Ludwin, R.S., C.S. Weaver, and R.S. Crosson, 1991, Seismicity of Washington and Oregon in Neotectonics of North America, D.B. Slemmons, E.R. Engdahl, D. Blackwell and D. Schwartz, editors, Geol. Soc. Am., CSMV-1
Ludwin, R.S., V. Cagnetti, and C.G. Bufe, 1982, Comparison of seismicity in The Geysers geothermal area with the surrounding region, BSSA, V. 72(3), pp. 863-871.
Ludwin as co-author (ordered alphabetically)
Bakun, W.H., R.A. Haugerud, M.G. Hopper, and R.S. Ludwin, 2002, The December 1872 Washington State Earthquake, Bulletin of the Seismological Society of America, Vol. 92, No. 8, pp. 3239-3252
Brocher, T.M, C.S. Weaver, R.S. Ludwin, 2003 (in press), Assessing hypocentral accuracy and lower magnitude completeness in the Pacific Northwest using seismic refreaction detonations and cumulative frequency-magnitude relationships, Seis. Res. Lett., V. 74, No. 6, pp. 772-788.
Benson, R, C.D. Lindholm, R. Ludwin, and A. Qamar, 1992, A method for identifying explosions contaminating earthquake catalogs: application to the Washington Regional Earthquake Catalog, Seis. Res. Lett., Vol. 63, No. 4, pp. 533-539.
Bufe, C.G., Marks, S.M., Lester, F.W., Ludwin, R.S. and Stickney, M.C., 1980, Seismicity of the Geysers-Clear Lake geothermal area, California, in McLaughlin, R.J. and Donnelly-Nolan, J.M.,eds. Research in the Geysers-Clear Lake geothermal area: U. S. Geological Survey Professional Paper 1141
Ma, L., R.S. Crosson, and R.S. Ludwin, 1996, Focal Mechanisms of western Washington earthquakes and their relationship to regional tectonic stress, in: Volume 1, USGS Professional Paper 1560 "Assessing Earthquake Hazards and Reducing Risk in the Pacific Northwest", p. 257-284.
McCrumb, D.R., R.W. Galster, R.S. Crosson, R.S. Ludwin, D.O. West, W.E. Hancock, and L.V. Mann, 1989, Tectonics, Seismicity, and Engineering Seismology in Washington, in Engineering Geology in Washington, Vol. II, Washington Div. of Geol. and Earth Resources, Bull. 78, pp. 97-121.
Qamar, A. I., S. D. Malone, and R. S. Ludwin, 1997, Rapid earthquake notification in the Pacific Northwest, Washington Geology, Washington Geology, vol
25, no 4, pp 33-36.
Partial List of Published Reports:
Ludwin, R.S., 1992, Earthquake depth resolution in western Norway and
the northern North Sea, Seismo-series No. 57, Institute of Solid Earth Physics, Seismological Observatory, University of Bergen, Norway
Ludwin, R.S., 1989, Earthquake Occurrence and Hazards in Washington and Oregon,
in
Proceedings of Conference XLVIII 3rd annual workshop on earthquake hazards in the Puget Sound/Portland Area; March 28-30 1989, USGS Open-File Report 89-465, pp. 128-140.
Ludwin, R.S., A.I. Qamar, S.D. Malone, C. Jonientz-Trisler, R.S. Crosson, R. Benson, and S. Moran, 1994, Earthquake Hypocenters in Washington and Northern Oregon, 1987-1989 and the Washington Regional Seismograph Network; Operations and Data Processing, Washington State Dept. of Natural Resources, Information Circular 89, 40 p.
PNSN Staff, 2001, Preliminary Report on the Mw=6.8 Nisqually, Washington earthquake of 28 February 2001, 2001, Seis. Res. Lett., V. 72, N. 3, pp. 352-361.
Partial List of Abstracts and extended abstracts (since 1987):
Ludwin as first author (in date order, most recent first)
Ludwin, R.S. and A. Colorado, 2005,Tsunamis and Whirlpools; Representation in Art and Myth, NSF WORKSHOP ON TSUNAMI DEPOSITS, University of Washington, 12-15 JUNE 2005.
Ludwin, R.S., K. James, C. Jonientz-Trisler, J. Pickens, M. Skaret, K. Troost, 2003, Water-serpent myths of Puget Sound Natives may refer to the A.D. 900 Seattle earthquake, GSA Geoscience Horizons, Seattle 2003, Abstracts with Programs, p. 80.
