Tuesday, June 27, 2017

Reducing Risk Where Tectonic Plates Collide – A Plan to Advance Subduction Zone Science

Bellingham City Club: Impending Earthquake Reality

https://youtu.be/HBLMgkA3nHM
(1:12:32 minutes)


Published
on Nov 20, 2015
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.

Following received at 10AM Pacific Daylight time from Southern California Earthquake Center <specinfo@usc.edu>
On Behalf of Joan Gomberg, U.S. Geological Survey
June 21, 2017

USGS publishes a new blueprint that can help make subduction zone areas more resilient

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).

URLs for viewing and downloads:

Fact Sheet,
https://urldefense.proofpoint.com/v2/url?u=https-3A__pubs.er.usgs.gov_publication_fs20173024&d=DwIGaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=xXRRpB0FR_i19K82Q3RKbldH199seM5T9mEdX11xccM&m=tRyajiwyfwLI9bXMMQ8uIqHnuvb2T9kJqYtxXi77Oiw&s=utCuGK5Ejgp9VNzv8MbwBLlZ8-KzPfqvPOagL5IqiLQ&e= .

Plan,
https://urldefense.proofpoint.com/v2/url?u=https-3A__pubs.er.usgs.gov_publication_cir1428&d=DwIGaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=xXRRpB0FR_i19K82Q3RKbldH199seM5T9mEdX11xccM&m=tRyajiwyfwLI9bXMMQ8uIqHnuvb2T9kJqYtxXi77Oiw&s=JE1-RMaysZVtMOIUx7Jbi7tHZ_2c4UQXRZZy1YTaSg8&e= .

USGS
Featured Story,
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.usgs.gov_&d=DwIGaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=xXRRpB0FR_i19K82Q3RKbldH199seM5T9mEdX11xccM&m=tRyajiwyfwLI9bXMMQ8uIqHnuvb2T9kJqYtxXi77Oiw&s=fde2aYAk6KTbP0H2ERqtWPIir3NHQkWGHA9kWP2EA5A&e=
and 
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.usgs.gov_news_usgs-2Dpublishes-2Da-2Dnew-2Dblueprint-2Dcan-2Dhelp-2Dmake-2Dsubduction-2Dzone-2Dareas-2Dmore-2Dresilient&d=DwIGaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=xXRRpB0FR_i19K82Q3RKbldH199seM5T9mEdX11xccM&m=tRyajiwyfwLI9bXMMQ8uIqHnuvb2T9kJqYtxXi77Oiw&s=2mE03LPIfi_m0NQFK4NDFLBj4NiwDYR2l0u30A9o25U&e=

Thursday, May 25, 2017

Earthquakes, Tsunamis and Volcanoes: History and Stories of Survival, both Fiction and Non-Fiction

This is all very serious … a great Icelandic artist, Björk Guðmundsdóttir, has done a very visual representation (shown earlier in the blog/website): 
[https://cascadiamegaquake.blogspot.ca/2017/05/bjrk-mutual-core-official-art-music.html]

Selected Bibliography, UPDATED TO:  May 25, 2017, and
Hyperlinked to the North Shore of Vancouver, BC's main libraries:

  • Article from The New Yorker - “When the Cascadia fault line ruptures, it could be our worst natural disaster in recorded history” ... READ ITIf, on that occasion, only the southern part of the Cascadia subduction zone gives way ... the magnitude of the resulting quake will be somewhere between 8.0 and 8.6. Thats the BIG ONE. If the entire zone gives way at once, an event that seismologists call a full-margin rupture, the magnitude will be somewhere between 8.7 and 9.2. That’s the VERY BIG ONE. Kenneth Murphy, when he was interviewed for the article, and who had directed FEMA’s (Federal Emergency Management Agency: FEMA.gov www.fema.gov/) - (Disaster mitigation, preparedness, response, recovery, education, and references.) Region X, the division responsible for Oregon, Washington, Idaho, and Alaska), says, “Our operating assumption is that everything west of Interstate 5 will be toast.” (The Editor of this note – SGW) adds that, in the CSZ - Cascadia Subduction Zone, the Juan de Fuca Plate continues all the way up to the Nootka Fault, midway up Vancouver Island's West Coast. There is another tectonic plate to the north, the Explorer Plate as well as the south, the Gorda Plate. The problem, you see, is that the land under our feet is NOT really “as firm as the ground we walk on”.
  • It is the North American Plate covering most of North America, Greenland, Bering Sea, Atlantic Ocean, Arctic Ocean. It starts in the east, at the Mid-Atlantic Ridge, and covers the area westward to the Chersky Range in eastern Siberia. The plate includes both continental and oceanic crust. It is moving inexorably to the west at between a speed of variously reported as 56–102 mm (2.2–4.0 in)/year, sometimes between 15-25 mm (0.59-0.98 in)/year, relative to the African Plate.  Recent GPS readings on the tops of the Olympic Mountains in Northwest Washington through to the Coast Range North West of Campbell River show that these mountains continue to be forced up, and over the Pacific Plate which is subducting beneath. The Pacific Plate  is 75,900,000 km2 (29,300,000 sq mi).  The CSZ - Cascadia Subduction Zone, the boundary between the North American Plate and the Pacific Plate, has been locked up for over 300 years.  If it breaks loose all at the same time, in a full margin rupture, at present the net deficit for the entire Pacific Northwest and Southwest B.C. is about down two meters (6.5 feet) and a jump 6.5 meters (21 feet) to the south-west.  In other words, the entire west coast will drop down two meters (6.5 feet) and lurch 6.5 meters (21 feet) to the south-west.  In each of many other Subduction Zone events in Alaska, Chile, Indonesia, Japan, Portugal these are all accompanied by megatsunamis.  The type of subduction zone great quake happens continuously over a period lasting for six (6) to fifteen (15) minutes.
  • Of special note: Cascadia's Fault The Deathly Earthquake That Will Devastate North America By Thompson, Jerry Book - 2011
  • The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. At 103 million square kilometres (40,000,000 sq mi), it is the largest tectonic plate.
    Type Major
    Approx. Area 103,300,000 km2 (39,900,000 sq mi)[1]
    Movement1 north-west
    Speed1 56–102 mm (2.2–4.0 in)/year
North America, Greenland, Bering Sea, Atlantic Ocean, Arctic Ocean
1Relative to the African Plate
Type Major
Approx. Area 75,900,000 km2 (29,300,000 sq mi)[1]
Movement1 west
Speed1 15–25 mm (0.59–0.98 in)/year
CHILDREN'S SECTIONS:
OTHERS (eBooks that also have a printed copy may also be listed, above):
  1. Are You Ready? How to Prepare for An Earthquake By Mooney, Maggie eBook - 2011
  2. Walkabout DVD - 1998
  3. The World Is Moving Around Me A Memoir of the Haiti Earthquake By Laferrière, Dany

Saturday, May 20, 2017

Icelandic Native, Bjӧrk - Mutual Core - OFFICIAL - Art + Music - MOCAtv



Published on Nov 13, 2012
In "Mutual Core," recorded by Björk for her seventh album Biophilia, the earth's geology is a metaphor for human relationships. Eruptions and earthquakes, the building of continents, the formation of mountain ranges and oceanic trenches: all are powerful signs of the earth's structure and mechanics. Represented musically by the violent interruption of block rocking beats, video director Andrew Thomas Huang here depicts the push and pull of tectonic plates with anthropomorphized rocks, lava and sand encircling Björk in dance, their psychedelic innards resembling the frayed strands of a Fritz Haeg rug.

Directed by Andrew Thomas Huang
http://www.andrewthomashuang.com

Reykjavik Unit:

Producer: Árni Björn Helgason
Director of Photography: August Jakobsson
Production Designer: Gus Olafsson
Hair & Makeup Artist: Frida Maria Hardardottir

Los Angeles Unit:

Director of Photography: Laura Merians
Production Designer: Hugh Zeigler

VFX Executive Producer: David Lyons
Lead CG Supervisor: Michael Ranger
Lead Compositor: Lindsey Fry
FX Technical Director: Nico Sugleris

Director's Rep: LARK Creative

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ArtIsForYou20
  • Category

  • License

    • Standard YouTube License

Tuesday, April 25, 2017

540 Million Years (One MA = One Million Years) in 6:34 minutes - Plate Tectonics, 540Ma - Modern World - Scotese Animation 022116b


Plate Tectonics, 540Ma - Modern World - Scotese Animation 022116b


An Intelligent Man 

Published on Feb 21, 2016
This animation shows the plate tectonic and paleogeographic evolution of the Earth back to 540 million years, (ago). It also shows the major ice ages at : 20,000 years, 300 years, and 445 million years (ago).
This animation should be cited as
Scotese, C.R., 2016. Plate Tectonics, Paleogeography, and Ice Ages, (Modern World - 540Ma), YouTube Animation 
https://youtu.be/g_iEWvtKcuQ.

    From Wikipedia
    Ma (for megaannus), is a unit of time equal to one million, or 106, years, or 1 E6 yr. "Ma" is commonly used in scientific disciplines such as geology, paleontology, and celestial mechanics to signify very long time periods into the past or future. For example, the dinosaur species Tyrannosaurus rex was abundant approximately 66 Ma (66 million years) ago. The duration term "ago" may not always be indicated: if the quantity of a duration is specified while not explicitly mentioning a duration term, one can assume that "ago" is implied; the alternative unit "mya" does include "ago" explicitly. In astronomical applications, the year used is the Julian year of precisely 365.25 days. In geology and paleontology, the year is not so precise and varies depending on the author.