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Las Navajas volcano

Shield 1680 m / 5512 ft
Mexico, 21.53°N / -104.73°W
Current status: (probably) extinct (0 out of 5) | Reports
Las Navajas volcano books
Typical eruption style: unspecified
Las Navajas volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene) No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

Volcán Las Navajas is a low-profile shield volcano located immediately north of the more prominent Sangangüey volcano. Las Navajas is truncated by a 4-km-wide circular caldera, associated with eruption of the Las Cuevas ash. The caldera is filled by pantelleritic lava flows that overtopped the caldera rim on the north, east, and SW sides. A major plinian eruption about 200,000 years ago produced widespread airfall pumice and welded pyroclastic flows (collectively known as the La Moderna ash) that first formed a 1-km-wide central crater at the summit of a stratovolcano constructed in the center of Las Navajas caldera and then formed an elliptical caldera 2.5 x 4 km in size on the southern side of the volcano. Two cinder cones and an associated lava flow were subsequently erupted on the northern flank of Las Navajas, and Sangangüey volcano was constructed on the southern flank, largely burying the southern rim and floor of the second caldera.
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Source: Smithsonian / GVP volcano information


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