IMAGE - 3,288 m (10,786 ft) Mt. Baker Stratovolcano (Kulshan), 108 km east of Vancouver, Canada, 18 km south of the Canada / United States border. The United States Geological Service ranks it a VERY HIGH RISK...SMALL earthquake - 2015 Report Natural Resources Canada & District North Vancouver ~ a 30% chance of a M7.3 in Salish Sea bringing down 839 buildings...BIG earthquake - a M8.8 – M9.2 ~ repeatedly 41 times in the past 10,000 years.
February 27, 2014 - Deep Time, Global Change and YOU lecture series: Magnitude 9 - How We Learned that the Largest Earthquakes on Earth Happen in BC
Presented by John Clague, Earth Science, Simon Fraser University
Evidence discovered by Canadian and U.S. scientists over the past 30 years has shown that the largest earthquakes on Earth occur at our doorstep, off the BC coast.
In this presentation, Dr. Clague describes how scientists found and interpreted the geological and biological evidence of these earthquakes. He also reviews the likely effects and impact of the next "Big One" on Vancouver, Victoria, and cities in the U.S. Pacific Northwest.
www.sfu.ca/cstudies/science
Published on Oct 9, 2016 The 1,130 km stretch of coastline from Vancouver, Canada to Mendocino, California, harbours an underwater threat just over 110km offshore - the seismic fault, Cascadia. Places like Japan, Chile and North America's Pacific Northwest all fall in what's known as subduction zones - ie, where one tectonic plate dives under another. The potential seismic activity from one of these plates 'popping' from on top of the other equates to an entire region affected by earthquake symptoms. The Cascadia Initiative (CI) is a years-long project that has been developed to study the effects of the fault and the two plates responsible for the action: Juan de Fuca and Gorda. From the data collected, it is confirmed that the Cascadia will only cause large magnitude earthquakes, ranging between every 300 to 500 years. The last noted eruption of the Cascadia was in the 1700s, making Western Canada and the US Pacific Northwest overdue for the next quake. But alongside the shaking, the movement of the sea floor is also set to generate a tsunami wave that will reach Northwestern shores within minutes of the explosion. Impact studies are under way at Oregon State University, where civil engineer Daniel Cox utilises a wave laboratory to gauge the effect of different sized tsunamis. Replicas of towns based on actual layouts of coastal cities that could be affected by a Cascadia-triggered tsunami are used to collect data that is then input into a computer, simulating potential situations and scanning for the worst areas of damage. The results, even on a small scale, are terrifying, and the fear doesn't lie only in the force of the tsunami waves, but also in the projectiles that get swept up in it, including vehicles or temporary buildings that could crash and, ultimately, obliterate permanent structures. With knowledge of the mass panic caused during evacuation due to natural disasters, even this facet of the event has been mapped out by experts at Oregon State. Combining elements of how the water moves onto land and factoring in human behaviour leads to the conclusion that most people are still unaware of how to react should an event of this large scale arise. How likely is it that there will be a 9.0 magnitude earthquake on the Pacific Northwest within the next 50 years? "Somewhere within one in seven chance within the next 50 years," says Daniel Cox. "These odds are way too high for us to accept. There's too many lives at risk. We have to come up with some better ideas." - Subscribe to our channel: http://aje.io/AJSubscribe
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TEDxmTalks Published on Jul 5, 2016 Originally hailing from Palo Alto, Chris married a Salem girl and is currently
Professor of Marine Geology at Oregon State University. His dad worked for NASA; so growing up in a house filled with stuff from the early probes like Voyager, Ranger, Surveyor, etc. made interest in earth sciences a natural progression. He is also into windsurfing, ocean sailing, and aerobatic flying. Dr. Chris Goldfinger is a marine geologist and geophysicist whose focus is on great earthquakes and the structure of subduction zones around the world. He is experienced using deep submersibles, multi-beam and side scan sonar, seismic reflection, and other marine geophysical tools all over the world. Recently, Chris was in the national spotlight after being featured in Kathryn Schulz’s article in The New Yorker, “The Really Big One.” His extensive research on the Cascadia subduction zone yielded an earthquake record extending through the Holocene epoch helping to develop a model of segmentation and earthquake recurrence.
Conclusion: our area is overdue for a major earthquake. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx
SUMMARY: If you want to survive, recognize that at first you will be all alone and uninsured. We will need to take care of the after-effects of all of this ourselves. STILL IT GETS PUSHED TO THE END OF A VERY BUSY AGENDA. This requires that we expect more from our leadership and that we elect serious, sober and somber people into office; NOT bratty, cute, entitled STUPID children. One member of this committee WALKED OUT, even before this presentation had been concluded. Washington State Senate Ways & Means Cascadia Subduction Zone Presentation Work Session, Feb 12 2017
CNN The Cascadia subduction zone is a convergent plate boundary that stretches from British Columbia to California. Experts say a shift in the plates will cause a major natural disaster for pLinks eople living along the west coast.
