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Open-File Report 2014–1250

Proceedings of the 9th U.S.-Japan Natural Resources Panel for Earthquake Research

Edited By Shane T. Detweiler and William Ellsworth

Thumbnail of and link to report PDF (9.8 MB)Introduction

The UJNR Panel on Earthquake Research promotes advanced study toward a more fundamental understanding of the earthquake process and hazard estimation. The Ninth Joint meeting was extremely beneficial in furthering cooperation and deepening understanding of problems common to both the U.S. and Japan. The meeting included productive exchanges of information on approaches to systematic observation and modeling of earthquake processes. Regarding the earthquake and tsunami of March 2011 off the Pacific coast of Tohoku, the Panel recognizes that further efforts are necessary to achieve our common goal of reducing earthquake risk through close collaboration and focused discussions at the 10th UJNR meeting. We look forward to continued cooperation on issues involving the densification of observation networks and the open exchange of data among scientific communities. We recognize the importance of making information publicly available in a timely manner. We also recognize the importance of information exchange on research policy and strategies, including the frameworks of research organizations.

Areas of Cooperation

–Specific areas of earthquake research where cooperative research between the U.S. and Japan may lead to significant advancement include, but are not limited to:

–Probabilistic earthquake and tsunami hazard estimation, including extraordinarily large earthquakes, both in our respective countries and worldwide, incorporating knowledge of current and past behavior, and physics based computational models;

–Real-time information from seismic, geodetic and strain measurements, including borehole strainmeters and seafloor observations using offshore cabled networks;

–Technologies for measuring crustal deformation;

–Early warning technologies for earthquakes and tsunamis; Studies of recurrence of large and extraordinary large earthquakes using paleoseismic, paleotsunami, geodetic and seismic methods;

–Laboratory, theoretical and in situ studies of fault-zone processes;

–Studies of episodic tremor and slow slip events using seismic, geodetic, and borehole strain measurements, and simulation techniques;

–Systematic studies of earthquake predictability through rigorously evaluated scientific prediction experiments and robust databases;

–Studies of near-source ground motions, geological effects and the response of engineered structures.

The Panel strongly urges that the appropriate agencies in the U.S. and Japan that are represented on this panel work together with the academic sector to support and coordinate scientific work in these areas of cooperation. The Panel recognizes the importance of promoting the exchange of scientific personnel, exchange of data, and fundamental studies to advance progress in earthquake research. The U.S. and Japan should promote these exchanges throughout the world. The Panel endorses continuation of these activities. 

First posted March 26. 2015

This publication is only available online

For additional information, contact:
Earthquake Science Center—Menlo Park, Calif. Office
U.S. Geological Survey
345 Middlefield Road, MS 977
Menlo Park, CA 94025
http://earthquake.usgs.gov/

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Suggested citation:

Detweiler, S., and Ellsworth, W., eds., 2015, Proceedings of the 9th U.S.-Japan natural resources panel for earthquake research: U.S. Geological Survey Open-File Report 2014–1250, 89 p. https://dx.doi.org/10.3133/ofr20141250.

ISSN 2331-1258 (online)


Contents

Introduction

Agenda

Session I Abstracts

Interplate coupling on and around the focal area of the 2011 off the Pacific Coast of Tohoku Earthquake, Japan

Location and structure of the subduction thrust in the region of maximum slip during the 2011 MW 9.0 Tohoku-Oki earthquake

Coseismic fault rupture reaching the trench axis during the 2011 Tohoku-Oki earthquake

The 2011 Tohoku-Oki earthquake and the Advanced Rapid Imaging and Analysis (ARIA) Project for Natural Hazard Monitoring and Response

The 2011 Tohoku-oki Earthquake related to a strong velocity gradient within the Pacific plate

Uncovering the Mysteries of Tsunami Generation and Anomalous Seismic Radiation in the Shallow Subduction Zone

Stress states before and after the 2011 Great Tohoku earthquake in and around the focal region

Geodetic imaging of coseismic slip and postseismic afterslip: Sparsitypromoting methods applied to the great Tohoku Earthquake

GSI activities in response to the 2011 off the Pacific coast of Tohoku Earthquake

Session II Abstracts

USGS Seismic Hazard Mapping Efforts: U.S. National Seismic Hazard Maps and Urban Seismic Hazard Maps Based on 3D Simulations

National Policy and Project on the Earthquake Research after the 2011 Off the Pacific Coast of Tohoku Earthquake

E-DECIDER: Experiences Developing Earthquake Disaster Decision Support and Response Tools

Some considerations for improvement of the National Seismic Hazard Maps for Japan

Time-independent earthquake forecasts for the Intermountain West, United States

Session III Abstracts

Assessing Tsunami Hazard from Paleotsunami Deposits

Strategy for evaluating giant earthquake and tsunami by coastal paleoseismology

JMA's response to the 2011 off the Pacific coast of Tohoku Earthquake and planned Improvements of Tsunami Warning

Session IV Abstracts

Nonlinear site and topography effects in ground motion predictions: Observations, Hypotheses and Lessons to be learned

Strong motion characteristics of the 2011 Tohoku-Oki earthquake observed by K-NET and KiK-net

Reconciling precariously balanced rocks with large earthquakes on the San Andreas fault system

Session V Abstracts

Betting against the house and peer-to-peer gambling: a Monte Carlo view of earthquake forecasting

Information services on earthquake prediction and forecast of JMA

Earthquake Early Warning of JMA- The 2011 off the Pacific coast of Tohoku Earthquake and its aftershocks

Early Warning on the US West Coast

Session VI Abstracts

Potential contributions of Seafloor Geodesy to understanding slip behavior along the Cascadia Subduction Zone

Performance Tests of Real-Time Permanent Displacement Estimates and Rapid Rupture Characterization From Real-Time High-Rate GPS

Integrating GPS and Radar Geodetic Imaging Observations with Models for Earthquake Response and Planning Additional data Collection

Rapid assessment of high seismic intensity areas for mega-earthquake using satellite SAR data

Real-Time Monitoring at the USGS National Earthquake Information Center: Past, Present, Future

NSF's EarthScope Program – Introduction and Updates

Poster Session (Session VII) Abstracts

Ocean bottom seismic and tsunami network along the Japan Trench

Developing a GEONET Real-time Processing System for Rapid Earthquake Modeling

Asia-Pacific Region Global Earthquake and Volcanic Eruption Risk Management (G-EVER) project

Session VIII Abstracts

Dynamics of Migrating Earthquake Swarms at Yellowstone and Mount Rainier Volcanic Areas: Evidence for Fluid Triggering?

Detection of short-term slow slip events along the Nankai trough, southwest Japan using GNSS data

Mitigation of Earthquake Hazards with a Seismogeodetic Model as Demonstrated for the 2011 Mw 9.0 Tohoku-oki Earthquake

Short-term slow slip events in the Kii peninsula by joint analysis of the AIST borehole strainmeter array and the NIED Hi-net tiltmeter array

3D quasi-dynamic modeling of cycles of megathrust earthquakes along the Japan Trench subduction zone considering high-speed friction

Advantages and Limitations of Cluster Analysis in Interpreting Regional GPS Velocity Fields in California and Elsewhere

Characteristic activity of tremor as proxy for slow slip in the transition zone along the subducting plate interface

Repeating Earthquakes on the Parkfield Segment of the San Andreas: Do They Reload Themselves?

Keynote Talk Abstracts

Earthquake loss modeling on a global scale: balancing empirical & physics-based approaches

UNAVCO: Recent Earthquake Responses, Multi-hazard Networks, and Technology Development

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