Kontakt | RSS | EN | DE | EL | ES | FR | IT | RU

Mount Adams Vulkan

Aktualisiert: 4. Feb. 2023 06:57 GMT -
Schichtvulkan 3742 m / 12,277 ft
Washington State (Canada and USA (mainland)), 46.21°N / -121.49°W
Aktueller Status: normal / ruhend (1 von 5)

Mt Adams stratovolcano 50 km east of Mt St Helens volcano is the by volume second largest volcano of the Cascades Range, after Mt. Shasta.
Mount Adams is the center of a 200 km3 volcanic field. The andesitic-dacitic volcano was built by several overlapping cones. It is elongated along a NNW-SSE line and has a flat summit with an ice cap and more than 60 flank vents.
The upper region of Mount Adams comprises 10 glaciers, barren moraines, and alpine meadows. Below 2000 m elevation, most of the volcano is covered by dense forest.
Mt Adams is popular among climbers and hikers. The only settlements near the volcano are Trout Lake and Glenwood villages, which are the base for excursions during the summer months. The nearest larger towns are Yakima (85 km NE), Goldendale (65 km SE), White Salmon-Hood River (55 km S), and Portland-Vancouver (100 km SW).

Interaktive Karte anzeigen
Typische Aktivität: Explosive / effusive
Ausbrüche des Mount Adams: 950(?), 200(?), 300 BC (?), 400 BC (?), 550 BC ± 1000, 1850 BC, 2650 BC ± 300, 2950 BC ± 100, 3250 BC ± 300, 3550 BC (?), 3800 BC ± 1000, 4050 BC ± 500, 4550 BC (?), 5150 BC ± 500, 7050 BC ± 1000

Letzte Erdbeben in der Nähe

No recent earthquakes

Beschreibung

Volcanism at Adams volcano began about 940 thousand years ago (ka), with 3 main cone-building stages occurring at about 500, 450 and 30 ka. Adams was active throughout the past 10,000 years: about 25 minor explosive eruptions from summit and flank vents can be traced by ash deposits and 6 lava flows from that period are found on the flanks between 2100 and 2600 m altitude. The largest Holocene lava flow traveled at least 10 km and occurred between about 7,000-4,000 years ago.
The most recent eruption occurred about 1000 years ago (radio-carbon dated). It was a relatively small explosive eruption, recognizable as the uppermost ash layer in the area.
A study of postglacial activity suggests future eruptions may occur as strombolian, phreatomagmatic, or phreatic.
A larger hazard is posed by possible flank sector collapse, which would produce a catastrophic debris flow, similar to what happened at Mt. St. Helens in 1980.
An example of such a large debris-avalanche deposit is the Trout Lake Mudflow found high on the southwest side of the summit. It has been radiocarbon-dated to have occurred about 5100–5300 years ago. Trout Lake Mudflow was a single, massive avalanche that reached up to 60 km from the source.
A third hazard are lahars (mud flows) which would be generated by melted ice by an eruption.

20 Oct 1997 rock avalance reaching 5 km on east flank
A large rock avalanche with a volume between 1-5 million m3 of rock happened on the morning of 20 October on the uninhabited east flank of Mt Adams. It traveled 5 km and lasted several minutes.
The avalanche temporarily dammed Big Muddy Creek to form a temporary lake, but did not cause damage to structures or life, because there are no settlements in the area. ...mehr

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Keine News in dieser Ansicht.

App herunterladen
Volcanoes & Earthquakes - new app for Android
Android | iOS-Version

Mehr auf VolcanoDiscovery

Unterstützen Sie unsere Arbeit!

Diese Webseite und die dazugehörigen Apps und Tools instandzuhalten und kostenlos Nachrichten zu Vulkanen, Erdbeben und anderen Themen bereitzustellen, verschlingt enorm viel Zeit und auch Geld.
Wenn Sie die Infos mögen und uns in der Arbeit dazu unterstützen wollen, würden wir uns über eine Spende (über PayPal oder mit Kreditkarte) sehr freuen.
Online Zahlung (Kreditkarte)
Damit können wir Ihnen auch in Zukunft neue Features entwickeln und Bestehende laufend verbessern.Vielen Dank!
Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.
Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.
Volcanoes & Earthquakes
VolcanoDiscovery Home
Vulkane | Erdbeben | Fotos | News | App
Adventure & Study Travel
Reisen zu Vulkanen und Vulkangebieten: Wanderreisen, Studienreisen, Fotoreisen
Tours & Dates | FAQ | About us
Get our newsletter!
Company info
Kontakt | Impressum | AGB
Follow us
Follow us on facebook Follow us on Instagram Follow us on Twitter Visit our Youtube channel
EN | DE | EL | ES | FR | IT | RU
VolcanoDiscovery GmbH, Germany, Reg. nr.: HRB 103744, EU Tax Id: DE 310 395 322 owned and created by
Dr. Tom Pfeiffer, volcanologist, volcano photographer, tour organizer member of
IAVCEI
Volcanological Society
Ecotourism Greece
Insured by R+V
VolcanoDiscovery © 2004- All Rights Reserved | Datenschutz