APPLICATION OF LARGE APERTURE ARRAY TECHNIQUES TO TSUNAMI WARNING
Abstract
A brief examination is made of the potentialities of a single large array like the Montana LASA in providing rapid tsunami warning information from earthquakes at teleseismic distances from the array. It appears that speed and location accuracy of such a station are adequate. Depth determination from depth phase observation is somewhat enhanced compared to that available from a small station, but the reliability of depth determination by the combined use of depth phases, body-surface magnitude differences, and surface wave dominant period is still not as reliable as required. The empirically observed limit on tsunami magnitude imposed by water depth is explained.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 29, 1967
- Accession Number
- AD0828319
Entities
People
- Paul E. Green
- Roy J. Greenfield
Organizations
- Massachusetts Institute of Technology