Isla Tortuga
Schildvulkan 210+ m / 689 ft
Baja California, Mexico, 27.43°N / -111.88°W
Aktueller Status: normal / ruhend (1 von 5)
Baja California, Mexico, 27.43°N / -111.88°W
Aktueller Status: normal / ruhend (1 von 5)
Isla Tortuga volcano is a young basaltic shield volcano that forms the small 4 km wide island of the same name located 40 km off the Baja coast in the Gulf of California.
The volcano has a circular summit caldera, about 100 m deep, containing a frozen lava and several cinder cones from probably relatively recent eruptions. Young lava flows cover most of the volcano's flanks. At present, there is fumarolic activity.
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Ausbrüche: unknown, less than 10,000 years ago
Letzte Erdbeben in der Nähe: Keine jüngeren Beben
Beschreibung
The shield volcano was constructed during 2 north-migrating periods of activity that began with submarine eruptions and included formation of a circular tuff-ring complex enclosing the caldera.The sides of a small volcanic horst in the center of the caldera display lava flows overlying a 2-m-thick halite bed, formed when sea water filled the caldera, creating an evaporite basin.
Siehe auch: Sentinel hub | Landsat 8 | NASA FIRMS
