Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
17-23 Mar 2018: Kilauea Volcano Special - Big Island, Hawaiʻi
17-23 Mar 2018: Pele´s Fire and Myths - Big Island, Hawaiʻi
28 Apr - 3 May 2018: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
5-13 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
12-20 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
19-27 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
9-17 Jun 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
24 Jun - 1 Jul 2018: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
12-14 Jul 2018: Krakatau Volcano Special - Krakatau volcano, Sunda Strait
15-31 Jul 2018: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
News

no news in this list.

 

Signal Peak volcano

shield volcano 1555 m / 5,102 ft
Washington, USA (mainland exept Alaska), 46.23°N / -121.14°W
Current status: (probably) extinct (0 out of 5) | Reports
Signal Peak volcano books
Typical eruption style: ? effusive lava flows
Signal Peak volcano eruptions: ca. 1-0.5 million years ago
TimeMag. / DepthDistanceLocation
Tue, 13 Feb
Tue, 13 Feb 21:17 UTCM 0.9 / 0.7 km37 kmExplosion - 19km WSW of Ahtanum, Washington
Sat, 30 Dec
Sat, 30 Dec 05:16 UTCM 1.1 / 12.4 km23 km- 32km SW of Toppenish, Washington
Signal Peak is the eroded remnant of a small andesitic stratovolcano overlying the southern part of the basaltic shield of the Lincoln Plateau.
Together with still active Mount Adams volcano to the west and the older Simcoe volcanic field of cinder cones to the east, it is part of a larger volcanic province that has been active for perhaps as much as 5 million years in the area.

Background:

Source:
Geologic Map of the Mount Adams Quadrangle, Washington. Compiled by M.A.Korosec, Washington Division of Geology and Earth Resources Open File Report 87-5 (1987)
Available for download at: www.osti.gov/bridge/index.jsp


Latest satellite images

 

More on VolcanoDiscovery:

 
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.