Earthquakes

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.

April 30, 2026 An Ruwaito ta hanyar AI

Scientists have captured the first clear images of a subduction zone breaking apart beneath the Pacific Northwest. The Juan de Fuca plate is splitting into fragments as it sinks under the North American plate. The findings, from a 2021 seismic experiment, reveal a gradual tearing process.

A joint Chinese-Chilean expedition will plumb the uncharted depths of the Atacama Trench in the Pacific Ocean. Setting off from Valparaiso aboard the Chinese research vessel Tan Suo Yi Hao, the three-month mission seeks new life forms and insights into earthquakes and tsunamis. The collaboration provides Chilean scientists with tools no other country possesses.

January 17, 2026 An Ruwaito ta hanyar AI

Scientists have used swarms of minuscule earthquakes to map a hidden and intricate tectonic structure beneath northern California. This region, at the intersection of the San Andreas fault and the Cascadia subduction zone, involves five moving pieces rather than the expected three. The findings help explain past seismic events and improve hazard predictions.