Ramapo fault history

ramapo fault history Figure 3 indicates that seismic slip on the Ramapo fault extends to a depth of about 10 km. Great Lakes Tectonic  15 Mar 2011 The 'New Madrid' fault line in the heart of the country is particularly The Ramapo Fault runs about 70 miles through New Jersey,  Earthquake Fault Lines in America - ABC News. At that time, the site was owned by the Ramapo Land Company and The Newark basin aquifer is bounded to the north and east by the Palisades sill and to the west by the Ramapo Fault. “The Ramapo Fault System In New York and Adjacent Northern New Jersey: A Case of Tectonic Heredity. In contrast, much of the seismic activity northwest of the Ramapo fault occurs at shallow depths (1 to 2 km) and seismic sources used are numbers 57, 61, 65, and 69. one had to do with whether the Ramapo Fault or any of its branches should be considered  Figure 1 shows the relationship of a fault plane to the origin point of the seismic waves (called the hypocenter or focus of the earth-. This fault system appears to have had a long tectonic history, perhaps extending from the Late Precambrian to the Recent (Rat-cliffe 1971). This fault may have been active since Precambrian time, with different directions of relative motion along the fault in different periods of its history, including our modern times since the glaciers have melted. Posted June 15, 2010 by Wayne J. three sites along the Ramapo fault decrease from 50° to 44° southeast and then to 34° at the Flemington – Furlong fault (FF in Fig. According to the NJGS, the Ramapo Fault was the only large fault near the Ramapo Fault, and the sediments there are gravelly, as would be expected where streams were bringing their sediment load down from highlands onto alluvial fans. More recently, in the 1970’s and early 1980’s, earthquake risk along the Ramapo Fault received attention because of The Ramapo Fault zone spans more than 185 miles (300 kilometers) in New York, New Jersey, and Pennsylvania. The Alleghanian Orogeny caused the rocks along the eastern margin of North America to compress westward like a collapsing telescope. The entire fault system, including splays and branches along strike at both ends of the main normal fault, expands 150 to 175 km. Since 1962 the Lamont seismograph network in southeastern New York and northern New Jersey has recorded four small earthquakes with epicenters along the Ramapo fault near the New York-New Jersey border. 1998 RF is Ramapo fault; ML is Martic line; CL is Cametons line; and flooding was unprecedented in the history of the quarry, the. More than 200 million years ago, the land between the Ramapo Fault, near Parsippany-Troy Hills, and another fault west of Paterson, began to drop, creating the Newark Basin, a valley that extends from the Hudson River southwest, almost to Gettysburg, PA. Ramsey (Bergen County) Ramsey Sayer House, Upper Saddle River. 2020 1970s, when the fault's proximity to the Indian Point nuclear plant in 2. 0 mi west of Mahwah, and 1. Armbruster, W. Andreas fault, New Madrid fault zone, Hayward Fault, Denali Fault system, Ramapo fault, Cascadia. There are earthquakes in New York and on Long Island. The History Of New York Earthquakes: Before The Si India a Threat  risk along the Ramapo Fault received attention because of and location of the Ramapo Fault. See: Upper Saddle River Historical Society. Musconetcong Thrust Fault. The Ramapo Fault goes though the western part of the township. The-complete history of the, proceeding, to the. This fault is the boundary between the western edge of the Newark Basin and the northern New Jersey Highlands (Figure 36). Other areas are the Ramapo fault in northern New Jersey and southern New York, the Wasatch fault in Utah, a hypothetical fault in central Nevada and a profile across the San Andreas fault in central California. Where are the biggest fault lines? What is the San Andreas Fault? This fault is one of the largest faults in the world, running more than 800 miles from the Salton Sea to Cape Mendocino. It is a hairline fracture, 50 miles long, compared to the San Andreas fault of California, which is 700 miles long. Posted June 15, 2010 by Wayne J. Multiple episodes of reactivation since then have left overprint- The 1903 flood, the greatest in the history of the Ramapo Valley, began with a soft rain on October 8th. Kim, and N. Previous studies have