山岩 / 玄武岩質安山岩
活動度
平常ベースライン
0件の地震（通常の0.0倍）
インタラクティブな火山および地震活動マップ
半径50km以内の地震活動、活発なVAAC火山灰プルーム、テクトニックプレート境界。
半径50 km以内の最近の地震活動
過去12時間に火口から25 km以内で0回の地震。
| 時刻 | マグニチュード | 震央・場所 | 距離 |
|---|---|---|---|
| 12h 前 | M0.9 | 75 km SW of Skwentna, Alaska | 27 km |
| 23h 前 | M0.5 | 72 km WNW of Beluga, Alaska | 11 km |
| 1d 前 | M2.5 | 44 km WNW of Beluga, Alaska | 21 km |
| 1d 前 | M0.5 | 70 km WNW of Tyonek, Alaska | 6.4 km |
| 1d 前 | M2.2 | 62 km W of Tyonek, Alaska | 30 km |
| 1d 前 | M0.6 | 66 km WNW of Beluga, Alaska | 3.8 km |
| 2d 前 | M0.5 | 57 km WNW of Beluga, Alaska | 10 km |
| 2d 前 | M1.7 | 17 km WNW of Tyonek, Alaska | 48 km |
| 2d 前 | M0.9 | 70 km WNW of Tyonek, Alaska | 5.3 km |
| 3d 前 | M0.4 | 74 km WNW of Beluga, Alaska | 18 km |
| 3d 前 | M0.4 | 69 km WNW of Tyonek, Alaska | 8.7 km |
| 3d 前 | M1.7 | 52 km WNW of Beluga, Alaska | 13 km |
| 3d 前 | M1.8 | 37 km NW of Beluga, Alaska | 38 km |
| 3d 前 | M1.0 | 65 km WNW of Tyonek, Alaska | 11 km |
| 4d 前 | M1.9 | 52 km SSW of Skwentna, Alaska | 38 km |
| 4d 前 | M2.0 | 52 km SSW of Skwentna, Alaska | 37 km |
| 4d 前 | M0.4 | 68 km WNW of Beluga, Alaska | 8.9 km |
| 4d 前 | M0.4 | 63 km WNW of Beluga, Alaska | 7.0 km |
| 4d 前 | M0.5 | 68 km WNW of Beluga, Alaska | 11 km |
| 5d 前 | M0.3 | 58 km WNW of Tyonek, Alaska | 7.1 km |
| 5d 前 | M1.4 | 39 km NW of Beluga, Alaska | 37 km |
| 5d 前 | M1.5 | 57 km SSW of Skwentna, Alaska | 32 km |
| 6d 前 | M1.1 | 69 km WNW of Beluga, Alaska | 9.3 km |
| 6d 前 | M1.2 | 52 km SSW of Skwentna, Alaska | 37 km |
| 6d 前 | M1.1 | 59 km WNW of Beluga, Alaska | 5.8 km |
| 6d 前 | M0.6 | 61 km WNW of Beluga, Alaska | 9.3 km |
| 6d 前 | M0.6 | 58 km WNW of Beluga, Alaska | 6.7 km |
| 6d 前 | M1.0 | 46 km SW of Skwentna, Alaska | 44 km |
| 7d 前 | M0.5 | 66 km WNW of Beluga, Alaska | 5.6 km |
| 7d 前 | M0.9 | 32 km NNW of Beluga, Alaska | 47 km |
| 7d 前 | M1.0 | 46 km NW of Beluga, Alaska | 31 km |
| 7d 前 | M0.4 | 65 km WNW of Beluga, Alaska | 6.0 km |
| 7d 前 | M-0.7 | 69 km WNW of Tyonek, Alaska | 4.6 km |
| 7d 前 | M0.8 | 52 km SSW of Skwentna, Alaska | 37 km |
| 7d 前 | M-0.3 | 65 km W of Tyonek, Alaska | 16 km |
| 7d 前 | M0.6 | 65 km SW of Skwentna, Alaska | 26 km |
| 8d 前 | M1.0 | 57 km SSW of Skwentna, Alaska | 32 km |
| 8d 前 | M1.3 | 53 km SSW of Skwentna, Alaska | 36 km |
| 8d 前 | M0.7 | 57 km SSW of Skwentna, Alaska | 33 km |
| 8d 前 | M0.5 | 56 km SSW of Skwentna, Alaska | 33 km |
| 8d 前 | M0.5 | 56 km SSW of Skwentna, Alaska | 33 km |
| 8d 前 | M0.3 | 55 km SSW of Skwentna, Alaska | 34 km |
| 8d 前 | M0.1 | 56 km SSW of Skwentna, Alaska | 33 km |
| 8d 前 | M0.8 | 56 km SSW of Skwentna, Alaska | 33 km |
| 8d 前 | M1.1 | 55 km SSW of Skwentna, Alaska | 35 km |
| 8d 前 | M0.2 | 56 km SSW of Skwentna, Alaska | 34 km |
| 8d 前 | M1.8 | 44 km W of Tyonek, Alaska | 32 km |
| 8d 前 | M0.9 | 54 km SSW of Skwentna, Alaska | 35 km |
| 8d 前 | M-0.1 | 56 km SSW of Skwentna, Alaska | 34 km |
| 8d 前 | M0.6 | 56 km SSW of Skwentna, Alaska | 33 km |
| 8d 前 | M2.0 | 37 km NNW of Beluga, Alaska | 48 km |
| 9d 前 | M0.7 | 69 km WNW of Tyonek, Alaska | 5.2 km |
| 9d 前 | M2.0 | 28 km NW of Beluga, Alaska | 42 km |
| 10d 前 | M-0.4 | 60 km W of Tyonek, Alaska | 15 km |
| 10d 前 | M0.3 | 66 km WNW of Beluga, Alaska | 2.6 km |
| 10d 前 | M2.1 | 46 km WNW of Tyonek, Alaska | 19 km |
| 10d 前 | M2.1 | 65 km WNW of Beluga, Alaska | 17 km |
| 10d 前 | M-0.6 | 58 km WNW of Beluga, Alaska | 9.2 km |
| 11d 前 | M0.5 | 71 km WNW of Beluga, Alaska | 12 km |
| 11d 前 | M1.4 | 66 km WNW of Beluga, Alaska | 11 km |
| 11d 前 | M0.5 | 65 km WNW of Beluga, Alaska | 4.1 km |
| 12d 前 | M0.6 | 59 km WNW of Beluga, Alaska | 6.0 km |
| 12d 前 | M0.7 | 66 km WNW of Tyonek, Alaska | 11 km |
| 13d 前 | M0.7 | 55 km WNW of Tyonek, Alaska | 11 km |
| 13d 前 | M0.5 | 70 km WNW of Tyonek, Alaska | 5.7 km |
| 14d 前 | M-0.2 | 80 km WNW of Tyonek, Alaska | 15 km |
| 14d 前 | M0.9 | 72 km WNW of Beluga, Alaska | 15 km |
| 14d 前 | M0.5 | 91 km W of Tyonek, Alaska | 34 km |
| 14d 前 | M1.9 | 61 km W of Tyonek, Alaska | 24 km |
| 14d 前 | M0.4 | 59 km WNW of Beluga, Alaska | 16 km |
| 15d 前 | M0.0 | 63 km W of Tyonek, Alaska | 19 km |
| 15d 前 | M0.2 | 60 km WNW of Beluga, Alaska | 17 km |
| 15d 前 | M-0.0 | 59 km WNW of Beluga, Alaska | 17 km |
| 15d 前 | M0.1 | 62 km WNW of Beluga, Alaska | 16 km |
| 16d 前 | M2.0 | 28 km NW of Beluga, Alaska | 42 km |
| 17d 前 | M0.6 | 67 km WNW of Tyonek, Alaska | 8.3 km |
| 17d 前 | M-0.7 | 59 km WNW of Beluga, Alaska | 8.7 km |
