2026-09-11T15:59:46-07:00 2026-01-31 204994635 Iryna AC 1000 Broadway Ste 200-C Oakland CA 94607 990 2025-02-01 946078791 Seismological Society of America SEIS 5105255474 400 Evelyn Ave Ste 201 Albany CA 94706 Nan Broadbent Executive Director 2026-09-10 true Kostyantyn Oreshkov EA P00923916 5104679506 2025 Nan Broadbent 400 Evelyn Ave Ste 201 Albany CA 947061375 3704560 false X www.seismosoc.org X 1906 CA The Seismological Society of America (SSA) is an international scientific society devoted to the advancement of seismology and the understanding of earthquakes for the benefit of society 13 13 7 800 0 319503 393100 3032026 3110347 192242 201113 0 3543771 3704560 101477 125728 0 948720 1115815 0 29610 2393143 2271537 3443340 3513080 100431 191480 7356593 8289580 1038446 1024398 6318147 7265182 The Seismological Society of America (SSA) is an international scientific society devoted to the advancement of seismology and the understanding of earthquakes for the benefit of society false false 2988889 125728 3110347 SSA published three journals and organized two international meetings. The Society serves more than 2500 seismologists from around the world, providing workshops, training, mentoring, more than 40 travel grants and other such services, as well as producing the journals and conferences. 2988889 true true false false false false false false false true true false false false true true true false false false true true true false false false false false true true false false false false false false false false false false false false false false false false false true 29 0 true 7 true false false false false false false false 0 false false false false false false false X 13 13 false false false false true true true true true false false true true true true true true true true false CA X X Jill Skinner 5105255474 400 Evelyn Ave Ste 201 Albany CA 94706 Nan Broadbent Executive Dir. 40.00 0.00 X 321966 0 30475 Andria Marcus Meetings Director 40.00 0.00 135966 0 23470 Katie Duffy Publication Dir. 40.00 0.00 130316 0 740 Monica Lu Membership officer 40.00 0.00 101608 0 17436 Susan Bilek President 4.00 0.00 X X 0 0 0 Heather DeShon Past President 2.00 0.00 X X 0 0 0 Jake Walter Treasurer 1.00 0.00 X X 0 0 0 Kris Pankow Secretary 1.00 0.00 X X 0 0 0 Zhigang Peng President-elect 1.00 0.00 X X 0 0 0 Annemarie Baltay Board Member 1.00 0.00 X 0 0 0 Jackie Caplan-Auerbach Board Member 1.00 0.00 X 0 0 0 Carl Tape Board Member 1.00 0.00 X 0 0 0 Roby Douilly Board Member 1.00 0.00 X 0 0 0 Ashly Cabas Board Member 1.00 0.00 X 0 0 0 Victor Huerfano Board Member 1.00 0.00 X 0 0 0 Ivan Wong Board Member 1.00 0.00 X 0 0 0 Andreas Fichtner Board Member 1.00 0.00 X 0 0 0 Aaron Velasco Board Member 0.10 0.00 X 0 0 0 Diego Melgar Board Member 0.25 0.00 X 0 0 0 Ruth Harris Past President 0.25 0.00 X X 0 0 0 689856 72121 4 false true false Lumina Datamatics 600 Cordwainer Dr Unit 103 Norwell MA 02061 Composition 259669 Hilton Baltimore Inner Harbor 401 West Pratt St Baltimore MD 21201 Hospitality 238608 Projection 5803 Rolling Road 200 Springfield VA 22152 AV Conference Services 124094 Delta Think Inc 600 Arlingham Road Flourtown PA 19031 Publishing Services 130550 John Wiley & Sons Inc 111 River St Hoboken NJ 07030 Editorial Services 113477 5 230536 162564 393100 MEETINGS 813920 668833 668833 Publication Charges 511120 2441514 2441514 3110347 201113 201113 0 0 0 0 0 0 0 0 3704560 3110347 201113 5000 5000 57877 57877 62851 62851 0 352441 229087 105732 17622 0 619060 552421 60812 5827 39672 36732 2790 150 39266 32022 6369 875 65376 52918 10935 1523 0 47104 47104 100310 100310 0 0 40116 40116 70624 62296 7531 797 181934 181934 182418 103760 78261 397 23853 19307 3990 556 0 57828 46808 9673 1347 0 0 778162 760283 17792 87 74 74 0 3747 3033 627 87 12455 10081 2084 290 Publication Cost 734641 734641 Awards 19665 19665 Dues, Fees & Other Charges 9979 9546 381 52 Bad debts expense 4980 4980 3647 3647 3513080 2988889 494581 29610 155922 269569 624643 565051 0 109697 108093 0 0 0 0 93160 65233 152537 147812 5240 4725 6124664 7083997 0 0 0 243267 192912 7356593 8289580 183007 154374 612172 677112 243267 192912 1038446 1024398 X 5548397 6380886 769750 884296 6318147 7265182 7356593 8289580 191480 755555 X false true X true false X 1953714 268833 371049 319503 393100 3306199 2456627 2607248 2817588 3032026 3110347 14023836 0 0 0 4410341 2876081 3188637 3351529 3503447 17330035 0 0 17330035 138031 153438 174026 192242 201113 858850 0 138031 153438 174026 192242 201113 858850 0 0 4548372 3029519 3362663 3543771 3704560 18188885 0.95280 0.95770 0.04720 0.04230 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED 2913783 91022 467373 19278 3452900 2391816 229876 309907 17816 2913783 1880303 356230 170357 15074 2391816 1773766 220821 -102105 12179 1880303 1812916 -33238 5912 