A surprisingly busy 24 hours of seismic activity saw a M 5.7–5.8 quake off the Dominican Republic that rattled Puerto Rico, a M 6.3–6.5 event east of the Philippine archipelago that was felt as far as Thailand and Myanmar, and a widely‑felt but harmless M 2.7 jolt under Los Angeles. Dozens of smaller shocks—most notably in Chile, Papua New Guinea and Nevada—rounded…
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