This is a video of Dr. Chris Goldfinger, PhD speaking about "The Coming Great Cascadia Earthquake: how did it come to this?" at the 2017 CREST - Jane Goodall Science Symposium. Location: Wilsonville High School CREDITS:
Dr. Chris Goldfinger, PhD Oregon State University
Producer and Editor Cinematic Immunity Treyton J. Hagen
Sound Stormy Hill Sound Daniel T. Cowdin
Dr.Kathy Ludwig West Linn - Wilsonville School District Superintendent
Amy Schauer CREST Program Coordinator, ISEF-Affiliated Fair Director
Problem is, they've got the engineering, mathematics, and physics wrong; albeit it certainly is more than >3 [three] metres (10 feet). WAY MORE. And this has happened repeatedly; 40+ times in the past 10,000 years.
Japanese records state that the Orphan Tsunami of 1700 AD was four stories, over 12 metres (40 feet) high; when we calculate the 8,000 kilometre distance between Cascadia's Fault and the shores of the Huu-ay-aht – Ancient Spirit, Modern Mind village of Anacla, do some 'reverse' engineering for the whole Pacific Ocean basin to account for the tsunami dispersal away from the Cascadia Fault, apply some mathematics and physics using Western scientific methods, at Anacla the tsunami would have been twelve
stories, over 37 metres (120 feet). Now, I hope the Huu-ay-aht First Nations renames their beach back to Anacla or whatever they chose, instead of the old Spanish European, 'plant the flag and conquer' mentality, and change the name*. [Imagesfor Pachena Beach, bc].Pachena Bay Campground | Bamfield, BC | Huu-ay-aht First Nation, Following ten years of interviews, reading, and research, every single First Nation all along the West Coast of North America has stories of the destruction of their villages by earthquake, flood [a tsunami would be better described as a flood, rising from below; rather than a wave, generated across the top, from wind] and landslides. Everybody, everywhere has the same story.
* [Pechina is a municipality of Province of Almería, in the autonomous community of Andalusia, Spain. It is on the site of the ancient town of Urci. Pechina, called Bajjāna in Arabic, was the centre of a Yemeni colony during the period of the Umayyad caliphate in Spain. ~ Wikipedia].
"Just before midnight on January 27, 1700 a tsunami struck the coasts of Japan without warning since no one in Japan felt the earthquake that must have caused it. Nearly 300 years later scientists and historians in Japan and the United States solved the mystery of what caused this “orphan tsunami” through careful analysis of historical records in Japan as well as oral histories of Native Americans, sediment deposits, and ghost forests of drowned trees in the Pacific Northwest of North America, a region also known as Cascadia. They learned that this geologically active region, the Cascadia Subduction Zone, not only hosts erupting volcanoes but also produces megathrust earthquakes capable of generating devastating, ocean-crossing tsunamis. By comparing the tree rings of dead trees with those still living they could tell when the last of these great earthquakes struck the region. The trees all died in the winter of 1699-1700 when the coasts of northern California, Oregon, and Washington suddenly dropped 1-2 m (3-6 ft.), flooding them with seawater. That much motion over such a large area requires a very large earthquake to explain it—perhaps as large as 9.2 magnitude, comparable to the Great Alaska Earthquake of 1964. Such an earthquake would have ruptured the earth along the entire length of the 1000 km (600 mi) long fault of the Cascadia Subduction Zone and severe shaking could have lasted for 5 minutes or longer. Its tsunami would cross the Pacific Ocean and reach Japan in about 9 hours, so the earthquake must have occurred around 9 o’clock at night in Cascadia on January 26, 1700 (05:00January 27 UTC). The Pacific Tsunami Warning Center (PTWC) can created an animation of a historical tsunami like this one using the same tool that it uses to determine tsunami hazards in real time for any tsunami today: the Real-Time Forecasting of Tsunamis (RIFT) forecast model. The RIFT model takes earthquake information as input and calculates how the waves move through the world’s oceans, predicting their speed, wavelength, and amplitude. This animation shows these values through the simulated motion of the waves and as they travel through the world’s oceans one can also see the distance between successive wave crests (wavelength) as well as their height (half-amplitude) indicated by their color. More importantly, the model also shows what happens when these tsunami waves strike land, the very information that PTWC needs to issue tsunami hazard guidance for impacted coastlines. From the beginning the animation shows all coastlines covered by colored points. These are initially a blue color like the undisturbed ocean to indicate normal sea level, but as the tsunami waves reach them they will change color to represent the height of the waves coming ashore, and often these values are higher than they were in the deeper waters offshore. The color scheme is based on PTWC’s warning criteria, with blue-to-green representing no hazard (less than 30 cm or ~1 ft.), yellow-to-orange indicating low hazard with a stay-off-the-beach recommendation (30 to 100 cm or ~1 to 3 ft.), light red-to-bright red indicating significant hazard requiring evacuation (1 to 3 m or ~3 to 10 ft.), and dark red indicating a severe hazard possibly requiring a second-tier evacuation (greater than 3 m or ~10 ft.). Toward the end of this simulated 24 hours of activity the wave animation will transition to the “energy map” of a mathematical surface representing the maximum rise in sea level on the open ocean caused by the tsunami, a pattern that indicates that the kinetic energy of the tsunami was not distributed evenly across the oceans but instead forms a highly directional “beam” such that the tsunami was far more severe in the middle of the “beam” of energy than on its sides. This pattern also generally correlates to the coastal impacts; note how those coastlines directly in the “beam” are hit by larger waves than those to either side of it. The full report about the Orphan Tsunami of 1700 can be found here: https://pubs.er.usgs.gov/publication/...For a NOAA Science on a Sphere version of this animation, please see: http://sos.noaa.gov/Datasets/dataset....
