Shallow M5.9 Earthquake Strikes Tonga: Ninth Tremor in Week-Long Swarm Near 2009 Disaster Zone
A shallow magnitude 5.9 earthquake struck off Tonga’s northern islands at just 10 km depth, marking the ninth tremor in a week-long swarm along the volatile Tonga-Kermadec subduction zone near the site of the deadly 2009 M8.1 Samoa earthquake.