Data from the Global Volcanism Program of the Smithsonian Institution
Details for: San Jorge
Pico da Velha is seen in this view of the interior of the island of San Jorge. The remarkably linear island (also known as Sao Jorge) is 54 km long and only 5 km wide. It was formed by fissure-fed eruptions beginning in the eastern part of the island, and the western two-thirds of the island contains youthful, fissure-fed lava flows resembling those on neighboring Pico Island. Historical eruptions have produced lava flows that reached the sea, and submarine eruptions were reported from vents off the southern and SW coasts. Photo by Luís A. da Silveira, 2007 (Wikimedia Commons).
Volcano Number:382030
Volcano Name:San Jorge
Country:Portugal
Volcano Type:Fissure vent
Last Eruption:1907 CE
Elevation:1053m
Tectonic Setting:Rift zone / Oceanic crust (< 15 km)
Pop. within 5km:2088
Pop. within 10km:4689
Pop. within 30km:16290
Pop. within 100km:99442
Latitude:38.65
Longitude:-28.08



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
382030 San Jorge 12991 Confirmed Eruption 3 ? Sao Jorge (SW side) Historical Observations 1580/5/1 1580/8/30
382030 San Jorge 12992 Confirmed Eruption 0 Off south coast of Sao Jorge Historical Observations 1757/7/9 1757/7/10
382030 San Jorge 12993 Confirmed Eruption 2 Subm. vent ca. 20 km SW of Terceira Historical Observations 1800/6/24 1800/6/25
382030 San Jorge 12994 Confirmed Eruption 1 Sao Jorge Historical Observations 1808/5/1 1808/6/10
382030 San Jorge 12995 Confirmed Eruption 0 Subm. vent ca. 20 km SW of Terceira Historical Observations 1902/5/7 1902/5/8
382030 San Jorge 12996 Confirmed Eruption 0 Historical Observations 1907
382030 San Jorge 12997 Uncertain Eruption 0 Off SW coast 1964/2/18
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
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Data from the SESAR Database
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Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.