| 18d 前 | M0.0 | 58 km WNW of Beluga, Alaska | 17 km |
| 18d 前 | M0.1 | 69 km WNW of Tyonek, Alaska | 11 km |
| 18d 前 | M0.8 | 78 km WNW of Tyonek, Alaska | 14 km |
| 18d 前 | M1.0 | 40 km WSW of Tyonek, Alaska | 39 km |
| 18d 前 | M-0.3 | 69 km WNW of Beluga, Alaska | 4.9 km |
| 18d 前 | M0.4 | 67 km WNW of Beluga, Alaska | 4.0 km |
| 18d 前 | M-0.7 | 69 km WNW of Tyonek, Alaska | 5.0 km |
| 18d 前 | M0.8 | 70 km WNW of Tyonek, Alaska | 6.3 km |
| 18d 前 | M0.7 | 70 km WNW of Tyonek, Alaska | 5.5 km |
| 18d 前 | M0.7 | 73 km WNW of Beluga, Alaska | 9.1 km |
| 18d 前 | M1.7 | 65 km W of Tyonek, Alaska | 29 km |
| 19d 前 | M1.5 | 30 km W of Tyonek, Alaska | 40 km |
| 20d 前 | M1.4 | 41 km WNW of Tyonek, Alaska | 25 km |
| 20d 前 | M1.8 | 21 km WNW of Beluga, Alaska | 44 km |
| 20d 前 | M1.5 | 61 km W of Tyonek, Alaska | 30 km |
| 20d 前 | M-0.3 | 84 km W of Tyonek, Alaska | 25 km |
| 21d 前 | M-0.6 | 57 km WNW of Tyonek, Alaska | 8.2 km |
| 21d 前 | M1.1 | 65 km WNW of Beluga, Alaska | 3.4 km |
| 21d 前 | M1.3 | 43 km WNW of Tyonek, Alaska | 22 km |
| 22d 前 | M-0.6 | 57 km WNW of Beluga, Alaska | 8.8 km |
| 22d 前 | M1.3 | 59 km W of Tyonek, Alaska | 15 km |
| 22d 前 | M0.5 | 67 km WNW of Tyonek, Alaska | 4.5 km |
| 22d 前 | M1.1 | 39 km NW of Beluga, Alaska | 41 km |
| 23d 前 | M-0.3 | 65 km W of Tyonek, Alaska | 31 km |
| 23d 前 | M0.0 | 90 km W of Tyonek, Alaska | 33 km |
| 23d 前 | M0.6 | 63 km NW of Beluga, Alaska | 25 km |
| 23d 前 | M-0.8 | 68 km WNW of Tyonek, Alaska | 3.9 km |
| 23d 前 | M1.0 | 72 km WNW of Tyonek, Alaska | 13 km |
| 23d 前 | M0.4 | 58 km WNW of Tyonek, Alaska | 7.7 km |
| 23d 前 | M1.8 | 44 km SSW of Skwentna, Alaska | 48 km |
| 24d 前 | M-0.6 | 57 km WNW of Beluga, Alaska | 8.5 km |
| 24d 前 | M2.2 | 49 km SSW of Skwentna, Alaska | 45 km |
| 24d 前 | M-0.5 | 61 km W of Tyonek, Alaska | 14 km |
| 24d 前 | M-0.6 | 63 km WNW of Tyonek, Alaska | 12 km |
| 24d 前 | M0.6 | 49 km WNW of Tyonek, Alaska | 19 km |
| 25d 前 | M2.3 | 47 km WNW of Beluga, Alaska | 23 km |
| 25d 前 | M-0.0 | 56 km WNW of Tyonek, Alaska | 9.7 km |
| 25d 前 | M1.1 | 32 km WNW of Tyonek, Alaska | 33 km |
| 25d 前 | M-0.1 | 57 km W of Tyonek, Alaska | 24 km |
| 26d 前 | M1.8 | 38 km WSW of Tyonek, Alaska | 41 km |
