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Random pictures

Rota volcano

stratovolcano 832 m / 2,730 ft
Nicaragua, 12.55°N / -86.75°W
Current status: dormant (1 out of 5) | Reports
Rota volcano books
Typical eruption style: explosive
Rota volcano eruptions: less than 10,000 years ago
TimeMag. / DepthDistanceLocation
Wed, 12 Sep
Wed, 12 Sep 06:29 UTCM 5.4 / 106 km24 km Nicaragua
Rota (also known as Orota) volcano in Nicaragua is located between the more active Cerro Negro and Telica volcanoes in the central Marrabios Range. It is a symmetrical stratovolcano truncated by a 1 km wide circular crater.
There are no recent eruptions from Rota, and the cone is vegetated, but the volcano is still active.
Seismic swarms occurred at Rota volcano in 1986, 1989, and 1992.

Background:

The youngest (but pre-historic) eruption from Rota produced thick andesitic lava flows from a NE-trending fissure NW of the summit. 2 small lava domes, El Bosque (also known as Lomas San Ignacio del Bosque or Cerro Ojochal) are located on the plain 2 km north of the flank of Rota, and are aligned NNW-SSE on the same direction as many other eruptive fissures, which are transverse to the Marrabios Range volcanoes. Near Rota volcano is a large field of lava flows erupted from numerous small cones and maars.
(Source: GVP)

Rota Photos:

The smooth crust of the lake is broken into plates, which are moving against or away from each other, simulating plate tectonics. Above, a miniature mid-ocean spreading zone can be seen where two larger pieces of crust are moving away from each other. Even miniature transform faults and sheer zones due to differential and rotational movements can be seen. (Photo: Tom Pfeiffer)
The smooth crust of the lake is broken into plates, which are moving against or away from each other, simulating plate tectonics. Above, a miniature mid-ocean spreading z...
Zoom onto the rotating steam ring. (Photo: Tom Pfeiffer)
Zoom onto the rotating steam ring. (Photo: Tom Pfeiffer)
 Ijen-Two miners on a rotating share/basis are always on duty tending the fires (Photo: jorge)
Ijen-Two miners on a rotating share/basis are always on duty tending the fires (Photo: jorge)
Wide angle long exposure with Polaris rotation center in the left and Colima with the glowing dome to the right. (Photo: Tom Pfeiffer)
Wide angle long exposure with Polaris rotation center in the left and Colima with the glowing dome to the right. (Photo: Tom Pfeiffer)
Lava flowing downhil from multiple outbreak points results into its quickly cooled crust rotating into this beautiful rosette like texture (Photo: Ingrid Smet)
Lava flowing downhil from multiple outbreak points results into its quickly cooled crust rotating into this beautiful rosette like texture (Photo: Ingrid Smet)
The westernmost (left) vent (S1) has produced an ash-rich eruption; glowing spatter still lies around this vent, which today was not often active (but becomes protagonist a few days later). Seconds later, a dry strombolian eruption occurred from the NE vent (right). (Photo: Tom Pfeiffer)
The westernmost (left) vent (S1) has produced an ash-rich eruption; glowing spatter still lies around this vent, which today was not often active (but becomes protagonist...



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