Earthquakes

A magnitude 6.9 earthquake struck northern Japan today. No tsunami warning has been issued.

18. juni 2026 Rapportert av AI

A new study finds that tectonic stress along Southern California's San Andreas and San Jacinto faults has reached levels unseen in the past millennium. Researchers identified Cajon Pass as an earthquake gate that could allow a rupture to spread across both systems. The findings, based on a physics-based model, highlight conditions that historically preceded major multi-fault events.

A massive body of magma surged upward beneath São Jorge Island in Portugal's Azores archipelago in March 2022, triggering thousands of earthquakes before stalling underground. The event, detailed in a new study, represented a failed eruption that raised but ultimately eased fears of volcanic activity.

2. mai 2026 Rapportert av AI

A new study indicates that the Cascadia subduction zone and the northern San Andreas fault may trigger earthquakes in close succession, potentially amplifying disaster risks along the U.S. West Coast. Researchers identified evidence of such synchronization in ocean floor sediment cores spanning 3,100 years. This connection could affect cities from San Francisco to Vancouver simultaneously.