Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Furnas
Furnas volcano, at the eastern end of Sao Miguel Island, contains at least two calderas. The younger 6-km-wide caldera is seen here from its northern rim. At least 11 trachytic pumice layers, all erupted during the past 5000 years, post-date the caldera. A zone of late-Pleistocene to Holocene basaltic-to-trachytic cinder cones and lava domes is located between Furnas and neighboring Agua de Pau volcano. The only historical eruption of Furnas volcano, during 1630, was one of the largest Holocene eruptions in the Azores. Photo by Rick Wunderman, 1997 (Smithsonian Institution).
Volcano Number:382100
Volcano Name:Furnas
Country:Portugal
Volcano Type:Stratovolcano
Last Eruption:1630
Elevation:805m
Tectonic Setting:Rift zone / Oceanic crust (< 15 km)
Pop. within 5km:1333
Pop. within 10km:7310
Pop. within 30km:87865
Pop. within 100km:153182
Latitude:37.77
Longitude:-25.32



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
382100 Furnas 13034 Confirmed Eruption East rim of caldera (Pico do CanĂ¡rio) Radiocarbon (uncorrected) -4570
382100 Furnas 13035 Confirmed Eruption Tephra layer A Tephrochronology -1670
382100 Furnas 13036 Confirmed Eruption Tephra layer B Radiocarbon (uncorrected) -360
382100 Furnas 13037 Confirmed Eruption 5 N floor of younger caldera Tephra layer C Radiocarbon (uncorrected) 80
382100 Furnas 13038 Confirmed Eruption 4 Center of caldera (Gaspar) Tephra layer F Radiocarbon (uncorrected) 840
382100 Furnas 13039 Confirmed Eruption 4 E caldera floor (Lake crater) Tephra layer G Radiocarbon (uncorrected) 1170
382100 Furnas 13040 Confirmed Eruption 3 East caldera floor Tephra layer H Radiocarbon (uncorrected) 1430
382100 Furnas 13041 Confirmed Eruption 4 Center of caldera (Gaspar) Tephra layer I Historical Observations 1441
382100 Furnas 13042 Confirmed Eruption 5 South end of caldera (Pico da Areia) Historical Observations 1630/9/3 1630/11/2
Emissions Data from the Global Volcanism Program of the Smithsonian Institution No emissions data found for this volcano.


Data from the Earthchem Portal


Data from the SESAR Database