| 26d 前 | M1.8 | 64 km WNW of Tyonek, Alaska | 1.5 km |
| 27d 前 | M0.7 | 64 km WNW of Beluga, Alaska | 2.5 km |
| 27d 前 | M0.8 | 72 km WNW of Beluga, Alaska | 14 km |
| 27d 前 | M0.6 | 66 km WNW of Beluga, Alaska | 2.5 km |
| 28d 前 | M-0.4 | 58 km WNW of Beluga, Alaska | 8.9 km |
| 29d 前 | M1.1 | 42 km SW of Skwentna, Alaska | 47 km |
| 29d 前 | M0.8 | 60 km W of Tyonek, Alaska | 29 km |
| 29d 前 | M-0.2 | 64 km W of Tyonek, Alaska | 18 km |
| 29d 前 | M-0.1 | 41 km WNW of Beluga, Alaska | 23 km |
| 30d 前 | M0.9 | 63 km WNW of Nikiski, Alaska | 37 km |
| 30d 前 | M-0.5 | 70 km WNW of Tyonek, Alaska | 5.4 km |
| 30d 前 | M-0.8 | 68 km WNW of Tyonek, Alaska | 5.2 km |
| 30d 前 | M0.4 | 69 km WNW of Tyonek, Alaska | 5.2 km |
| 30d 前 | M-0.7 | 69 km WNW of Tyonek, Alaska | 5.2 km |
| 31d 前 | M1.8 | 65 km SW of Skwentna, Alaska | 32 km |
| 31d 前 | M-0.4 | 70 km WNW of Tyonek, Alaska | 5.4 km |
| 32d 前 | M-0.6 | 70 km WNW of Tyonek, Alaska | 5.6 km |
| 32d 前 | M0.1 | 66 km WNW of Beluga, Alaska | 3.6 km |
| 32d 前 | M-0.1 | 58 km WNW of Beluga, Alaska | 14 km |
| 33d 前 | M-0.4 | 64 km WNW of Beluga, Alaska | 2.2 km |
| 33d 前 | M-0.4 | 69 km WNW of Tyonek, Alaska | 5.6 km |
| 33d 前 | M0.1 | 60 km WNW of Tyonek, Alaska | 5.4 km |
| 33d 前 | M1.9 | 45 km WSW of Tyonek, Alaska | 43 km |
| 33d 前 | M2.0 | 19 km WNW of Beluga, Alaska | 46 km |
| 34d 前 | M2.4 | 56 km WNW of Nikiski, Alaska | 49 km |
| 35d 前 | M-0.3 | 60 km W of Tyonek, Alaska | 14 km |
| 35d 前 | M1.9 | 61 km WNW of Nikiski, Alaska | 40 km |
| 35d 前 | M1.4 | 24 km NW of Beluga, Alaska | 46 km |
| 36d 前 | M1.4 | 50 km NNW of Beluga, Alaska | 43 km |
| 36d 前 | M0.5 | 83 km SW of Skwentna, Alaska | 22 km |
| 36d 前 | M0.5 | 49 km SSW of Skwentna, Alaska | 42 km |
| 36d 前 | M0.5 | 54 km W of Tyonek, Alaska | 18 km |
| 36d 前 | M1.2 | 57 km SSW of Skwentna, Alaska | 32 km |
| 36d 前 | M0.3 | 61 km WNW of Tyonek, Alaska | 13 km |
| 37d 前 | M0.5 | 53 km SW of Skwentna, Alaska | 36 km |
| 38d 前 | M1.2 | 35 km WNW of Beluga, Alaska | 29 km |
| 38d 前 | M-0.5 | 58 km WNW of Beluga, Alaska | 9.3 km |
| 38d 前 | M-0.6 | 56 km WNW of Beluga, Alaska | 9.9 km |
| 38d 前 | M1.1 | 30 km WNW of Tyonek, Alaska | 34 km |
| 38d 前 | M2.6 | 40 km SSW of Skwentna, Alaska | 50 km |
