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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Behm Canal-Rudyerd Bay
Scoria cones and columnar-jointed lava flows of the Behm Canal-Rudyerd Bay volcanic field occur on either side of Behm Canal (down the center of this image), shown in this October 2020 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 20 km across). The majority of outcrops have been found on Revillagigedo Island (left), and additional features are on Rudyerd Island (near the center). Satellite image courtesy of Planet Labs Inc., 2020 (https://www.planet.com/).
Volcano Number:
315070
Volcano Name:
Behm Canal-Rudyerd Bay
Country:
United States
Volcano Type:
Volcanic field
Elevation:
500m
Tectonic Setting:
Intraplate / Continental crust (> 25 km)
Pop. within 30km:
6
Pop. within 100km:
15569
Latitude:
55.35
Longitude:
-131
Details
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Numerous basaltic cinder cones and lava flows occur in the panhandle of SE Alaska on both sides of Behm Canal, which divides Revillagigedo Island from the mainland. The lava flows, which are locally columnar-jointed and overlie glacial-fluvial sediments and granitic gneisses of the Coast Mountains, are located on the E and SE sides of Revillagigedo Island and at Rudyerd Bay across Behm Canal to the east. Most exposures are on SE Revillagigedo Island, but outcrops also occur on the mainland east of Behm Canal at the southern end of Punchbowl Cove at Rudyerd Bay. Undisturbed cinder cones and lava-flow surfaces at Painted Peak on SE Revillagigedo Island and elsewhere indicate that most of the activity was post-glacial (Brew, in Wood and Kienle, 1990). Pumice, lapilli, and ash deposits locally cover parts of glaciated ridge tops. Lava flows at the outlet of Lake Grace near Behm Canal on the eastern side of Revillagigedo Island were considered to be of late-Pleistocene or Holocene age (Wanek and Callahan, 1971). Minor andesitic and trachyandesitic flows are also present.
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No erruption data found for this volcano.
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
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Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
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Data from the SESAR Database
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Data from the MaGa Database
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Data from UNAVCO
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Data from USIEI
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Data from IRIS FDSNWS
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