Udonejima volcano
Updated: Nov 28, 2023 12:18 GMT -
Stratovolcano 209 m / 686 ft
Izu Islands, Japan, 34.47°N / 139.3°E
Current status: (probably) extinct (0 out of 5)
Izu Islands, Japan, 34.47°N / 139.3°E
Current status: (probably) extinct (0 out of 5)
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Udonejima volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene)
Latest nearby earthquakes
| Time | Mag. / Depth | Distance/Location | ||
| Sunday, November 26, 2023 GMT (2 quakes) | ||||
| Nov 26, 09:02 am (GMT +9) (Nov 26, 00:02 GMT) | 2.9 6 km | 33 km (21 mi) 28 km southeast of Itō, Prefectura de Shizuoka, Japan | ||
| Nov 26, 09:02 am (GMT +9) (Nov 26, 00:02 GMT) | 2.9 6 km | 33 km (21 mi) 28 km southeast of Itō, Prefectura de Shizuoka, Japan | ||
Background
Udonejima, though techincally part of the Izu Volcanic Arc, is actually considered to be situated just behind the true volcanic front, along a line of volcanoes that is oblique to the Izu Trench. The volcanic rocks of this lineament are characterized by high-alumina basalts, calc-alkaline basalts, andesites, and rhyolites (Onuma et al., 1983). The andesites are rich in pyroxene, and the rhyolites often contain hypersthene, hornblende, and biotite (Onuma et al., 1983).---
Source: Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS
