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--></style></head><body bgcolor=white lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt'>Dear colleagues,</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal><i><span style='font-size:11.0pt'>[apologies for multiple postings; we’ve distributed this note to the 150 members of shake-dev@usgs.gov (150 members) and others. Feel free to forward to your colleagues]</span></i><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'>We invite you to contribute an Abstract to the 2018 SSA meeting (May, in Miami) special session on <b><i>ShakeMap-Related Research, Development, Operations and Applications*.</i></b> The USGS ShakeMap team will also host a <b><i>ShakeMap Workshop</i></b>** on Friday, 18 May, the day following the SSA meeting. The workshop is aimed at ShakeMap operators, researchers & core users & will focus on the science & software underpinning ShakeMap Version 4, a major re-engineering of the entire ShakeMap system. </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'>If you plan to contribute a related Abstract, please do so directly to SSA, as usual (due <b>Jan 24<sup>th</sup></b>). When you <i>register for the SSA meeting </i>you will be able to also sign up for the Workshop. However, if you plan to attend the Workshop, feel free to let us know directly; it will help us better organize our workshop & resources.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'>Regards,</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'>David Wald, Bruce Worden, & Eric Thompson, USGS, Golden, CO</span><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:11.0pt'> </span></b><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:11.0pt'> </span></b><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:11.0pt'>* <a href="https://seismology2018.org/sessions/">ShakeMap-Related Research, Development, Operations and Applications</a></span></b><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'>ShakeMap Version 4 represents a major re-engineering of the entire ShakeMap software package, including the way ground-motion parameters are interpolated, both geospatially and as a function of frequency. The new multivariate-normal interpolation strategy naturally accommodates uncertain intensity as well as ground-motion parameters, along with the correlations between the different parameters. While this new software and capabilities add important new functionality, they require (among other gaps) additional R&D on ground motion & intensity models, duration/intensity models, model selection & spatial cross correlations. Thus, this session explores current research in the modeling & validation of ground motion & intensity relations as well as new or emerging efforts to improve ground motion prediction, site amplification & geospatial analyses (along with uncertainties) pertinent to ShakeMap. Presentations on new ShakeMap products, formats & web-rendering are also encouraged.</span><o:p></o:p></p><p class=MsoNormal><i><span style='font-size:11.0pt'>Session Conveners</span></i><span style='font-size:11.0pt'>: David J. Wald, U.S. Geological Survey, <a href="mailto:wald@usgs.gov">wald@usgs.gov</a>, Eric M. Thompson, U.S. Geological Survey, <a href="mailto:emthompson@usgs.gov">emthompson@usgs.gov</a>, Charles B. Worden, U.S. Geological Survey, <cbworden@usgs.gov></span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:11.0pt'>** <a href="https://seismology2018.org/workshops/">ShakeMap Post-Meeting Workshop</a></span></b><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:11.0pt'>Time: Friday, 18 May 2018, 8:30 AM – 5:00 PM. </span></b><span style='font-size:11.0pt'>There will be an optional social hour & dinner Friday evening. The workshop is free to attendees, but RSVP is recommended as space is limited. Time will be set aside for discussion, feedback, strategizing & operations questions. Workshop attendees are also encouraged so share their ShakeMap-related examples, research, operations & needs during the SSA meeting at a related Special Session: ShakeMap-Related Research, Development, Operations & Applications.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><o:p></o:p></p></div></body></html>