Ramapo Fault
E595680
The Ramapo Fault is a major geological fault system in the northeastern United States that marks the boundary between the Appalachian Mountains and the Piedmont region and has been associated with regional seismic activity.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fault system
ⓘ
geological fault ⓘ normal fault ⓘ strike-slip fault ⓘ |
| age | primarily Paleozoic with later reactivation ⓘ |
| associatedWith |
intraplate earthquakes
ⓘ
regional seismic activity ⓘ |
| category |
Geology of New Jersey
ⓘ
Geology of New York (state) NERFINISHED ⓘ Geology of Pennsylvania ⓘ Seismic faults of the United States ⓘ |
| considered | potential source of moderate earthquakes ⓘ |
| crosses |
Hudson River Valley region
NERFINISHED
ⓘ
New Jersey Highlands NERFINISHED ⓘ eastern Pennsylvania NERFINISHED ⓘ southeastern New York State ⓘ |
| formedDuring |
Mesozoic era
NERFINISHED
ⓘ
breakup of supercontinent Pangaea ⓘ |
| geologicProvinceBoundary |
Appalachian Highlands
NERFINISHED
ⓘ
Piedmont Plateau NERFINISHED ⓘ |
| hazardRelevance | critical for infrastructure planning in northern New Jersey and lower Hudson Valley ⓘ |
| length |
over 115 miles
ⓘ
over 185 kilometers ⓘ |
| locatedIn |
New Jersey, United States
ⓘ
surface form:
New Jersey
New York NERFINISHED ⓘ Pennsylvania ⓘ northeastern United States NERFINISHED ⓘ |
| marksBoundaryBetween |
Appalachian Mountains
NERFINISHED
ⓘ
Piedmont physiographic province NERFINISHED ⓘ |
| maximumEstimatedMagnitude | approximately 6 to 7 moment magnitude ⓘ |
| monitoredBy | regional seismic networks in the northeastern United States ⓘ |
| movementType | combination of strike-slip and normal motion ⓘ |
| namedAfter | Ramapo River NERFINISHED ⓘ |
| near | New York City metropolitan area NERFINISHED ⓘ |
| orientation | northeast-southwest trend ⓘ |
| partOf | Appalachian Mountains ⓘ |
| rockUnitsJuxtaposed |
Paleozoic sedimentary rocks
ⓘ
Precambrian crystalline rocks ⓘ |
| runsNear |
Ramapo Mountains
NERFINISHED
ⓘ
Ramapo River NERFINISHED ⓘ |
| seismicityCharacter | infrequent but possible damaging earthquakes ⓘ |
| studiedBy | United States Geological Survey NERFINISHED ⓘ |
| studiedFor | seismic hazard assessment ⓘ |
| tectonicSetting | passive continental margin of eastern North America ⓘ |
| underlies |
parts of Orange County, New York
ⓘ
parts of Rockland County, New York ⓘ parts of northern New Jersey ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.