Brown Bear Seamount
Encyclopedia
Brown Bear Seamount is a seamount
(underwater volcano) approximately 300 mi (483 km) west of the coast of Oregon
. It is connected to the larger Axial Seamount
by a small ridge. Brown Bear Seamount was created by the Cobb hotspot
, and is located on the near west of the Juan de Fuca Ridge
. It has not been affected by ocean spreading as much as its neighbor, and is therefore not quite as geologically complex. Brown is the second youngest volcano in the chain, after Axial. No eruptions are known.
Seamount
A seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface , and thus is not an island. These are typically formed from extinct volcanoes, that rise abruptly and are usually found rising from a seafloor of depth. They are defined by oceanographers as...
(underwater volcano) approximately 300 mi (483 km) west of the coast of Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...
. It is connected to the larger Axial Seamount
Axial Seamount
Axial Seamount is a seamount and submarine volcano located on the Juan de Fuca Ridge approximately west of Cannon Beach, Oregon. The seamount, high, stands above the average height of the Juan de Fuca Ridge...
by a small ridge. Brown Bear Seamount was created by the Cobb hotspot
Cobb hotspot
The Cobb hotspot is a volcanic hotspot located off the Oregon/Washington coast of the United States. The hotspot is at the Juan de Fuca Ridge, and has made the Cobb-Eickelberg Seamount chain...
, and is located on the near west of the Juan de Fuca Ridge
Juan de Fuca Ridge
The Juan de Fuca Ridge is a tectonic spreading center located off the coasts of the state of Washington in the United States and the province of British Columbia in Canada. It runs northward from a transform boundary, the Blanco Fracture Zone, to a triple junction with the Nootka Fault and the...
. It has not been affected by ocean spreading as much as its neighbor, and is therefore not quite as geologically complex. Brown is the second youngest volcano in the chain, after Axial. No eruptions are known.