Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Agrigan
Clouds drape the flat-topped summit of Agrigan, the highest of the Marianas arc volcanoes, in this view from the south. The elliptical island is 8 km long; its 965-m-high summit is the top of a massive 4000-m-high submarine volcano, the second largest in the Mariana Islands. An elongated summit caldera is 1 x 2 km wide, 500 m deep, and is breached to the NW. The vegetated flanks of the volcano consist almost entirely of pyroclastic deposits that are more than 100 m thick on the SW flank. Photo by Dick Moore, 1990 (U.S. Geological Survey).
Volcano Number:284160
Volcano Name:Agrigan
Country:United States
Volcano Type:Stratovolcano
Last Eruption:1917 CE
Elevation:965m
Tectonic Setting:Subduction zone / Crustal thickness unknown
Pop. within 5km:0
Pop. within 10km:0
Pop. within 30km:0
Pop. within 100km:0
Latitude:18.77
Longitude:145.67



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
284160 Agrigan 18502 Confirmed Eruption 4 Historical Observations 1917/4/9
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Title Author Release Date DOI Link
Bulk rock data for Marianas arc tephra Plank, Terry 2020-11-05 10.26022/IEDA/111736 Details
Melt Inclusion data from the Marianas and Izu volcanic arcs, and Mariana Trough back-arc basin Hauri, Erik 2021-06-29 10.26022/IEDA/112036 Details
Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Error. The MaGa Web Services (http://www.magadb.net/web_services/) are down.