Sound On >> Best Viewed Full Screen >> Darkened Room Please stop using the Richter Scale. It is old, outdated, inappropriate and even misleading. You would think that an increase of M3,0,for anything over about M 7.0.
Tsunami
warning center scientists usually measure an earthquake's "size"
with the moment magnitude scale rather than the older but more famous
Richter magnitude scale. The moment magnitude scale is better suited
for measuring the "sizes" of very large earthquakes and its
values are proportional to an earthquake's total energy release,
making this measurement more useful for tsunami forecasting.
Moment
magnitude numbers scale such that that energy release increases by a
factor of about 32 for each whole magnitude number. For example,
magnitude 6 releases about 32 times as much energy as magnitude 5,
magnitude 7 about 32 times as much as magnitude 6, and so on. This
animation graphically compares the relative "sizes" of some
20th and 21st century earthquakes by their moment magnitudes. Each
circle's area represents its relative energy release, and its label
lists its moment magnitude, its location, and the year it happened.
Dr. Chris Goldfinger of Oregon State University, explains the science and the practical realities of the impending earthquake. He's joined by Rob Johnson, FEMA Disaster Recovery Reservist who will help us understand how our community should respond to such a disaster.
The USGS has just published a new blueprint for advancing science and
resilience related to subduction zone hazards, entitled Reducing Risk
Where Tectonic Plates Collide – A Plan to Advance Subduction Zone
Science. This new Plan describes how the USGS may leverage scientific
and technologic developments, address its stakeholder needs, and
maximize capabilities through partnerships – with the overall goal
of reducing the risks posed by subduction zone events. The Plan is
featured on the USGS main webpage, and a quick summary of the Plan is
provided in an accompanying Fact Sheet (written for a general
audience).
This movie [University of California,
Santa Cruz] shows a physics-based computer simulation of the
tsunami expected from the next Cascadia Earthquake. The last large
Cascadia earthquake happened in January, 1700. It is thought that the
fault is getting toward the final stages in the earthquake cycle and
could break again at any time. The simulation suggests runups of as
much as 10 meters could hit most adjacent shores within 30 minutes.
ShakeOut Day is Set for 10:20 AM local time on Thursday,
October 20, 2016
If you have
never registered for the British Columbia ShakeOut, please use their
form.
If you have previously
registered for the British Columbia ShakeOut, please login to your
ShakeOut profile using the form on the right.
If someone else has
registered your organization in the past, but you will be the
registrant this year, please create a new registration using the
form on the left.
If your organization will participate in two or more ShakeOut
regions, e-mail info@shakeoutbc.ca
for registration assistance.
If you had previously
registered for the British Columbia ShakeOut, please login to your
ShakeOut profile using the form on the right.
If someone else has
registered your organization in the past, but you will be the
registrant this year, please create a new registration using the
form on the left.
If your organization will participate in two or more ShakeOut
regions, e-mail info@shakeoutbc.ca
for registration assistance.
In
the earthquake and tsunami drills for this year, the registered
participants in British Columbia, to date is
796,000, (as of 8:05AM PST, local time October 20, 2016). In the earthquake and tsunami drills in 2015 British
Columbia had a participation rate of 777,000, so this is an increase of 19,000 (2.4 %).
