EarthChem Home
Decade Home
About EarthChem
Overview
News
About DECADE
Help
Login
Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Dawson Strait Group
The Dawson Straits, seen in this NASA Landsat image, is located between eastern Fergusson Island (upper left) and northwestern Normanby Island (lower left) in the D'Entrecasteaux island group. The area contains a volcanic field with several young volcanic centers that erupted rhyolitic obsidian flows. Mount Oiau is located on the narrow peninsula (left center) forming the southernmost point on Fergusson Island. A large crater is visible on Dobu Island, southeast of Oiau. Young volcanic rocks are also found on Sanaroa Island (upper right). NASA Landsat 7 image (worldwind.arc.nasa.gov)
Volcano Number:
253060
Volcano Name:
Dawson Strait Group
Country:
Papua New Guinea
Volcano Type:
Volcanic field
Last Eruption:
1350 CE
Elevation:
500m
Tectonic Setting:
Subduction zone / Continental crust (> 25 km)
Pop. within 5km:
5388
Pop. within 10km:
5388
Pop. within 30km:
7721
Pop. within 100km:
80476
Latitude:
-9.62
Longitude:
150.88
Details
Hide
The Dawson Straits, located between eastern Fergusson and western Normanby Islands in the D'Entrecasteaux island group, contains a volcanic field with several centers that define a possible partly submerged caldera. There have been no historical eruptions, but morphology suggests an extremely young age for some lava flows, and the area displays vigorous thermal activity. The most prominent volcanic centers are Mounts Lamonai and Oiau, located about 10 km apart on the SW tip of Fergusson Island. The summit of Lamonai is capped by a steep-walled crater, and rhyolitic lava flows are exposed on the NE side of the cone. The dominantly volcaniclastic Oiau cone has also produced obsidian lava flows. Dobu Island to the south is formed of coalescing volcanic centers and likewise has produced youthful rhyolitic obsidian flows.
Download XLS
Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Show 1 Results
Hide Results
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.
Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
Sorry. No data exist for this volcano in the EarthChem Portal.
Data from the SESAR Database
Sorry. No data exist for this volcano in the SESAR database.
Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.
Data from UNAVCO
Sorry. No data exist for this volcano in the UNAVCO database.
Data from USIEI
Sorry. This volcano is not covered by any USIEI projects
Data from IRIS FDSNWS
Show 8 Results
Hide Results