| 39d 前 | M0.5 | 56 km SSW of Skwentna, Alaska | 33 km |
| 39d 前 | M1.4 | 53 km WNW of Tyonek, Alaska | 17 km |
| 39d 前 | M1.4 | 32 km WNW of Beluga, Alaska | 32 km |
| 39d 前 | M1.6 | 30 km NW of Beluga, Alaska | 41 km |
| 39d 前 | M-0.3 | 58 km WNW of Beluga, Alaska | 9.7 km |
| 39d 前 | M-0.4 | 65 km WNW of Beluga, Alaska | 4.3 km |
| 39d 前 | M0.6 | 64 km W of Tyonek, Alaska | 19 km |
| 39d 前 | M-0.2 | 64 km WNW of Beluga, Alaska | 6.4 km |
| 39d 前 | M-0.4 | 57 km WNW of Beluga, Alaska | 9.4 km |
| 39d 前 | M-0.4 | 68 km WNW of Tyonek, Alaska | 4.2 km |
| 39d 前 | M-0.4 | 67 km WNW of Beluga, Alaska | 4.6 km |
| 40d 前 | M2.1 | 63 km WNW of Nikiski, Alaska | 40 km |
| 40d 前 | M-0.6 | 53 km WNW of Tyonek, Alaska | 12 km |
| 40d 前 | M0.1 | 72 km WNW of Beluga, Alaska | 7.9 km |
| 40d 前 | M-0.5 | 59 km W of Tyonek, Alaska | 15 km |
| 40d 前 | M0.8 | 66 km WNW of Tyonek, Alaska | 1.8 km |
| 40d 前 | M0.6 | 67 km WNW of Beluga, Alaska | 3.5 km |
| 41d 前 | M0.3 | 72 km WNW of Tyonek, Alaska | 14 km |
| 41d 前 | M0.5 | 60 km W of Tyonek, Alaska | 14 km |
| 42d 前 | M0.6 | 52 km WNW of Beluga, Alaska | 21 km |
| 42d 前 | M0.3 | 60 km W of Tyonek, Alaska | 30 km |
| 42d 前 | M-0.6 | 64 km WNW of Beluga, Alaska | 1.2 km |
| 42d 前 | M-0.5 | 66 km WNW of Beluga, Alaska | 2.4 km |
| 42d 前 | M1.2 | 46 km WNW of Beluga, Alaska | 20 km |
| 42d 前 | M-0.5 | 61 km WNW of Beluga, Alaska | 4.1 km |
| 42d 前 | M0.6 | 38 km NW of Beluga, Alaska | 35 km |
| 43d 前 | M-0.6 | 69 km WNW of Tyonek, Alaska | 5.5 km |
| 43d 前 | M-0.7 | 69 km WNW of Tyonek, Alaska | 5.9 km |
| 43d 前 | M-0.3 | 69 km WNW of Tyonek, Alaska | 4.9 km |
| 43d 前 | M-0.3 | 69 km WNW of Tyonek, Alaska | 4.5 km |
| 43d 前 | M1.6 | 39 km WNW of Beluga, Alaska | 27 km |
| 44d 前 | M-0.5 | 70 km WNW of Tyonek, Alaska | 6.1 km |
地質およびテクトニックプロファイル
成層火山スパー山は沈み込み帯 / 大陸地殻 (> 25 km)で形成された活発な成層火山です。主要岩石: 安山岩 / 玄武岩質安山岩。
火山形態成層火山
主要岩石安山岩 / 玄武岩質安山岩
テクトニクス沈み込み帯
火山弧Alaska Peninsula火山弧
火山カルテ
VN #313040公式カタログの諸元、座標、標高、地質構造分類。
国アメリカ合衆国
火口の座標61.299°, -152.251°
山頂標高3.4 km
サブリージョンAlaska Peninsula火山弧
カタログ提供元Smithsonian GVP (#313040)
よくあるご質問（FAQ）
検証済みの科学的・運用面・緊急対応プロトコル
スミソニアン Global Volcanism Program が記録するスパー山の直近の噴火は1992年です。
カタログ: スミソニアン協会 Global Volcanism Program。Smithsonian GVP のページ