New Jersey’s recent earthquake indicated new seismic risks in the densely populated Northeast due to previously unknown faults. Credit: SciTechDaily.com A recent earthquake in New Jersey displayed unusual seismic activity and shaking patterns, impacting areas much farther than expected. Research indicates it happened on an unmapped fault, challenging existing models of earthquake risk in the region. On April 5th, 2024, a magnitude 4.8 earthquake struck northern New Jersey’s Tewksbury township, triggering widespread alarm. Although the region occasionally experiences small tremors, this was the largest since 1884, when an earthquake of approximately magnitude 5 struck under the seabed off Brooklyn. According...