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Feb 1, 2022 · The New Madrid Seismic Zone sees regular activity. ... notes if the three fault segments in the seismic zone rupture in a single event, it could result in a 7.7 magnitude earthquake. ...
- Charles Dunlap
- Local Government And Community Reporter
Jan 23, 2014 · During 1811–1812, the New Madrid Seismic Zone experienced a sequence of three large intraplate earthquakes and at least one comparably sized aftershock. There have been no earthquakes of similar magnitudes since then. Using a combination of historical data dating back to the original large events and an epidemic-type aftershock sequence model ...
- Morgan T. Page, Susan E. Hough
- 2014
Apr 9, 2019 · The paleoseismic trenching study at the Paw Paw site mentioned in the article, “Four major Holocene earthquakes on the Reelfoot fault recorded by sackungen in the New Madrid Seismic Zone” is ...
- Rachel Crowell
Recent data, however, are coming together to give new insight. Taken together, the new data suggest that the New Madrid seismic zone may be shutting down after the recent cluster of large earthquakes in the past 1000 years. If so, it will be a very long time until the large earthquakes of 1811-12 recur. This view comes from combining four key ...
Jul 25, 2019 · Seismicity map of the New Madrid area, central eastern United States, from 1974 to 2018 shown with yellow dots (CERI, 2018). The focal mechanisms of the 33 events used in this study are shown. The seismicity highlights four major faults: the Reelfoot fault (RF), the New Madrid North (NMN) fault, the Risco fault, and the Cottonwood Grove (CWG ...
- Henri Leclère, Éric Calais
- 2019
John P. Rafferty. New Madrid earthquakes of 1811–12 - Fault Lines, Seismic Activity, Intensity: Over the past 4,500 years, a number of major earthquakes of magnitude 7.0 to 8.0 occurred in the NMSZ. These events include clusters of large earthquakes that have been dated to 2350 bce, 900 ce, and 1450 ce. The region also experienced two large ...
The New Madrid Seismic Zone (NMSZ) is well known for producing some of the largest intra-cratonic earthquakes within the North American Plate. The common hypothesis for the geological structure within the NMSZ is that stress is released across three major faults: the Cottonwood Grove Fault, the New Madrid North Fault, and the Reelfoot Thrust Fault.