Ludwin, R.S., 2001, Searching for Native Stories about Cascadia Subduction Zone Earthquakes, Seismological Society of America 2001 Annual Meeting, Seis. Res. Lett. V. 72, No. 2, p. 270
Ludwin, R.S., 2001 (extended abstract), Earthquake Prediction, Washington Geology, Vol. 28, No. 3, May 2001, p. 27.
Ludwin, R.S., R.W. Ellsbury, and A.I. Qamar, 1992, The Electronic Scrapbook and Cardfile; using original accounts of historical earthquakes and a PC database to improve and correct seismicity catalogs, Seis. Res. Lett., V. 63(1), p. 66.
Ludwin, R.S., and A.I. Qamar, 1991 (extended abstract), 1882 earthquake rediscovered, Washington Geology, V. 19(2), p. 12-13.
Ludwin, R.S., and A.I. Qamar, 1991, Reevaluation of the 19th Century Washington and Oregon earthquake catalog using original accounts: The moderate sized earthquake of May 1, 1882, Seis. Res. Lett., V. 62(1), p. 52.
Ludwin, R.S. and A.I. Qamar, 1996, A new database catalog of historic earthquakes in the Cascadia Region, The Geological Society of America, 92nd annual meeting, 1996 Abstracts with Programs. p. 86.
Ludwin, R.S., C.S. Weaver and R.D. Catchings, 1989, Apparent structural relations between crustal earthquakes and continental rifting in the Columbia Plateau, Washington, Seis. Res. Lett., V. 60(1), p. 29.
Ludwin as co-author (ordered alphabetically)
Bakun, W.H. and R.S. Ludwin, 2001, Significant Historical Puget Sound Earthquakes, Seismological Society of America 2001 Annual Meeting,
Special Session on the Nisqually Earthquake, V. 72, No. 3, p. 392
Bakun, W.H., R.A. Haugerud, M.G. Hopper, and R.S. Ludwin, 2001 (abstract), The December 1872 Washington State Earthquake, Seismological Society of
America 2001 Annual Meeting, Seis. Res. Lett. V. 72, No. 2, p. 269
Blakely, R.J., R.E. Wells, C.S. Weaver, K.L. Meagher, R. Ludwin, 2002, The bump and grind of Cascadia forearc blocks; evidence from gravity and magnetic anomalies, In: Geological Society of America, Cordilleran Section, 98th annual meeting, Abstracts with Programs - Geological Society of America. 34; 5, Pages 33.
Crosson, R.S. and R.S. Ludwin, 1992 (Invited), Cascadia Subduction Zone: Constraints on slab structure from seismic observations, GSA 88th Annual Cordilleran Section, 1992 Abstracts with Programs, V. 24(5), p. 18
Crosson, R.S., K.C. Creager, S. Malone, G. Thomas, R. Ludwin, A. Qamar, 2001 (abstract), The Magnitude 6.8 Nisqually Earthquake of February 28, 2001: Seismological Aspects, Seismological Society of America 2001 Annual Meeting, Special Session on the Nisqually Earthquake, V. 72, No. 3, p. 394
Johnson, T.E., R.S. Ludwin, A.I. Qamar, and R.W. Ellsbury, 1991, Historical earthquake database for events in Washington, Oregon and southern British Columbia prior to 1928, EOS, V. 72(44), p. 604.
Johnson, T.E., R.S. Ludwin, and A.I. Qamar, 1992 (extended abstract), The Central Cascades earthquake of March 7, 1891, Washington Geology, V. 20(1), pp. 36-38.
Ma, Li, and R.S. Ludwin, 1987, Can Focal Mechanisms be used to Separate Subduction Zone from Intra-plate Earthquakes in Washington?, EOS, V. 68, No. 3.
Qamar, A.I., R.B. Benson, and R.S. Ludwin, 1991, Recent Seismicity in the Pacific Northwest since 1986, EOS, V. 72(44), p. 603.
Qamar, A.I. and R.S. Ludwin, 1992, Stress directions in Washington and Northern Oregon inferred from earthquake focal mechanisms, Seis. Res. Lett., V. 63, No. 1 p. 28 (also in GSA 88th Annual Cordilleran Section, 1992 Abstracts with Programs, V. 24(5)).
UW /
Dept of Earth and Space Sciences /
PNSN