• Earthquake simulations reveal hidden flood risks along Pacific Northwest coast

    ByHarsh Vardhan

    A major earthquake along the Cascadia subduction zone would cause sudden coastal land subsidence, allowing seawater to penetrate farther inland. When combined with projected sea-level rise, this would substantially increase flood exposure in currently unaffected communities across northern California, Oregon, and Washington. Similar risks are present in other coastal regions located near active subduction zones worldwide.

  • Series of strong earthquakes hit off the coast of Oregon, U.S.

    ByTeo Blašković

    A series of earthquakes hit off the coast of Oregon, U.S. on December 7 and 8, 2021. The quakes are taking place at a shallow depth of about 10 km (6.2 miles), some 500 km (320 miles) W of Salem, Oregon. The swarm, located about 360 km (200 miles) west of the…

  • Very shallow M6.3 earthquake hits off the coast of Oregon, U.S.

    ByTeo Blašković

    A strong and shallow earthquake registered by the USGS as M6.3 hit off the coast of Oregon, U.S. at 15:07 UTC on August 29, 2019. The agency is reporting a depth of 5.4 km (3.3 miles). EMSC is reporting M6.3 at a depth of 2 km (1.2 miles). The epicenter was located…

  • Evidence of large ancient earthquakes of the Cascadia fault

    BySeneca

    The coastal salt marshes of the Cascadia subduction zone (CSZ) preserve evidence from several large earthquakes, between 8 and 9 in magnitude, according to paleoseismologists. So far, the scientists have been using only the stratigraphic data records to gain insight…

  • New cross-section reveals what’s beneath North America

    ByChillymanjaro

    To see the big picture of North America, look no further than a new detailed cross-section of the continent that ventures down to its deepest roots and has uncovered a mystery at its very foundation.Scientists constructed the cut-away map, which is curved just as