Transcript MARGINS SEIZE Workshop – The next decade of the Seismogenic Zone Experiment Timberline Lodge, Mt.

MARGINS SEIZE Workshop –
The next decade of the Seismogenic Zone Experiment
Timberline Lodge, Mt. Hood, Oregon
September 22 – 26, 2008
Workshop goals
What are the major emerging scientific
questions/directions for SEIZE?
• Review SEIZE accomplishments at the focus
sites, Nankai and Costa Rica
(What are the remaining gaps, based on the original SEIZE
Science Plan and in light of major new findings?)
• Review Non-Focus Site Science
(What are the critical issues that have not been addressed at
the focus sites, and where should they be addressed?)
• Examine New Methods/Strategies
What are the major emerging scientific
questions/directions for SEIZE?
Charges to break-out groups:
1) Are new facilities and/or technologies available or required to achieve
these goals? If so, what are they?
2) Should SEIZE continue with the existing focus sites, develop new sites,
or move away from focus sites and into more thematic based initiatives?
3) Why, if at all, does addressing the remaining and emerging science
objectives of SEIZE require funding via a dedicated program rather than through
NSF core funding?
4) What more can be done to develop the broader goals of societal
relevance, such as outreach and education, geohazards (beyond seismic hazards),
and developing international partnerships? In particular, are there communities
and/or connections that should be targeted for increased participation in a future
program (e.g. what scientific disciplines, educational programs, IODP community,
etc.)?
Discussion
• What are the remaining gaps, based on
the original SEIZE Science Plan and in
light of major new findings?
Tuesday AM
•
NanTroSEIZE review 20 MINUTE TALKS, 5 MINUTE QUESTIONS
•
DISCUSSION - (What are the remaining gaps for Nankai, based on the original
SEIZE Science Plan and in light of major new findings?)
Costa Rica review 20 MINUTE TALKS, 5 MINUTE QUESTIONS
DISCUSSION - (What are the remaining gaps for Costa Rica/Nankai, based on the
original SEIZE Science Plan and in light of major new findings?)
Posters and Reception
Tuesday PM
Costa Rica review 20 MINUTE TALKS, 5 MINUTE QUESTIONS
DISCUSSION - (What are the remaining gaps for Costa Rica/Nankai, based on the
original SEIZE Science Plan and in light of major new findings?)
Posters and Reception
Wednesday AM
Non-Focus Site review 20 MIINUTE TALKS, 5 MINUTES QUESTIONS
DISCUSSION - (What are the critical issues that have not been addressed at
the focus sites, and where should they be addressed?)
Wednesday PM
New Methods/Strategies 25 MIN TALKS 5 MIN QUESTIONS
DISCUSSION (What are the major emerging scientific questions/directions for
SEIZE?)
Thursday
New Methods (cont.) 25 MIN TALKS, 5 MIN QUESTIONS
•
DISCUSSION (Using SEIZE data in the classroom)
•
Break-out Group Summaries and Discussion
- Break-out group summaries 30 MINUTES EACH
Final discussions
Tuesday AM
•
•
Introduction
8:00
N. Bangs/G. Abers - Welcome/Goals of the Workshop
•
8:10
D. Smith (NSF) – NSF Update
•
NanTroSEIZE review 20 MINUTE TALKS, 5 MINUTE QUESTIONS
•
8:20
H. Tobin
•
8:35
G. Moore - Structural and stratigraphic setting of the NanTroSEIZE Kumano
transect from 3D seismic data
•
9:00
H. Tobin
- In situ properties, structure, and state of stress in the NanTroSEIZE
transect: Logging While Drilling results from IODP Expedition 314
•
9:25
T. Byrne
- Preliminary results from IODP Expedition 315, Nankai Trough
•
9:50
•
10:10 G. Kimura - Nankai Trough shallow splay and frontal thrust: IODP Expedition 316
•
10:35 D. Saffer
- From the trench to the seismogenic zone: Establishing links between,
fluid pressure, low-T metamorphism, and fault stability
•
10:50 Y. Ito
- Very-low-frequency earthquake within accretionary prism along
Nankai Trough
•
11:15-12:15
DISCUSSION - (What are the remaining gaps for Nankai, based on the original
SEIZE Science Plan and in light of major new findings?)
