EERI Newsletter, June 2013 Vol. 47, Num. 6

NEWS OF THE INSTITUTE 10NCEE Conference: Paper Abstracts due June 15, 2013 The Tenth U.S. National Conference on Engineering (10NCEE) in Anchorage, Alaska, July 21–25, 2014, will be held on the 50th Anniversary of the Great Alaska Earthquake and Tsunami. The theme for the conference is “Frontiers of Earthquake Engineering.”

The 10NCEE will provide opportunities for researchers and practitioners EARTHQUAKE ENGINEERING to share knowledge and inquiries for mitigating the damaging effects of RESEARCH INSTITUTE and tsunamis. Concurrent knowledge- NEWSLETTER building events: the 2014 EERI Annual Meeting and Earthquake Engineering 2014 NEES Quakes Summit, Research Institute 499 14th Street, Suite 220 will take place as part of the Oakland, California 94612-1934 conference. phone: 510-451-0905 fax: 510-451-5411 Abstracts due June 15 email: [email protected] website: www.eeri.org Prospective authors are encouraged to submit Editor Mark Yashinsky abstracts for the 10NCEE. LFE Insert Editor Sarah Nathe A fault trace along the Denali fault. Photo by Dr. Richard Koehler. Associate Editor Gerald Brady You may submit your Editorial Manager My Davidson abstract online at http://submissions.miracd.com/10NCEE/login.aspx. More ISSN 0270-8337 information about this call for abstracts can be found at the 10NCEE website at Reproduction with attribution is permitted. www.10ncee.org.

Technical Tours EARTHQUAKE ENGINEERING RESEARCH INSTITUTE The 10NCEE local organizing committee in Anchorage is preparing pre- conference and post-conference technical tours that will highlight Alaskan PRESIDENT scenery at http://10ncee.org/technical-tours/. Ian G. Buckle continued on page 2 PAST PRESIDENT L. Thomas Tobin VICE PRESIDENT 2013 EERI Technical Seminar Series: David A. Friedman PEER NGA-West2 Project SECRETARY-TREASURER Janiele Maffei This November, the Earthquake Engineering Research Institute, the Pacific BOARD OF DIRECTORS Earthquake Engineering Research Center (PEER), and partner organizations Scott Ashford will hold their 2013 Technical Seminar Series focusing on the PEER NGA-West2 Ian G. Buckle Project. The seminar series will describe the NGA-West2 findings, discuss the Kenneth Elwood implementation of the new GMPEs and other research outcomes, and summarize David A. Friedman impacts on the earthquake engineering community. Roberto Leon Janiele Maffei PEER’s NGA-West2 Project, Phase 2 of the Next Generation Attenuation (NGA) Kathleen Tierney relationships for shallow crustal earthquakes in active tectonic regions, is coordinated L. Thomas Tobin Ivan Wong by the Pacific Earthquake Engineering Research Center (PEER) and financially supported by the California Earthquake Authority (CEA), the California Department EXECUTIVE DIRECTOR Jay Berger of Transportation (Caltrans), and the Pacific Gas & Electric Company (PG&E). continued on page 2 1 EERI Newsletter, June 2013 Vol. 47, Num. 6 10NCEE Conference: Paper Abstracts due June 15, 2013 continued from cover page the Northern Foothills Fold and Discover Alaska Thrust Belt. In addition to the extensive Technical tours, or field trips, will technical program, concurrent be developed over the summer • The “A Trip Back in Time: The events, and technical tours and finalized prior to the start of Mountains and Glaciers of planned for the 10NCEE, the city conference registration. Proposed Turnagain Arm and Portage of Anchorage in July will provide field trips include: Valley” technical tour is a half-day excursion along the plenty of sunshine and unique • The “Active Faults and Seismic Turnagain Arm, a glacial fjord local activities. Hazards in Central Alaska” located between the Chugach The 10NCEE local organizing technical tour provides and Kenai Mountains. committee, along with Visit memorable views of the • The “Earthquakes and Tsunamis Anchorage, created a list of their Susitna Basin, Alaska Range, in Alaska and Beyond” technical favorite things to see and do in Denali National Park, Tanana tour travels from Anchorage nearby areas of Alaska. Browse this Valley, Copper River Basin, north to the Matanuska-Susitna list and its accompanying photo and the Wrangell Mountains, Valley to visit and discuss gallery at http://10ncee.org/things- and includes stops along the examples of local damage from to-do-in-alaska/. Castle Mountain and Denali the 1964 M9.2 Great Alaska faults as well as the faults of Earthquake and Tsunami.

