U.S. Geological Survey seismic engineering data report, 1974-75 records; strong-motion earthquake accelerograms digitization and analysis

1979 ◽  
Author(s):  
A. Gerald Brady ◽  
Virgilio Perez
Keyword(s):  
Strong Motion ◽  
Geological Survey ◽  
Seismic Engineering ◽  
Engineering Data ◽  
Earthquake Accelerograms

U.S. Geological Survey National Strong-Motion Project strategic plan, 2017–22

2017 ◽  
Author(s):  
Brad T. Aagaard ◽  
Mehmet Celebi ◽  
Lind Gee ◽  
Robert Graves ◽  
Kishor Jaiswal ◽  
...  
Keyword(s):  
Strong Motion ◽  
Strategic Plan ◽  
Geological Survey

scholarly journals Computer processing of New Zealand strong-motion accelerograms

1983 ◽  
Vol 16 (3) ◽  
pp. 234-246
Author(s):  
S. B. Hodder
Keyword(s):  
New Zealand ◽  
Ground Motion ◽  
Strong Ground Motion ◽  
Processing System ◽  
Strong Motion ◽  
Computer Processing ◽  
Band Pass ◽  
New Processing ◽  
Earthquake Accelerograms ◽  
Strong Ground

Recently implemented modifications to the computer processing of earthquake accelerograms are described. The main extensions to the system include dynamic instrument correction, robust band-pass filtering and accurate integration, all implemented in the frequency domain. The processed records now provide accurate representations of strong ground motion within the frequency band from 0.25 Hz to 24.5 Hz: full accuracy is maintained in the computed velocity and displacement signals. The use of the new processing system is demonstrated using two previously recorded accelerograms.

Comparison of some widely-used strong-motion earthquake accelerometers

1971 ◽  
Vol 61 (2) ◽  
pp. 383-397 ◽  
Author(s):  
A. Eisenberg ◽  
T. V. McEvilly
Keyword(s):  
Strong Motion ◽  
Shaking Table ◽  
Response Characteristics ◽  
Expected Performance ◽  
Earthquake Accelerograms

abstract A series of shaking table and tilt tests were conducted with several commonly used strong-motion earthquake accelerographs. Table accelerations up to 0.5 g, both sine waves and recorded earthquake accelerograms, were used to evaluate response characteristics in the 1- to 50-Hz band under strong-motion conditions. All instruments performed within 10 per cent of manufacturers' specifications. No serious parasitic resonances were observed. Timing systems accuracies should be improved for intra-instrument detailed spectral comparisons. The general intuitive feel that mechanical, electronic and recording simplicity are a measure of expected performance for unattended instruments was reinforced by the tests.

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