A magnitude 4.7 earthquake struck nearly 490 kilometers beneath the South Pacific south of Fiji, offering scientists insights into subduction dynamics while remaining imperceptible at the surface due to its extreme depth within the diving Pacific Plate.
A magnitude 5.5 earthquake strikes Alaska’s remote Aleutian Islands as the largest event in a 14-quake swarm, occurring in the seismically volatile Rat Islands subduction zone capable of magnitude 8+ megathrust events.
A magnitude 5.2 earthquake struck 216 km beneath Tonga, just 24 km from the epicenter of a powerful M7.5 quake one week prior, highlighting ongoing seismic adjustments in the subduction zone.
A magnitude 7.6 earthquake struck 237km beneath Tonga, marking the region’s strongest quake in over 30 years. Its extreme depth prevented tsunami generation despite massive energy release.
A shallow magnitude 4.8 earthquake struck 131 km southwest of Samoa, near the site of the devastating 2009 M8.1 quake. GeoShake examines what this tremor reveals about the restless Tonga-Kermadec subduction zone.
A magnitude-4.9 earthquake struck at 66km depth off New Zealand’s North Island, offering a window into the Hikurangi subduction zone capable of generating much larger events.
A shallow M3.2 earthquake strikes Sındırgı, Turkey, as part of an intense swarm of 386 tremors in one week near the epicenter of destructive 2025 M6.0 and M6.1 quakes.
A rare deep-focus earthquake strikes 554 kilometers beneath Fiji, revealing the intense geological forces at work as the Pacific Plate subducts into Earth’s mantle near the site of the devastating 2018 M8.2 event.
A shallow magnitude 4.5 earthquake struck 113 km from Isangel, Vanuatu, just days after a M6.1 event, highlighting the ongoing seismic activity along the New Hebrides Trench subduction zone.
A M4.6 earthquake struck 15 km from the 1989 M7.1 epicenter near Tobelo, Indonesia, highlighting the Molucca Sea’s persistent potential for destructive seismic events.