Jackson Segment
Fissure vent(s) · -3,100m · United States
About Jackson Segment
Jackson Segment is a fissure vent(s) rising to -3,100 meters (-10,171 feet) in United States's Eastern Pacific Volcanic Regions. No historical eruptions have been recorded, though the volcano is classified based on geological evidence of past activity.
Geography & Climate
Jackson Segment is located in United States, within the Northeast Pacific Rifts Volcanic Province of the broader Eastern Pacific Volcanic Regions. Situated at 42.15° N, 127.05° W in the Northern Hemisphere, the volcano lies within a temperate climate zone. With an elevation of -3,100 meters — below sea level — Jackson Segment is a submarine or submerged volcanic feature. Submarine volcanoes make up the majority of Earth's volcanic activity, though most eruptions go unobserved beneath the ocean surface. The volcanic landform is characterized as a cluster, which describes the physical shape and structure of the volcanic edifice as observed from the surface.
Geological Context
Jackson Segment is situated along a rift zone, where tectonic plates are pulling apart. As the crust thins and fractures, magma rises to fill the gap, creating volcanic activity. Rift volcanism typically produces more fluid lava flows rather than explosive blasts, which means communities near Jackson Segment in United States generally face slower-moving hazards like lava flows and ground fissures rather than sudden pyroclastic events. However, rift volcanoes can still generate significant ash emissions and gas releases that affect local air quality.
GVP Reference Summary
The Jackson Segment of the Gorda Ridge more than 200 km off the coast of Oregon lies immediately SSW of the North Gorda Ridge, the northermost of five segments forming the Gorda Ridge spreading center. The first recorded activity took place in April 2001, when volcanic seismicity was detected by hydroacoustic monitoring. The seismicity indicated possible dike propagation to the south and was similar to that which was documented at the time of the eruption of a submarine lava flow from the adjacent North Gorda Ridge segment in 1996. The 2001 activity originated from the central axial valley of the Jackson Segment, near the "narrowgate" on the southern part of the segment. Later surveys, however, revealed no evidence for submarine eruptive activity in April 2001.
— Smithsonian Institution, Global Volcanism Program
0 Recorded Eruptions
No eruption records available for Jackson Segment.
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Jackson Segment
Is Jackson Segment an active volcano?+
Jackson Segment is not currently classified as active. Its activity evidence is listed as "Unrest / Holocene." No recorded eruptions have been documented. However, no volcano is ever considered permanently extinct.
How high is Jackson Segment?+
Jackson Segment has a summit elevation of -3,100 meters (-10,171 feet) above sea level. With an elevation of -3,100 meters (below sea level), this is a submarine or submerged volcanic feature.
What type of volcano is Jackson Segment?+
Jackson Segment is classified as a Fissure vent(s). Fissure vent(s) volcanoes have distinct geological characteristics that set them apart from other volcanic types.
Where is Jackson Segment located?+
Jackson Segment is located in United States, in the Eastern Pacific Volcanic Regions. More specifically, it lies within the Northeast Pacific Rifts Volcanic Province. Its exact coordinates are 42.150° latitude, -127.050° longitude.
Is it safe to visit Jackson Segment?+
Jackson Segment can generally be visited, but as with any volcano, visitors should check local conditions and any advisory notices before traveling. United States may have specific regulations for accessing volcanic areas. Guided tours are often the safest and most informative way to experience a volcano.