What kind of volcano is 胡德山?

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

How is seismicity near 胡德山 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

美国→

Volcano 胡德山

胡德山是俄勒冈州最高峰，距波特兰约80公里，被美国地质调查局列为“极高威胁”火山。它最近一次较大规模的喷发发生在18世纪末，泥石流顺桑迪河一直冲入哥伦比亚河；如今，它的冰川为该地区供水，山坡上遍布滑雪道，山下频繁的小型地震群不断提醒人们它仍是活火山。

Last Eruption

1866

Historical eruption

Summit Elevation

3.4 km

复合成层火山 · 安山岩 / 玄武安山岩

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.

时间	震级	震中 / 地点	距离	深度
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

复合成层火山

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

Edifice Type复合成层火山

Major Rock安山岩 / 玄武安山岩

Tectonic Setting俯冲带

Volcanic Arc高喀斯喀特火山弧

Volcanic Dossier

VN #322010

Official catalogue parameters, coordinates, elevation and geotectonic classification.

国家美国

火山口坐标45.374°, -121.695°

Summit Elevation3.4 km

Subregion高喀斯喀特火山弧

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 →

区域地震特征档案

卡斯卡迪亚与太平洋西北地区

Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for 卡斯卡迪亚与太平洋西北地区.

打开区域监控中心

常见问题（FAQ）

经过验证的科学、运行与应急规程

The most recent eruption of 胡德山 recorded by the Smithsonian Global Volcanism Program was in 1866.

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