Historic and prehistoric earthquake-induced liquefaction in Newbury, Massachusetts

Journal Article · Sat Jun 01 00:00:00 EDT 1991 · Geology; (USA)

DOI:https://doi.org/10.1130/0091-7613(1991)019<0594:HAPEIL>2.3.CO;2· OSTI ID:5598340

Tuttle, M; Seeber, L ^[1]

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1. Columbia Univ., Palisades, NY (USA)

Sand dikes and sills in glaciomarine sediments record two liquefaction events in Newbury, Massachusetts, the meizoseismal area of the A.D. 1727, felt-area magnitude 5.0, earthquake. During the 1727 earthquake, Newbury experienced ground shaking on the order of modified Mercalli intensity 7 and underwent ground failure typical of liquefaction. According to accounts of the earthquake, ground cracks with separations of up to 0.6 m formed; sand and water vented through at least ten ground cracks; land was locally elevated; and firm ground was changed to quagmire. Crosscutting relations and radiocarbon dating of woody material associated with liquefaction features exposed by trenching indicate that at least two moderate to large earthquakes have occured in the Newbury area in the past 4 ka. The relatively unweathered, younger features are consistent in style and location with ground failure described for the 1727 earthquake. The more weathered, older features probably formed during a prehistoric earthquake. Glaciomarine and other deposits that may be prone to liquefaction are widely distributed in northeastern North America; they provide the opportunity to develop criteria for identifying paleoliquefaction events and to better determine earthquake hazard in the region.

• OSTI ID: 5598340
• Journal Information: Geology; (USA), Vol. 19:6; ISSN 0091-7613
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
EARTHQUAKES
GEOLOGIC HISTORY
MASSACHUSETTS
CARBON 14
EARTHQUAKE MAGNITUDE
GEOLOGY
GROUND MOTION
ISOTOPE DATING
LIQUEFACTION
MAPS
SAND
SEISMIC EFFECTS
SEISMICITY
SOILS
WOOD
AGE ESTIMATION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON ISOTOPES
DEVELOPED COUNTRIES
EVEN-EVEN NUCLEI
FEDERAL REGION I
ISOTOPES
LIGHT NUCLEI
MOTION
NORTH AMERICA
NUCLEI
RADIOISOTOPES
SEISMIC EVENTS
THERMOCHEMICAL PROCESSES
USA
YEARS LIVING RADIOISOTOPES
580000* - Geosciences