- NanTroSEIZE: The IODP Nankai Trough Seismogenic Zone Experiment
BREAK
Tuesday PM
Costa Rica review 20 MINUTE TALKS, 5 MINUTE QUESTIONS
•
1:30
M. Protti
- Seismicity reveals clear segmentation and differences in coupling
along the Costa Rica subduction zone
•
1:55
K. McIntosh
- Seismic reflection and refraction structure of the Middle
America trench, Nicaragua and Costa Rica
•
2:20
A. Newman
- Geodetic and seismic characteristics of the Middle America Trench:
Focus on northern Costa Rica and Nicaragua
•
2:45
•
3:05
P. LaFemina
- Forearc motion and Cocos Ridge collision in Central America
•
3:30
R. Harris
•
3:55
C. Ranero
- The thermal structure of the Costa Rica margin along the Middle
America trench
- Costa Rica seismogenesis project (CRISP), a complex drilling proposal
at the IODP
•
4:20 – 6:00 DISCUSSION - (What are the remaining gaps for Costa Rica/Nankai, based on the
original SEIZE Science Plan and in light of major new
findings?)
•
7:30 – 9:00
BREAK
Posters and Reception
Wednesday AM
Non-Focus Site review 20 MIINUTE TALKS, 5 MINUTES QUESTIONS
•
8:00
D. Fisher
•
8:25
J.-P. Avouac - Interseismic stress build up, co-seismic stress release and
afterslip on the Sumatra megathrust
•
8:50
C. Goldfinger - Plate boundary submarine paleoseismology
•
9:15
A. Trehu
- Low angle thrust earthquakes in the "locked zone" beneath the
central Cascadia continental margin
•
9:40
J.C. Moore
- World’s thickest seismogenic fault rock from a subduction complex,
Kodiak Islands, Alaska
•
10:05
•
10:25 F. Chester
- Mesoscopic scale structure in spot core from the San Andreas fault
zone at SAFOD
•
10:50 S. Kirby
- Great and giant subduction earthquakes and regional and
transoceanic tsunamis that they spawn: Global trends, exceptions to
the trends and geohazards implications
•
11:15-12:15
- Variations in shallow structure across the Sumatran Forearc based on
a high resolution single-channel seismic reflection survey
BREAK
DISCUSSION - (What are the critical issues that have not been addressed at
the focus sites, and where should they be addressed?)
Wednesday PM
New Methods/Strategies 25 MIN TALKS 5 MIN QUESTIONS
•
1:30
E. Davis
- Using pressure as a proxy for strain: A review of ODP/IODP
“CORK” technology and observations
•
2:00
K. Brown
- Observatories, Costa Rica
•
2:30
E. Roeloffs
- Borehole strainmeters: Instruments for measuring aseismic deformation in
subduction zones
•
3:00
BREAK
•
3:20
D. Chadwell
- Seafloor geodesy: Transitioning to continuous monitoring of plate
motion in subduction zones
•
3:50
E. Araki
- Development of cabled seafloor seismo-geodetic network and seafloor
borehole observatories in the Nankai Trough
•
4:20-6:00
DISCUSSION (What are the major emerging scientific questions/directions for
SEIZE?)
Charges to break-out groups:
1) Are new facilities and/or technologies available or required to achieve
these goals? If so, what are they?
2) Should SEIZE continue with the existing focus sites, develop new sites,
or move away from focus sites and into more thematic based initiatives?
3) Why, if at all, does addressing the remaining and emerging science
objectives of SEIZE require funding via a dedicated program rather than through
NSF core funding?
4) What more can be done to develop the broader goals of societal
relevance, such as outreach and education, geohazards (beyond seismic hazards),
and developing international partnerships? In particular, are there communities
and/or connections that should be targeted for increased participation in a future
program (e.g. what scientific disciplines, educational programs, IODP community,
etc.)?
Thursday
New Methods (cont.) 25 MIN TALKS, 5 MIN QUESTIONS
•
8:00
K. Wang
•
8:30
S. Schwartz - Slow slip- An ubiquitous yet poorly understood mode of strain release
•
9:00
C. Ammon
- Broadband seismic imaging of large earthquake ruptures
•
9:30
Y. Liu
- Role of fault dilatancy in subduction zone aseismic deformation transients
•
10:00 C. Marone
•
10:30
•
•
Education and Outreach
10:50 D. Reed
- Bringing MARGINS science to the Classroom – Examples from SEIZE
•
11:10 A Goodwillie - GeoMapApp database tools
•
11:45-12:15
•
Break-out Group Summaries and Discussion
•
•
•
1:30
2:30 Break
2:50 – 6:00
- Observing a subduction-zone earthquake cycle within a decade
- Mechanics of the seismogenic zone: Frictional properties and hydromechanical processes related to the updip transition from stable to unstable faulting
BREAK
DISCUSSION (Using SEIZE data in the classroom)
FIVE-MINUTE PRESENTATIONS
- Break-out group summaries 30 MINUTES EACH
Final discussions