LONG-RANGE SEISMIC MEASUREMENTS PROGRAM.
Abstract
The progress of the Long-Range Seismic Measurements Program (LRSM) during the period 1 April 1966 through 31 March 1968 is described. The organizational structure of LRSM has undergone only minor changes and sustains the flexibility and operating efficiency required for a field-oriented program. The most notable change in the program has been the increased use of the portable seismograph system in the collection of data for special studies. Sixteen mobile observatories and six portable systems were in operation during most of this report period. The use of the five additional portable systems manufactured and assembled during this report period will greatly increase the recording capabilities of future field assignments. The equipment and seismogram evaluation programs continue to advance new and improved methods to ensure high quality data. The resulting data are being used for advanced methods of data processing. A review of the studies and evaluations made is included in this report. Studies have been undertaken and completed by the Special Projects group and include surveys of seismological bulletin data, effects of site geology and source medium on signal and noise properties, and characteristics and methods of processing long-period seismic data. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1968
- Accession Number
- AD0834696
Entities
People
- Raymond G. Reakes
Organizations
- Geotech Instruments (United States)