2013 EERI Technical Seminar Series: ANNOUNCEMENT PEER NGA-West2 Project Spectra Special continued from cover page; also see the overview of the NGA-West2 Project Issue on NGA-West2 article on page 6 and the NGA-West2 Database; the 2013 version of the U.S. National In August 2014, Earthquake Spectra NGA-West2’s products include Seismic Hazard Maps; design maps; (EQS) will publish a themed issue published reports describing the and applications of the NGA-West2 with manuscripts on the NGA- newly updated ground motion products, such as the Diablo Canyon West2 Project—the Phase 2 of prediction equations (GMPEs) and Nuclear Power Plant, and the effects the Next Generation Attenuation other research studies supporting of the updates on building design. (NGA) relationships for shallow GMPE development, along with crustal earthquakes in active the NGA-West2 Database Flatfile. Venues tectonic regions. Similar to the first phase, NGA- EERI’s 2013 Technical Seminars will West2 will have major impacts on take place in four cities in the first John Douglas and Steven Kramer the entire earthquake engineering weeks of November: will serve as guest editors for community. For example, the this special issue of the journal. USGS is reviewing the NGA-West2 • Salt Lake City, Utah If you have any questions, please GMPEs to consider their adoption • Long Beach, California contact Liz Hogan Stalnaker, EQS for the upcoming US National • Seattle, Washington, and Managing Editor, at [email protected]. Seismic Hazard Maps. Site-specific • San Francisco, California. Long-time EQS journal readers may applications will also be affected by remember the highly cited 341-page the NGA-West2 products. Registration for the 2013 Technical Seminar Series will open later this special issue of Earthquake Spectra Seminar Topics summer. If you have questions about 24:1 (February 2008) that presented Presentations for the 2013 the seminar series, email the Institute the principal results of Phase 1 of Technical Seminar Series, “PEER at [email protected]. the Next Generation Attenuation NGA-West2 Project,” include an (NGA) Relations Project.

2 EERI Newsletter, June 2013 Vol. 47, Num. 6

LEARNING FROM EARTHQUAKES M5.7 Earthquake Near Lake Almanor, California

This article was written by Caltrans Damage near Lake Almanor and Studies are underway to determine geologist Martha Merriam. the nearby community of Greenville the source of the shaking, which included fallen chimneys, cracks occurred within a loosely defined The weekend-getaway location in walls, grocery shelves emptying, fault zone extending from of Lake Almanor in northeastern rupture of the main pipe from a Lake Tahoe to Oregon locally California was rocked May 23, 2013, community drinking water supply characterized by short, mostly shortly before 9 pm, by a M5.7 tank, and minor rock slides on nearby discontinuous faults with both earthquake. This earthquake was highways. P&GE’s Canyon Dam, lateral and dip slip components. located 11 km WNW of Greenville, which created Lake Almanor, was The fault nearest the activity is the CA and it occurred at 2013-05-24 inspected shortly after the main shock Indian Valley fault, which according 03:37.08 UTC (see Figure 1). The and found to be unaffected, as were to the California State Geologist, epicenter was at latitude 40.1895N, roads and bridges in the area that were Jim Parrish, is an early candidate for longitude 121.061W, and 11 km inspected by Caltrans workers. being the source of the activity. below the ground surface. It was followed by a normal sequence The main shock was felt unusually The Indian Valley fault has a of aftershocks totaling nearly 300 far from the epicenter throughout right-lateral strike-slip sense of events in the first two days after the the Sacramento Valley up to 150 displacement in a northwesterly initial shock with two aftershocks miles away, reflecting underlying direction, in agreement with focal having magnitudes of greater than 4 soft sedimentary materials which mechanisms developed for the main (see Figure 2). The last earthquake of amplify seismic waves, and in Nevada shock. Installation of additional this size in northeastern California and Oregon. Near the epicenter in a seismic recorders in this sparsely was the 1975 Oroville earthquake, mountainous region where the Sierra populated region of California which occurred on a different fault and Cascade Ranges come together, will likely lead to clarification of system located about 50 miles motion was reported as “violent” and the causative fault and associated southwest of this event. as a “giant jerk.” changes in stress which resulted in this earthquake.

