Isla Tortuga volcano
Baja California, Mexico, 27.43°N / -111.88°W
Current status: normal or dormant (1 out of 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.
Isla Tortuga volcano eruptions: unknown, less than 10,000 years ago
Latest nearby earthquakes
|Time||Mag. / Depth||Distance/Location|
|Sunday, November 19, 2023 GMT (1 quake)|
|Nov 19, 12:45 am (GMT -7)|
(Nov 19, 07:45 GMT)
|32 km (20 mi)|
84 km west of Guaymas, Sonora, Mexico
BackgroundThe 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.
See also: Sentinel hub | Landsat 8 | NASA FIRMS