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New information on the cascadea fault
New information on the cascadea fault







new information on the cascadea fault

The probability of the CSZ, the San Andreas and the San Jacinto rupturing together (especially to their full rupture lengths), followed by a volcanic eruption (or two), is highly unlikely.

new information on the cascadea fault

Get prepared for quake: Build your preparedness kit in 24 weeks 15 of this year, will follow a CSZ earthquake. There is no doubt that a major tsunami, much larger than the one that came to our shores on Dec. Further research has shown that roughly 20% of CSZ earthquakes have been followed by a Cascade Range volcanic eruption within a reasonably short time frame (days to months). New research by UC Davis and San Diego State finds that roughly 20% of San Andreas earthquakes have coincided with earthquakes on the San Jacinto Fault. Responders from outside the disaster area will take time to arrive - how much time will depend on the area of devastation.Ĭascadia megathrust earthquakes appear to have triggered San Andreas earthquakes roughly two-thirds of the time over the past 3,000 years. The Willamette Valley is expected to go as long as 50 days without natural gas, 100 days without electricity and a whopping 400 days without water/sewer. Roads and bridges will be heavily damaged. The next one will undoubtedly overwhelm local emergency responders. The precious few seconds’ warning that ShakeAlert can now bring will be all you get.įorty-six of these megathrust CSZ earthquakes have occurred over the past 10,000 years, averaging one every 223 years. They can’t be predicted, and there isn’t an earthquake season. They are some of the greatest ghost stories ever told -suddenly everywhere around us at once, unseen but for the destruction they cause. You can watch a volcano spewing and wildfires and storms approaching.Įarthquakes are different. You can see floodwaters rise and landslides and avalanches flow.

new information on the cascadea fault

You can see a tornado travel you can watch it shift direction. As a Community Emergency Response Team (CERT) member living in Salem, I’ve spent the past six years working to motivate community preparedness around this topic. 26 marked the 322nd anniversary of the last major Cascadia Subduction Zone (CSZ) earthquake. Oregon Department of Transportation's two-year, $18 million I-105 Bridge Preservation Project repaired, repaved and added seismic upgrades to the bridges and ramps between downtown Eugene and Delta Highway on I-105.









New information on the cascadea fault