Figure 1. USGS Community Intensity Map, prepared Figure 2. Nearly 300 aftershocks with magnitudes about 1.5 and greater Saturday, May 25, 2013. Source: http://earthquake. occurred within two days of the main shock, the M5.7 earthquake near usgs.gov/earthquakes/eventpage/nc71996906#dyf Lake Almanor. Source: http://earthquake.usgs.gov/earthquakes/map/

3 EERI Newsletter, June 2013 Vol. 47, Num. 6

LEARNING FROM EARTHQUAKES Mw 6.4 Shonbeh (), Earthquake

Contributed by researchers from the fault, having a north-south strike with International Institute of Earthquake a NNW-SSE trend. The fault segment is Engineering and Seismology (IIEES) known to be about 100km long, and is in Tehran, and the located in the east of the Mond anticline. University in Bushehr. The members of this joint reconnaissance team started their study on April 9, 2013, and made a visit to the epicentral region on April 14, 2013.

Introduction At 11:52 UTC (16:22 local time), April 9, 2013, a Mw 6.4 earthquake Figure 2. The quick moment tensor struck Shonbeh in the sparsely Figure 1. Location of the April 9, 2013, solutions (EMSC). populated region in Mw6.4 Shonbeh, Bushehr, SW Iran South Iran, 89 km southeast of earthquake (adopted from Google map, Read the Report Bandar (Figure 1). Shonbeh has a 2013). The full “Mw 6.4 Shonbeh population of about 6,000 people. (Bushehr), Iran Earthquake” report The earthquake killed at least 37 and The fault passes from the western — including sections on seismicity, injured more than 950 people. part of the Jashk Salt Diapir, one of geotechnical features, structural the largest and most active salt domes damage, and disaster management Since the earthquake happened in of Iran, about 144 km southeast of — is available online at www.eeri.org/ the afternoon, most of the people Bushehr. The dome is 1350 m above projects/learning-from-earthquakes- were outdoors, so about 60% of sea level. Some NNW-SSE surface lfe/lfe-reconnaissance-archive/. the victims were either women or fissures (N300-320) were observed elderly family members. The event after the earthquake. destroyed 100 houses, left 1,000 homeless, and damaged 500 more houses in nearby villages. The NEWS OF THE INSTITUTE early financial assessment of the earthquake losses by the governor Spectra Offers New “Preprint” Option general of Bushehr was form — on the Earthquake Spectra about $50 million USD (Mehr News EERI aims to disseminate the website (http://earthquakespectra. Agency, April 10, 2013). scientific findings fromEarthquake Spectra (EQS) manuscripts through org/). When the final, published According to the Euro- distribution and citation as swiftly as version of this paper is posted Mediterranean Seismological possible following the manuscript’s online, it will replace the preliminary Center (EMSC), the earthquake official acceptance. To further this version, the Preprint, at the specified exhibited an almost pure thrust focal aim, Earthquake Spectra will begin DOI. mechanism, with a NW–SE fault offering a Preprint option for accepted Queue and Questions plane and a focal depth of 10 km manuscripts to authors this spring. EQS Managing Editor Liz Hogan (Figure 2). Other reports on focal Stalnaker will contact authors before mechanisms (i.e., by the USGS) Preprint Option the journal goes live with Preprints show a mostly compressional strike- Once a paper is accepted for (for manuscripts that are currently slip component. publication and any associated author charges are paid, the paper is assigned accepted and in the publication The most important fault in the a DOI (digital identifier) and is hosted queue). If you have any questions, epicentral region is the Borazjan — in its un-copyedited and un-typeset email Liz at [email protected].