ShakeOut Day is Set for 10:20 AM local time on Thursday,
October 20, 2016
Be Tsunami Smart – (they put this file into a .pdf format
rather than HTML) .pdf - Portable Document Format, as far as I know, .pdf usually requires that you have an additional .pdf reader program on your computer. If I am wrong about that, I am certain someone will let me know in the comments below. If I stand corrected on this, I will humbly apologize. Try mine:
B.C.'s coastal communities have been divided into five
"notification
zones" (PDF, 6.6MB). Without stating or naming the zones? What zone are you in?
.................... Original Release Date - September 19, 2016
News provided by Great
ShakeOut Earthquake Drills International ShakeOut Day is Set for 10:20 AM local time,
October 20, 2016
The (US) Nation Prepares in
September and Gets Ready to ShakeOut
Commit to practicing Drop, Cover, and
Hold On for one minute no matter where you are.
Organizations also need to prepare in advance for potential
earthquake damage. For those in charge of organizations,
ResilientWorkplace.org
houses several resources for developing a strong business continuity
plan, preventing local, state (and/or provincial), and national
economies from grinding to a halt due to a disaster. Great ShakeOut Earthquake Drills are an annual opportunity
for people in homes, schools, and organizations to practice what to
do during earthquakes, and to improve preparedness.
[http://shakeout.org/] International
ShakeOut Day is Set for 10:20 AM Local Time on Thursday, October 20,
2016.
LOS ANGELES, Sept. 19, 2016 /PRNewswire-USNewswire/ -- Great
ShakeOut Earthquake Drills encourage everyone to come
together and take action now to improve how well they can respond to
the next disaster. National Preparedness Month this September
can serve as a lead-up to the International ShakeOut Day, which is
always on the third Thursday of October (this year: 10/20,
though any earthquake drill held throughout the year can count as
participation). Participation in ShakeOut is a commitment to
practicing Drop, Cover, and Hold On for one minute no matter where
you are. All participants are encouraged to register
at ShakeOut.org so
they can be listed and counted in their community. Last year, over
43.5 million people around the world participated in Great
ShakeOut Earthquake Drills. National
Preparedness Month is an opportune time for individuals,
families, schools, colleges, businesses, houses of worship, and
other sectors to prepare to survive and recover from the disasters in
our future. The recent, devastating floods in Louisiana;
wildfires in California; significant earthquakes in Oklahoma; and
storms and tornadoes throughout the Midwest and South are
reminders that we live on a dynamic planet. Yet, disasters do not
have to be catastrophes: we're all in this together.
"Earthquakes can happen at any time of the day and during any
season," FEMA Administrator Craig Fugate said. "We
all should know what to do before, during, and after an
earthquake, regardless of where we live. This year's Great
ShakeOut drill offers an important opportunity to practice
preparedness, and we encourage communities across the nation to join
in so we're ready when disaster strikes."
The U.S. Geological Survey estimates that one in two Americans are
exposed to potentially damaging shaking where they live. In the
1994 magnitude 6.7 Northridge earthquake, most injuries were caused
by people stepping on fallen or broken objects that were not
properly secured. During the month of September, ShakeOut
participants can follow the "Seven Steps to Earthquake
Safety" (EarthquakeCountry.org/sevensteps)
to secure heavy furniture and valuables; retrofit their property;
consider earthquake insurance; organize disaster supplies; and
develop a plan to communicate with family, friends, neighbors, and
co-workers. ShakeOut organizers encourage these steps as a way to
expand beyond the base commitment of holding a Drop, Cover, and
Hold On drill, so that participants can be as best prepared for
earthquakes as possible.
Organizations also need to prepare in advance for potential
earthquake damage. For those in charge of
organizations, ResilientWorkplace.org houses
several resources for developing a strong business continuity plan,
preventing local, state, and national economies from grinding to
a halt due to a disaster. International ShakeOut Day on October 20 is
an opportunity to put plans to the test by practicing Drop,
Cover, and Hold On and drilling other aspects of continuity plans.
"Social science research shows that when people see others
taking action, they are more likely to take action too,"
says Mark Benthien, Outreach Director for the Southern
California Earthquake Center. "National Preparedness Month
and Great ShakeOut Earthquake Drills are ways for all
Americans to come together, inspire action, and improve resilience."
Participants register and find resources for their drills at
ShakeOut.org,
a website managed by the Southern California Earthquake Center (SCEC)
at the University of Southern California. With funding from the
National Science Foundation and United States Geological Survey, SCEC
coordinates earth science research at more than 60 universities. With
additional funding from the Federal Emergency Management Agency,
SCEC's Communication, Education, and Outreach program coordinates
Great ShakeOut Earthquake Drills globally along with regional leaders
worldwide, which includes nearly every U.S. state and territory.
Contact: Jason Ballmann
Southern California Earthquake
Center
213.740.1560 | ballmann@usc.edu
SOURCE Great ShakeOut Earthquake Drills
