3 ms·
I am curious about 2 and 3. Since sounds is also just a pressure wave, those two should have been the same speed as well. I guess the sounds must have travelled
by brummm 6y ago
I am curious about 2 and 3. Since sounds is also just a pressure wave, those two should have been the same speed as well. I guess the sounds must have travelled through the ground as well.
- anthony_r 6y agoThe speed of sound in pretty much any solid (or liquid) body is much faster than in the air. That's why the earthquake came first, and it was probably the earthquake that caused the 2. noises.
- spuz 6y agoThis is explained in the article. It describes the pressure wave as moving slower than the speed of sound. It was not a shockwave which would be generated by high-explosives which would travel at the speed of sound and be much more deadly.