Long Point–Eureka Heights fault system
The Long Point–Eureka Heights fault system is a system of geologic faults in Houston, Texas. It runs beneath the metropolitan area from the southwest to the northeast. The various faults are characterized as normal faults, meaning that the downthrown side is in the direction of the dip of the fault plane. This fault system as well as others located in nearby parts of Texas are believed to have formed millions of years ago during the formation of the Gulf of Mexico. No significant earthquakes have occurred on these faults in historic times, but slow movement has been observed.
Gallery
- View is SW at Long Point Road and Lynnview. Upthrown side of the Long Point Fault is to the right. Fault passes to the left of the kiosk.
- View is NW at Long Point Road and Lynnview. Long Point Fault passes left-right across the photo center.
- View is east on Memorial Drive at W. Forest. Approaching cars are on the downthrown side of the Long Point Fault.
References
- Houston: On Shaky Ground
- University of Houston fault map
- Fault Map (Google)
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Major seismically active faults of North America
(crosses national borders)
- Aleutian Trench (US–RU)
- Basin and Range Province (US–MX)
- Canadian Arctic Rift System (CA–GL)
- Cascadia subduction zone (US–CA)
- Clarendon-Linden fault system (US–CA)
- Denali Fault (US–CA)
- Northern Cordilleran Volcanic Province (CA–US)
- Puget Sound faults (US–CA)
- Rio Grande rift (US–MX)
- San Andreas Fault (US–MX)
- Southern Great Lakes Seismic Zone (US–CA)
- Tintina Fault (US–CA)
- Charlevoix Seismic Zone
- Laurentian Slope Seismic Zone
- Leech River Fault
- Queen Charlotte Fault
- Saguenay Graben
- Saint Lawrence rift system
- Timiskaming Graben
- Western Quebec Seismic Zone
Washington and Oregon | |
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California | |
Great Basin | |
Great Plains |
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Midwest | |
Appalachian Mountains and Atlantic Coast |
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- Cayman Trough
- Chixoy-Polochic Fault
- Enriquillo–Plantain Garden fault zone (Cuba)
- Gulf of California Rift Zone
- Lesser Antilles subduction zone
- Middle America Trench (Central America)
- Motagua Fault (Central America)
- Pedro Miguel Fault
- Puerto Rico Trench
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