shown that the Ramapo View this answer. , N. 1 Jul 2020 Figure 4. Rancocas (Burlington County) Randolph Township (Morris County) Raritan (Somerset County) See also Ramapo College. Ramapo Fault. ,1990, Orientation, movement history, and cataclastic rocks of the Ramapo Fault based on core drilling and trenching along the western margin of the Newark Basin near Bernardsville, New Jersey: U. Created by the rapidly eroding sedimentary rocks among the region’s ancient metamorphic rocks, the fault line hidden under the Ramapo Mountains has not been active for an extensive period of time but poses a threat The attitude and movement history of these faults is particularly important because of the possible association of recent low-level seismicity in the New York-New Jersey area with the Ramapo-Flemington fault system (Aggarwal and Sykes, 1978). This fault system is one of the longest In New Jersey we have the Ramapo Fault Line (see map above) which runs into New York State but well north of New York City. Ramapo Fault Possible Threat to Indian Point Energy Center; a New Concern. Earlier this year, several small quakes were centered near the New Madrid fault in southeast Missouri,  21. This fault is perhaps the best known fault zone in the Mid-Atlantic region, and some small earthquakes have been known to occur in its Living on the Fault LineA major earthquake isn’t likely here, but if it comes, watch out. New Madrid Fault Line · 5. 2020 Ramapo Fault – Similar to Dobbs Ferry, this is also not within the Nevertheless, despite this uncertainty, history does indicate that  No, the Ramapo fault is a type of dip-slip fault, which has vertical motion rather than the horizontal motion of rocks moving past one another in a  27. Created by the rapidly eroding sedimentary rocks among the region’s ancient metamorphic rocks, the fault line hidden under the Ramapo Mountains has not been active for an extensive period of time but poses a threat Orientation, movement history, and cataclastic rocks of Ramapo fault based on core drilling and trenching along the western margin of the Newark basin near Bernardsville, New Jersey IMAP 1982 The Ramapo Fault System is shown as a red line. --Lat 41°05'53", long 74°09'46" referenced to North American Datum of 1983, Mahwah Township, Bergen County, NJ, Hydrologic Unit 02030103, on left bank 350 ft downstream from State Highway 17, 0. Barstow. ” Geol Soc America Bull Geological Society of America Bulletin 82. Covering a distance of over 185 miles, the Ramapo See full answer below. , 1996) into New York State. Cascadia Megathrust · 3. This fault is perhaps the best known fault zone in the Mid-Atlantic region, and some small earthquakes have been known to occur in its The Ramapo Fault is part of a system of faults that runs from southeastern New York to eastern Pennsylvania. 5 This fault line starts in Pennsylvania and crosses New Jersey through Hunterdon, Somerset, Morris, Passaic and Bergen counties. The northeast trending fault separates the Triassic basin to the southeast from the Precambrian highland to the northwest. The Ramapo Fault is a fracture of the Earth's crust that is located in the eastern United States. Much of New Jersey's seismic activity during recent decades has been concentrated near the Ramapo fault system, which extends diagonally from southern New York state down through northern New Fault Line areas in Pennsylvania. Both faults are interpreted to be Laramide on the basis of their basement-involved, contractional nature and brittle deformation. one had to do with whether the Ramapo Fault or any of its branches should be considered  The rift valley of the Ramapo Fault transected the borough, separating the jersey Highlands and the gorge of the North Branch. 2015 The last large quake on the Ramapo fault line was in 1884 and it rocked This entry was posted in Hudson Valley History, Insurance,  ORIGIN OF EARTHQUAKES Although most earthquakes are associated with movement along faults, they can also be triggered by volcanic activity,  There's no safe place. Two well-known hypotheses to explain earthquakes in the Northeast were the supposed existence of a "Boston-Ottawa seismic zone" and the presumed activity of the Ramapo fault (an ancient geological fault in northern New Jersey and southeastern New York State). The last time the VSZ caused so much chaos was in 1867 when it released an earthquake of 5. We would define the last (most-obvious) motion sense on the Ramapo fault as being oblique  08. The Wisconsin Glacier came into the area around 21,000 BC and left around 13,000 BC due to a warming in climate. Previous studies have shown that the Ramapo the Ramapo fault, and to establish its relationship to possible subsidiary splays of the border fault thought to extend northwest-ward from Ladentown, northward into the Hudson Highlands and northeast-ward History of Contamination Prior to landfill operations in the 1950s and 1960s, portions of the site were excavated as a source of gravel. 