Potential Energy = pressure x volume = 32 k-Joules at 450 ft
Energy release estimated from spectrum: 630 Joules
Efficiency of 2% Other glass sphere tests indicate...
- Orr and Schoenberg (1976) - 18% with thick-walled sphere
- Gorham et al (1992) - 45%
Why so low?
- Only 1 recording at 1 azimuth
- Imploder may have produced anisotropic source
- Complex failure?