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NEWS OF THE INSTITUTE Webinar: Fiber-Reinforced Concrete in Shear Wall Coupling Beams

Join us for the next NEES-EERI inelastic deformations, and it is two four-story coupled wall systems, Research to Practice Webinar on the important for these beams to have and design and construction “Use of High-Performance Fiber- a high energy dissipation capability procedures for buildings under Reinforced Concrete in Design of and good stiffness retention. Current construction in the Seattle area. Earthquake Resistant Shear Wall design practice uses heavy diagonal Coupling Beams” at noon on July reinforcement in RC coupling 10. Webinar presenters include beams, but the placement of such Cary Kopczynski, Principal, Cary reinforcement is labor intensive and Kopczynski & Company; Gustavo J. costly. New EERI Online Parra-Montesinos, PhD, University Membership Directory of Wisconsin; and James K. Wight, The primary concept behind this PE, PhD, University of Michigan. research was that the next generation Annually, EERI mails a printed of RC structures should utilize Membership Roster to its members. Coupled shear wall systems are ductile concrete in critical regions The roster enables EERI members the most commonly used seismic that are expected to experience to find and connect with other force-resisting system for moderate plastic deformations, rather than members in their fields of interest, to high-rise reinforced concrete expensive reinforcement detailing, to regional area, and around the world. (RC) structures. This presentation provide shear resistance and concrete will highlight background research confinement. This year, EERI created a new, and field applications on the use of secure, and online version of the high-performance fiber-reinforced This presentation will cover mix design EERI Membership Roster, named concrete (HPFRC) in coupling information and behavior of HPFRC, the “EERI Online Membership beams that link adjacent shear walls. observed behavior of individual Directory.” This online directory precast HPFRC coupling beams is accessible to all EERI members During large earthquake motions, subjected to large cyclic displacement and is searchable by first name, last it is anticipated that coupling reversals as well as results from tests of name, member type, discipline, beams will undergo significant state, and country.

Members will find the new EERI EERI Regional Chapter Updates Online Membership Directory. at https://www.eeri.org/cohost/ New British Columbia Chapter Washington Regional member-resources/, which requires EERI is announcing the formation Chapter Elections a membership login and password. of a new regional chapter that The Washington Regional Chapter has It is our hope that EERI members services British Columbia, Canada. elected its inaugural officers and board find this online directory both easy While a majority of the BC members. The Chapter President to use and beneficial for connecting membership resides in the Lower is David Gonzalez, Degenkolb with other experts in the EERI Mainland region of southwestern Engineers, and the chapter Secretary/ network. BC, the new British Columbia Treasurer is Pooja Jain, Moffatt & In addition, a message will be sent Chapter aims to engage other Nichol. The chapter board members to all EERI members in June with areas by offering remote access to include: David Gonzalez; Steven more information about opting in chapter meetings and encouraging Kramer, University of Washington; for the printed roster. other means of participation. Scott Miles, Western Washington EERI members Andrew Seeton, University; Greg Griffin, Buckland If you have questions about the Katherine Thibert, and Sean and Taylor Ltd.; Lynn Salvati, Jacobs new EERI Online Membership Magnusson took the lead in Associates; and Pooja Jain. Directory, email the Institute at founding the BC Chapter. [email protected].

5 EERI Newsletter, June 2013 Vol. 47, Num. 6

NEWS OF THE INSTITUTE Second Expert Elicitation Workshop

On May 8, Kishor Jaiswal of the USGS and Synergetics Inc., a lead developer of the USGS PAGER model, conducted his second expert elicitation workshop, with support from EERI, in Oakland, California.

