Accession Number:

AD0679866

Title:

SEISMIC SEICHES FROM THE MARCH 1964 ALASKA EARTHQUAKE,

Descriptive Note:

Corporate Author:

LAMONT GEOLOGICAL OBSERVATORY PALISADES NY

Personal Author(s):

• McGarr, Arthur
• Vorhis, Robert C.

Report Date:

1968-11-13

Pagination or Media Count:

71.0

Abstract:

Seismic seiches caused by the Alaska earthquake of March 27, 1964, were recorded at more than 850 surface-water gaging stations in North America and at 4 in Australia. The seiches were recorded on bodies of water having a wide range in depth, width, and rate of flow. In a region containing many bodies of water, seiche distribution is more dependent on geologic and seismic factors than on hydrodynamic ones. The concept that seiches are caused by the horizontal acceleration of water by seismic surface waves has been extended in this paper to show that the distribution of seiches is related to the amplitude distribution of short-period seismic surface waves. Author

Descriptors:

• *ALASKA
• *EARTHQUAKES
• VELOCITY
• THICKNESS
• WATER WAVES
• HYDROLOGY
• SEISMIC WAVES
• OSCILLATION
• TELEMETER SYSTEMS
• SEDIMENTATION
• GEOLOGICAL SURVEYS
• RECORDING SYSTEMS
• SURFACE PROPERTIES
• INTENSITY
• DISTRIBUTION
• ACCELERATION

Subject Categories:

• Hydrology, Limnology and Potamology
• Seismology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE