What's most striking about this event isn't the 4.5 magnitude itself, but the cascading pattern: over 150 tremors where the initial ones were only recognized as foreshocks *after* the main quake hit. That neatly captures one of seismology's most honest limitations — we still can't distinguish a foreshock from a main earthquake in real time. Dr. Lucy Jones has long noted that the Salton Sea region is structurally prone to this kind of swarm, and the 2016 record showed that events like this may or may not escalate into something larger. No damage reported so far — but the account of the resident who felt the ground shaking *while speaking live on air* says more about what a seismic swarm actually feels like than any USGS dataset ever could.
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