Lora Harris, University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States, Corey Garza, California State University Monterey Bay, Marine Science, Seaside, CA, United States, Julie Posselt, University of Southern California, Los Angeles, United States, Julia Parrish, Univ of Washington, Seattle, WA, United States and Marco Hatch, Western Washington University, Bellingham, United States

Genevieve Rigler¹, Zoi Dokou², Fahad Khan Khadim¹, Wangchi Zhou³, Teshome Lemma Yami⁴, Mamaru Moges⁵, Seifu Admassu Tilahun⁶, Muluken Azage⁵, Xingyu Wang⁷, Baikun Li⁸, Amvrossios C Bagtzoglou⁷, Yang Hong⁹, Elizabeth Holzer¹⁰, Emmanouil N Anagnostou⁷ and Mamaru Moges, (1)University of Connecticut, Civil and Environmental Engineering, Groton, CT, United States, (2)California State University Sacramento, Civil Engineering, Sacramento, CA, United States, (3)University of Connecticut, Civil and Environmental Engineering, Storrs, United States, (4)University of Oklahoma Norman Campus, Norman, OK, United States, (5)Bahir Dar University, Bahir Dar, Ethiopia, (6)Associate professor, Civil and Water Resources Engineering Faculity, Bahir Dar, Ethiopia, (7)University of Connecticut, Civil and Environmental Engineering, Storrs, CT, United States, (8)University of Connecticut, Storrs, CT, United States, (9)School of Civil Engineering and Environmental Sciences, University of Oklahoma, Norman, OK, United States, (10)University of Connecticut, Department of Sociology, Storrs, CT, United States

Elisabeth Levac, Bishop's University, Sherbrooke, QC, Canada and Bruno Courtemanche, Bishop's University, Environment and Geography, Sherbrooke, QC, Canada

Elizabeth Frantz, Green Local Schools, Smithville, OH, United States

Melina Macouin¹, Sonia Rousse², Jean-François Leon³, Sandrine Suchon¹, Fabrice Gangneron¹, Sinda Haoues-Jouve⁴, Marc Respaud⁵, Eva Schreck¹, Loïc Drigo¹ and Sylvia Becerra¹, (1)GET Géosciences Environnement Toulouse, Toulouse, France, (2)GET, Géosciences Environnement Toulouse, Toulouse, France, (3)CNRS, Paris Cedex 16, France, (4)Université Jean Jaures, Toulouse, France, (5)CEMES, Toulouse, France

Chisato Calvert, OpenAQ, Washington, DC, United States and Sruti Modekurty, openAQ, Washington, DC, United States

Kathleen M Smits, University of Texas at Arlington, Arlington, TX, United States, Jose R Velasquez, The University of Texas at Arlington, Civil Engineering, Arlington, United States, Laura Phipps, The University of Texas at Arlington, Public Health, Arlington, United States and Oscar Jaime Restrepo Baena, Universidad Nacional de Colombia, Facultad de Minas, Medellin, Colombia

Tamlin Pavelsky¹, Sarina Little¹, Faisal Hossain², Sheikh K Ghafoor³, Grant Parkins¹, Sarah Yelton¹, Catherine Hein⁴, Jean-François Crétaux⁵, Simon Topp¹, Xiao Yang¹, Debolina Halder Lina³ and Megan Elizabeth Rodgers¹, (1)University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, (2)University of Washington, Seattle, WA, USA, Seattle, United States, (3)Tennessee Technological University, Cookeville, TN, United States, (4)Wisconsin Department of Natural Resources, Madison, WI, United States, (5)Centre National d'Études Spatiales (CNES), Laboratoire d'Études en Géophysique et Océanographie Spatiales (LEGOS), Toulouse, France

Dhiraj Saharia, Tezpur University, Computer Science and Engineering, Tezpur, India, Satyakam Singhal, Indian Institute of Technology Delhi, Department of Biotechnology, New Delhi, India, Avish Jain, Indian Institute of Technology Delhi, Civil Engineering, New Delhi, India, Manabendra Saharia, Indian Institute of Technology Delhi, Department of Civil Engineering, New Delhi, India and Milan Kalas, KAJO, s.r.o., Bytca, Slovakia

