4 ms·
Every time I feel an earthquake in LA, my first question is, “was that a small one near me or a big one far away?”
by ryantgtg 5y ago
Every time I feel an earthquake in LA, my first question is, “was that a small one near me or a big one far away?”
- antod 5y agoYou get a feel for that with the shaking frequency and/or gap between different sets of waves (P & S waves). No discernable gap and higher jerkier frequency usually means closer, a longer rolling feeling with separated phases that might last longer usually means further away. Just like sound or ocean waves the higher frequencies attenuate out quicker over distance.