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…
A strong and shallow earthquake registered by the USGS as M6.0 hit off the coast of Vancouver Island, B.C., Canada at 19:49 UTC on December 23, 2019. The agency is reporting a depth of 10 km (6.2 miles). Earthquakes Canada is reporting M5.8 at a depth of 5 km (3.1…
Controversial research argues that quakes made a one-two punch off the United States' west coast at least eight times in the past 3 000 years. For instance, the quake that hit Cascadia fault off the northern California coast triggered a second tremor on the San…
Researchers were able to get a better idea of what kind of megathrust seismic activity was behind the 1700 Cascadia earthquake by combining models of Magnitude 9 to 9.2 earthquakes on the Cascadia Subduction Zone with geological evidence of past coastal changes….
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…
One of the worst nightmares for many Pacific Northwest residents is a huge earthquake along the offshore Cascadia Subduction Zone, which would unleash damaging and likely deadly shaking in coastal Washington, Oregon, British Columbia and northern California. The…
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…
America's Pacific Northwest has a 37% chance of being hit by a magnitude 8 or larger earthquake in the next 50 years, a new study shows.
That's more than double previous estimates of a 10-15% risk. Great Subduction Zone earthquakes are the largest
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