Jeffrey Colin Davids¹, Brandon Ertis², Rajaram Prajapati³, Surabhi Upadhyay³, Shoaib Saboory⁴, Tin Tin Htwe⁵ and Martine Rutten⁶, (1)California State University Chico, Chico, CA, United States, (2)SmartPhones4Water, Chico, United States, (3)Smartphones For Water Nepal, Lalitpur, Nepal, (4)SmartPhones4Water, Kabul, Afghanistan, (5)Mandalay Technical University, Civil Engineering, Mandalay, Myanmar, (6)Delft University of Technology, Delft, Netherlands

Robin B Kodner, Western Washington University, Bellingham, WA, United States

Meghan Collins, Desert Research Institute Reno, Reno, NV, United States, Monica M Arienzo, RSMAS, Miami, FL, United States and Keith Steven Jennings, University of Nevada, Reno, Reno, NV, United States

Jessica Abbie Abbie Eisma, University of Texas at Arlington, Civil Engineering, Arlington, TX, United States, Gerrit Schoups, Delft University of Technology, Delft, Netherlands, Jeffrey C. Davids, California State University Chico, Chico, CA, United States and Nick Van De Giesen, Delft University of Technology, Faculty of Civil Engineering and Geosciences, Delft, Netherlands

Colleen Flanagan Pritz, National Park Service Lakewood, Lakewood, CO, United States, Collin Eagles-Smith, USGS Forest and Rangeland Ecosystem Science Center, Corvallis, United States, James Willacker, USGS Forest and Rangeland Ecosystem Science Center, Corvallis, OR, United States, Sarah J. Nelson, University of Maine, Orono, ME, United States, David P Krabbenhoft, USGS Upper Midwest Water Science Center, Middleton, WI, United States, Celia Chen, Dartmouth College, Hanover, NH, United States, Joshua T. Ackerman, USGS California Water Science Center Sacramento, Sacramento, CA, United States, Evan H Campbell Grant, US Geological Survey, Turners Falls, MA, United States and David Pilliod, USGS, Boise, ID, United States

Sarick L Matzen^1,2, Joshua Earl Arnold², Roger Brewer³, Rob Bennaton⁴, Jennifer Sowerwine² and Céline E Pallud², (1)University of Minnesota Twin Cities, Minneapolis, MN, United States, (2)University of California Berkeley, Berkeley, CA, United States, (3)Hawai'i Department of Health, Honolulu, HI, United States, (4)University of California Cooperative Extension – Alameda County, Hayward, United States

Cora Siebert¹, Aaron Benjamin Jacobs², Benjamin Crane Johnson³, Sara D Turner⁴, Annette Patton⁵, Josh J Roering⁶, Ryan Brown⁷, Lisa Busch¹, Robert J Lempert⁴ and Max Izenberg⁸, (1)Sitka Sound Science Center, Sitka, AK, United States, (2)NOAA, NWS Juneau Forecast Office, Juneau, AK, United States, (3)NOAA National Weather Service Alaska-Pacific River Forecast Center, Anchorage, AK, United States, (4)RAND Corporation, Santa Monica, CA, United States, (5)University of Oregon, Department of Earth Sciences, Eugene, United States, (6)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (7)RAND Corporation, Napa, United States, (8)RAND Corporation Santa Monica, Santa Monica, United States

Ignacio Sepulveda, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, Matias Carvajal, University of Concepcion, Concepcion, Chile, Jennifer S Haase, UCSD, La Jolla, CA, United States, Philip L-F. Liu, National University of Singapore, Department of Civil and Environmental Engineering, Singapore, Singapore, Xiaohua Xu, Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, CA, United States, Cristian Araya-Cornejo, Pontificia Universidad Católica de Chile, Doctorado en Geografía, Instituto de Geografía, Santiago, Chile and Daniel Melnick, Universidad Austral, Instituto de Ciencias de la Tierra, Capital Federal, Argentina

Yasuyuki Kano, Earthquake Research Institute, University of Tokyo, Tokyo, Japan, Yuta Hashimoto, National Museum of Japanese History, Sakura, Japan, Ichiro Nakanishi, Kyoto University, Kyoto, Japan and Research Group for Historical Earthquakes, Kyoto University