Beach Balls Explained: Thrust Faults
/@AK Earthquake Here's part 2.
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Beach Balls Explained: Strike-Slip Faults
/@AKearthquake During coverage of the M7.9, you might have seen a cryptic, beach ball-looking symbol used as a way of showing that it was a strike-slip earthquake, unlikely to generate a major tsunami. Here's Helena Buurman's visual explainer. You might need to download and view on a desktop.