6 mi downstream from Mahwah River, 1. 1) forms the southeastern boundary of the Hudson Highlands. Ramapo fault on the east side of the Hudson River, seismic activity is nearly continuous along the entire zone A-A'. Ramapo Mountain People. 10 Jul 2019 The study concluded that a magnitude 6 or 7 earthquake along the Ramapo Fault could cause billions of dollars in damage. The Ramapo Fault zone spans more than 185 miles (300 kilometers) in New York, The biggest Tsunamis in modern history. I don’t think there’s any danger, based on any known past earthquakes, to the power plant itself, but I think the larger problem is that this facility is close to massive population Andreas fault, New Madrid fault zone, Hayward Fault, Denali Fault system, Ramapo fault, Cascadia. 2018 happen along these zones of weakness. 09. Yet, the Insurance Information Institute estimates just a quarter of all homeowners in earthquake-prone areas have The quake occurred along the 187-mile-long Ramapo Fault, which stretches from Pennsylvania and New Jersey to Westchester County, where it runs beneath the Indian Point nuclear power plant in Buchanan. . This fault is the boundary between the western edge of the Newark Basin and the northern New Jersey Highland… faults and bedrock structures in the Highlands region have exceedingly complex histories that are challenging to discern. How dangerous is the Ramapo fault line? A magnitude 5. Static fault strikes northeast  History of Earthquakes in New Jersey. In fact, the largest earthquake in recent history to rattle the New  We also looked at the San Jacinto Fault and the Imperial Fault. History of Contamination Prior to landfill operations in the 1950s and 1960s, portions of the site were excavated as a source of gravel. 04. The Ramapo fault runs from Westchester County to the Hudson River at Stony Point. 6-magnitude — the strongest in Virginia’s history. Note how the earthquakes tend to be associated with the Ramapo Fault System. See: Jackson Whites. The ancient Ramapo Fault runs near New York City. (A fun note: the Indian Point nuclear power plant along the Hudson sits nearly on top of this ancient fault. Ramapo Mountains. Possible uplift of the Highlands region along the Ramapo Fault system. H am burg F ault. A 2008 study by Lamont-Doherty argued that a magnitude 6 or 7 earthquake was destined to originate from the Ramapo Fault Zone. 3. The proximity of these events to the fault and the previous earthquake history of the area suggest that much of the seismic activity of the area is associated  The western side of the NBSZ is marked by the Ramapo fault system, which strikes to the northeast, dips to the southeast, and extends from southeastern New  09. The Ramapo Fault sits on the North American Plate, which extends past the East Coast to the middle of the Atlantic, where it meets the Mid-Atlantic Ridge, an  Pequest Allamuchy Fault. Spanning more than 185 miles (298 km) in New York, New Jersey, and Pennsylvania, it is perhaps the best known fault zone in the Mid-Atlantic region, and some small earthquakes have been known to occur in its vicinity. The Ramapo Fault is a dominant structural feature in the region, extending northeast from the Peapack-Gladstone area (Drake et al. S. 3. It continued for thirty hours. Tragedies such as the bombing of Hiroshima and the disaster at Chernobyl remain painful Much of New Jersey's seismic activity during recent decades has been concentrated near the Ramapo fault system, which extends diagonally from southern New York state down through northern New Although there are multiple faults in Northeast, the Ramapo Fault is the best known separating the Piedmont and Highlands Physiographic Provinces. ramapo fault history


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