This workshop focused on the comprehensive application of of Cooke’s method to seismic their independent assessments on Cooke’s structured elicitation vulnerability functions. The report the seismic vulnerability of pre- process in the field of seismic will also summarize workshop selected building types. vulnerability estimation, helping results and potential applications for to develop generic seismic future research. This small group of experts vulnerability functions for focused on concrete and masonry typical U.S. construction types. The First Workshop building types. The workshop The workshop results could feed The first expert elicitation workshop was considered successful — it directly into the PAGER loss was held before the 15th World generated useful data that will estimation model. Conference on Earthquake be used to refine the Global Engineering (15WCEE) in Lisbon, Earthquake Model (GEM) EERI will provide a final Portugal on September 23, 2012. Vulnerability model, as well as technical report to the USGS Selected domain experts from other seismic vulnerability models, that summarizes the workshop different parts of the world provided including the USGS PAGER model. approach, including the application

NGA-West2 Flatfile & GMPE Reports Available ANNOUNCEMENT PEER’s NGA-West2 Program, NGA-West2, are posted at http://peer. 9th International a multi-year multidisciplinary berkeley.edu/ngawest2/databases/. Masonry Conference research project, is reaching its The actual time-series records in the conclusion on various tasks, and database are being incorporated for The 9th IMC will take place in the first of its final products are now download into an updated version of Guimarães, Portugal, July 7-9, available at http://peer.berkeley.edu/ the online user-friendly PEER Ground 2014. The conference is hosted ngawest2/final-products/. Motion Database, which will be by the University of Minho and completed later in 2013. the Institute for Sustainability and The program’s products include Innovation in Structural Engineering published reports describing the Published Reports (ISISE), and co-organized with newly updated ground motion Twelve final reports from various the International Masonry Society prediction equations (GMPEs) and NGA-West2 sub-projects are now (IMS). other research studies supporting available for free download at http:// GMPE development, along with the peer.berkeley.edu/publications/peer_ Call for Papers NGA-West2 Database Flatfile. reports_complete.html. Abstracts for the 9th IMC are due by June 30, 2013. Database Flatfiles Next Steps In the tradition of openness, the The task for vertical ground motion is For more information, visit the 9th NGA-West2 database “flatfiles,” used still underway and will be completed IMC website at www.9imc.civil. in various research components of in late summer 2013. uminho.pt.

