What kind of volcano is フッド山?

フッド山 is classified as a Stratovolcano in United States. Its tectonic setting is Subduction zone / Continental crust (> 25 km).

How is seismicity near フッド山 monitored here?

Earthquakes within 50 km of the crater are aggregated from 18 seismic networks and checked against a swarm rule that compares the current rate with this volcano's own 30-day background. Ash advisories come from the VAAC centres that are connected.

Glaciated summit of Mount Hood rising above Oregon forests

Photo:Richard Fiskevia Smithsonian GVP

Volcano Dossier•GVP #322010

45.37°N, 121.69°W

Historical eruption

アメリカ合衆国→

Volcano フッド山

オレゴン州の最高峰で、ポートランドから約80 kmの所にあり、米国地質調査所（USGS）は「非常に高い脅威」の火山に分類しています。1700年代後半の最後の大きな噴火では泥流がサンディ川を下ってコロンビア川まで達しました。今では氷河が地域の水源となり、山腹にはスキー場が広がり、山の下で起きる小さな群発地震が今も活動中であることを思い出させます。

Last Eruption

1866

Historical eruption

Summit Elevation

3.4 km

成層火山 · 安山岩 / 玄武岩質安山岩

Seismic State

Normal Baseline

0 events (1.0x rate)

Interactive Volcano & Seismicity Map

Seismicity within 50 km radius, active VAAC ash plumes, and tectonic plate boundaries.

Recent seismicity within 50 km

0 events in the last 12 h within 25 km of the crater.

時刻	マグニチュード	震央・場所	距離	震源の深さ
7d 前	M1.2	3 km S of Carson, Washington	36 km	10.8 km
8d 前	M0.8	6 km ENE of Government Camp, Oregon	4.9 km	6.5 km
8d 前	M0.9	8 km NNE of Government Camp, Oregon	0.6 km	1.2 km
9d 前	M1.1	6 km ENE of Government Camp, Oregon	5.7 km	6.0 km
23d 前	M0.8	9 km NNE of Government Camp, Oregon	1.9 km	1.8 km
28d 前	M0.1	6 km NE of Government Camp, Oregon	4.1 km	4.7 km
31d 前	M1.4	9 km NNE of Government Camp, Oregon	0.9 km	0.0 km
35d 前	M1.5	7 km NW of Mount Hood Village, Oregon	28 km	0.6 km
40d 前	M0.2	9 km NNE of Government Camp, Oregon	0.3 km	0.9 km
40d 前	M1.1	4 km ENE of Government Camp, Oregon	6.1 km	5.3 km
40d 前	M1.2	4 km ENE of Government Camp, Oregon	6.1 km	5.2 km
46d 前	M0.0	7 km ENE of Government Camp, Oregon	5.3 km	6.0 km
47d 前	M0.3	6 km NE of Government Camp, Oregon	4.2 km	4.8 km
62d 前	M0.9	3 km NW of Mount Hood Village, Oregon	25 km	-1.2 km
70d 前	M0.1	8 km NNE of Government Camp, Oregon	0.7 km	1.6 km
71d 前	M0.2	8 km NE of Government Camp, Oregon	0.6 km	1.9 km
89d 前	M0.7	0 km N of Government Camp, Oregon	8.4 km	7.3 km

Geological & Tectonic Profile

成層火山

フッド山 is an active Stratovolcano formed in an active Subduction zone / Continental crust (> 25 km). Dominant lithology: Andesite / Basaltic Andesite.

Edifice Type成層火山

Major Rock安山岩 / 玄武岩質安山岩

Tectonic Setting沈み込み帯

Volcanic Arcハイカスケード火山弧

Volcanic Dossier

VN #322010

Official catalogue parameters, coordinates, elevation and geotectonic classification.

国アメリカ合衆国

火口の座標45.374°, -121.695°

Summit Elevation3.4 km

Subregionハイカスケード火山弧

Catalog SourceSmithsonian GVP (#322010)

Authoritative Monitoring Infrastructure

All 18 Networks & VAAC →

Seismic ObservatoryUSGS VHP

USGS Volcano Hazards Program (HVO / CVO / AVO)

Official Portal

ICAO Aviation Ash Center

Washington VAAC (NOAA / NESDIS)

College Park, MD, USA

VAAC Advisory Desk

Swarm telemetry correlated across 18 networks against a 30-day baseline.Read Science & Physics →

地域地震プロファイル

カスケード沈み込み帯・米北西部

Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for カスケード沈み込み帯・米北西部.

地域ハブを開く

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

The most recent eruption of フッド山 recorded by the Smithsonian Global Volcanism Program was in 1866.

Catalogue: Smithsonian Institution, Global Volcanism Program.Smithsonian GVP profile