1773766 1.00000 false false false 149600 144875 4725 2937 2937 4725 Operating lease liabilities 192912 192912 X 4419999 755555 755555 3664444 40116 40116 3704560 3472964 3472964 40116 40116 3513080 Part V, Line 4: Intended uses of the endowment fund. The Organization has adopted investment policies for board designated endowment funds that attempt to provide a stable stream of income with a short to medium time horizon by investing principally in cash and fixed income securities or to provide a higher return with a long-time horizon by investing in a mix of fixed income securities and equities, depending upon the specific purpose for board designated endowment fund.The Organization has adopted a spending policy for the fund designated by the board of directors to function as endowment. After the fund reaches at least $3 million, the board can authorize expenditures equal to 5% of the average investment value. The board of directors has ultimate discretion over annual appropriations.Funds designated by the board of directors to function as endowment are subject to redesignation at any time, including designation other than endowment funds. Part X : FIN48 Footnote The Organization is not classified as a private foundation and is exempt from federal and state income taxes under section 501(c)(3) of the Internal Revenue Code and Section 23701(d) of the California Code. The Organization is considered a publicly supported organization. Management has evaluated its uncertain tax positions and related income tax contingencies and does not believe any material uncertain tax positions exist. true East Asia & Pacific 0 0 Grantmaking 18376 Europe 0 0 Grantmaking 13440 North America 0 0 Grantmaking 17793 South America 0 0 Grantmaking 2000 South Asia 0 0 Grantmaking 675 Sub-Saharan Africa 0 0 Grantmaking 10567 62851 62851 East Asia & Pac advancing seismol. 10000 Wire North America advancing seismol. 15000 Wire 2 AES Travel Grant South America 1 2000 Wire AES Travel Grant South Asia 1 675 Wire Annual Meeting Travel Grant East Asia & Pacific 2 4900 Wire 1186 registration fee book Annual Meeting Travel Grant Europe 3 6000 Wire 2475 registration fee book Annual Meeting Travel Grant North America 1 2200 Wire 593 registration fee book Annual Meeting Travel Grant Sub-Saharan Africa 2 4500 Wire 1067 registration fee book Community Grant Sub-Saharan Africa 1 5000 Wire Global Travel Grant East Asia & Pacific 1 2290 Wire Global Travel Grant Europe 2 4965 wire false false false false false false Part I, Line 2 - Grantmakers Explanation For Monitoring Use of Funds Outside US For Community Grants, we require the recipient to provide a detailed budget and two-paragraph summary of the event. For travel grants, recipients provide evidence of attending the event. false 0 0 Spudich Travel Grants 2 4590 Annual Meeting Travel Grants 14 19750 6874 book registration fee waived Topical Meeting Travel Grants 2 3000 1050 book registration fee waived Gov. Relations Travel Grants 1 1500 593 book registration fee waived Global Travel Grants 4 8020 Community Grants 1 5000 AES 2026 Meeting Travel Grants 4 7500 X X X false false false false false false false false false Andria Marcus Meetings Director 135966 12237 11233 159436 Nan Broadbent Executive Dir. 321966 28977 1498 352441 Form 990, Part VI, Section A, Line 6 The Organization is composed of members who pay a membership fee. Form 990, Part VI, Section A, Line 7a The Organization is composed of members who vote to elect Directors annually. Form 990, Part VI, Section A, Line 7b the membership is required to approve certain governance actions, such as creating terms for the two appointment positions. Form 990, Part VI, Section B, Line 11b The Board and finance team reviews the documents, and comments are collected, reviewed and sent to the auditor. Form 990, Part VI, Section B, Line 12c We ask the members of the board of directors (annually) and editorial board members (every three years) to complete a form that identifies any conflicts of interest. Form 990, Part VI, Section B, Line 15a The management committee determines compensation. Form 990, Part VI, Section B, Line 15b The consultant benchmarked the performance and tenure of each person, providing compensation range, against similar positions, adjusting for the California market. Form 990, Part VI, Section C, Line 19 Our Bylaws are posted in the public area of our website. Our audited financial statements are published annually in our journal, Seismological Research Letters (SRL). Minutes of our annual Board of Directors meeting are published in SRL as well. Our Board policies, including the Conflict of Interest Policy, are posted in the leadership section of our website as are minutes of Board conference calls, key committees, etc. Our Form 990 is available by request.