6 EERI Newsletter, June 2013 Vol. 47, Num. 6 Calendar

The issues containing the first and Advances in Structural Engineering & JULY subsequent appearances are indicat- Mechanics [ASEM13]). July 7-9 ed at the entry’s end. Items listed for http://asem.cti3.com/asem13.htm 9th Int’l Masonry Conf, Guimarães, the first time are shown in bold. (1/13) Portugal. http://www.9imc.civil.uminho.pt 2013 Sept.17-21 (4/13, 6/13) JUNE 2013 SEAOC Convention, San Diego, June 5 CA. (1/13) July 11-14 Seismic Retrofit of Masonry 7th Int’l Conf on Bridge Buildings Seminar, Vancouver, BC. Sept. 25-28 Maintenance, Safety, and http://www.seabc.ca/events (5/13) 38th DFI Annual Conference on Management (IABMAS 2014), Deep Foundations, Phoenix, Arizona. Shanghai, China. June 16–20 http://www.dfi.org/conferencedetail. http://www.iabmas2014.org (11/12) 11th Int’l Conference on Structural asp?id=226 (12/12) Safety & Reliability (ICOSSAR2013), July13-16 New York City. Sept. 26-27 2nd Int’l Conference on http://icossar2013.org/ (8/12) International Conference on Seismic Vulnerability and Risk Analysis Design of Facilities, Aachen, . JULY and Management (ICVRAM2014) www.SeDIF-Conference.de (2/13) July 13 & 6th Int’l Symposium on U.S-N.Z. Science & Risk OCTOBER Uncertainty Modeling and Analysis Communications Workshop, Oct. 25-27 (ISUMA2014), Liverpool, UK. Broomfield, CO. 2nd IACGE Int’l Conference http://www.icvram2014.org (1/13) on Geotechnical & Earthquake [email protected] (5/13) July 21-25 Engineering, Chengdu, China. AUGUST 10th Nat’l Conference on www.iacge2013.org (12/12) Aug.18-23 Earthquake Engineering, EERI 22nd Int’l Conference on Structural NOVEMBER Annual Meeting, & NEES Quake Mechanics in Reactor Technology Nov. 1-15 Summit 2014, Anchorage, Alaska. (SMiRT-22), San Francisco. PEER NGA-West2 Seminar Series, http://10ncee.org (9/12, 1/13, 2/13) Seattle, San Francisco, Long Beach, www.smirt22.org (2/12, 4/12, 10/12, AUGUST and Salt Lake City. See page 2. (6/13) 2/13) Aug. 24-29 Aug. 28-30 Nov. 8-9 Second European Conference Vienna Congress on Recent 5th Int’l Conf. on Advances in on Earthquake Engineering and Advances in Earthquake Engineering Experimental Structural Engineering Seismology, Istanbul, Turkey. http:// and Structural Dynamics (5AESE), Taipei, Taiwan. www.2eceesistanbul.org/ (2/13) (VEESD2013), Vienna, Austria. http://aese5.ncree.narl.org.tw (11/12) NOVEMBER http://veesd2013.conf.tuwien.ac.at 2014 Nov. 16-19 (8/12) APRIL 3rd International Symposium SEPTEMBER April 30-May 2 on Life-Cycle Civil Engineering Sept. 5-7 Annual Meeting, Seismological Society (IALCCE), Tokyo, Japan. 4th EUGEO Congress, Rome, . of America, Anchorage, Alaska. http://www.ialcce2014.org (11/12) www.eugeo2013.com (3/13) http://www.seismosoc.org/meetings/ (7/12) Sept. 8-12 Int’l Conference on Earthquakes & Structures (ΙCEAS-2013), Jeju, Korea (part of the World Congress on

7 EERI Newsletter, June 2013 Vol. 47, Num. 6

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EERI Newsletter, June 2013 Vol. 47, Num. 6

NEWS OF THE INSTITUTE EERI’s First Arts & Letters Webinar Newest EERI Staff On May 21, Bob Reitherman, As a professional novelist and an My Davidson has joined the EERI executive director of CUREE, earthquake engineering expert, staff as Membership and Commu- interviewed Michel Bruneau, Bruneau offers insights into his nications Manager. She will develop professor and structural engineer, fascination with the bridges in and implement the membership about his novel, Shaken Allegiances, Quebec as a young child, his academic and communications strategies that in the first webinar in the new EERI transition from studying architecture respond to organizational priorities. Arts and to engineering, his fiction writing My is looking forward to learning Letters process, and more. Bruneau’s novel more about the work of the Institute series. and interview will interest both the and how to support its members — general reader and the seismically experts in the multidisciplinary fields Bruneau’s astute members of EERI. of earthquake engineering. Shaken Allegiances EERI members may listen to a Prior to coming to EERI, she was spans the recording of the interview in the Communications Project Manager at fictional 48 Members Only Resources area at the National Writing Project, based at hours after https://www.eeri.org/cohost/member- the University of California, Berkeley, a magnitude resources/. Non-members will be able where she developed, over 12 years, 7 earthquake that has struck to access the recording for a nominal the progressive strategies that deliver Montréal in winter. The tremendous fee at the Institute’s Knowledge Center communications, marketing cam- damage caused by such a large at https://www.eeri.org/products-page/ paigns, and public relations content earthquake centered directly under arts-letters/. If you have questions for the organization. My earned a a major metropolitan area provides about the first webinar in the EERI bachelor’s degree at UC Berkeley and the milieu for the novel. Arts and Letters series, email the a master’s degree at Boston University. Institute at [email protected].

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