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The USGS Volcano Hazards Program office is located in Reston, Virginia. Staff from each of the five U.S. Volcano Observatories and the Volcano Disaster Assistance Program work to accomplish the objectives of the Program office. 

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U.S. Volcano Observatories

For regional questions, contact one of the five U.S. volcano observatories below. For general questions about volcanoes in the U.S. or about website issues, contact vhpweb@usgs.gov.

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Employee Directory

Job Title
Name
Email
Phone
Volcanologist Nathan Andersen nandersen@usgs.gov 360-993-8900
Scientist Emeritus Victoria F. Avery vavery@usgs.gov
Data Scientist Marco Bagnardi, Ph.D. mbagnardi@usgs.gov
Geographer Joseph A. Bard jbard@usgs.gov 360-993-8908
Research Social Scientist Beth A. Bartel bbartel@usgs.gov
Volcano Seismologist Ninfa L. Bennington, Ph.D. nbennington@usgs.gov 808-967-8803
Geologist (NAGT) Emily Bryant ebryant@usgs.gov 360-993-8992
Scientist-in-Charge Andrew Todd Calvert, Ph.D. acalvert@usgs.gov 650-329-5276
Geophysicist Jefferson C Chang, Ph.D. jchang@usgs.gov 808-967-8818
Hydrologic Technician Tami S Christianson tchristianson@usgs.gov 360-993-8945
Gas Geochemist Laura Clor lclor@usgs.gov 360-993-8993
Research Geologist, Alaska Volcano Observatory Michelle L. Coombs, Ph.D. mcoombs@usgs.gov 907-786-7403
Geophysicist Amberlee P. Darold adarold@usgs.gov 360-993-8924
Senior Management Officer Josie Davidson jdavidson@usgs.gov 703-648-5436
Research Geophysicist Chanel Deane cdeane@usgs.gov
Volcanologist Natalia Irma Deligne ndeligne@usgs.gov
Research Geophysicist Roger Patrick Denlinger, Ph.D. roger@usgs.gov 360-993-8904
Volcanologist - VDAP Angie Diefenbach adiefenbach@usgs.gov 360-993-8957
Volcanologist Hannah R. Dietterich, Ph.D. hdietterich@usgs.gov 907-786-7474
Volcanologist Drew T. Downs ddowns@usgs.gov 808-967-7328
Emeritus/USGS-CVO Outreach Coordinator (1995-2022) Carolyn Driedger cmastin@usgs.gov
Geophysicist: Geodetic Network Manager Andria (Andi) P. Ellis apellis@usgs.gov 808-967-7328
Research Geophysicist Ashton F. Flinders, Ph.D. aflinders@usgs.gov 808-967-8825
Research Mathematician David L George, Ph.D. dgeorge@usgs.gov 360-993-8932
Geologist, IT Systems Administration Scott E. Graham sgraham@usgs.gov 360-993-8965
Volcanologist - VDAP Julia Griswold griswold@usgs.gov 360-993-8949
Scientist-in-Charge Matt M. Haney mhaney@usgs.gov 907-786-7111
Volcano Stratigrapher Christopher Harpel
Scientist-in-Charge Ken Hon, Ph.D. khon@usgs.gov 808-967-8853
Administrative Operations Assistant Anthony C. Isham 360-993-8962
Research Hydrologist Emeritus Richard M. Iverson riverson@usgs.gov 360-993-8920
Management Analyst Sara Jivanjee
Research Geophysicist Ingrid A. Johanson ijohanson@usgs.gov 808-967-8838
Volcanologist Emily R. Johnson, PhD erjohnson@usgs.gov 360-993-8972
Research Geophysicist Arthur Jolly ajolly@usgs.gov
Gas Geochemist Peter Kelly pkelly@usgs.gov 360-993-8950
Research Physicist Christoph Kern ckern@usgs.gov 360-993-8922
Geophysicist Rebecca L. Kramer rkramer@usgs.gov 360-993-8930
Geologist Hannah Kruse hkruse@usgs.gov 360-993-8900
Geophysicist Martin LaFevers 360-993-8902
Volcanic Geochemist Allan Lerner alerner@usgs.gov
Research Geologist Matthew Loewen mloewen@usgs.gov 907-786-7036
Director, Volcano Disaster Assistance Program Jacob B. Lowenstern jlwnstrn@usgs.gov 360-993-8946
Petrologist Jordan Lubbers jlubbers@usgs.gov 907-786-7118
Volcanologist - Petrologist Kendra J. Lynn, Ph.D. klynn@usgs.gov 808-967-8844
Volcano Geophysicist John Lyons jlyons@usgs.gov 907-786-7422
Scientist-in-Charge Jon Major jjmajor@usgs.gov 360-993-8927
Research Volcanologist Charles W. Mandeville cmandeville@usgs.gov 571-286-2304
Geologist - USGS/Affiliated Volcanologist - Global Volcanism Program, Smithsonian Institution JoAnna G. Marlow jmarlow@usgs.gov
Associate Director, VDAP Jeffery Marso 360-993-8928
Physical Volcanologist Larry G. Mastin, Ph.D. lgmastin@usgs.gov 360-993-8925
Volcano Hazards Program Coordinator Gari Mayberry gmayberry@usgs.gov
Volcano Seismologist Wendy McCausland wmccausland@usgs.gov 360-993-8985
Operational Geophysicist Megan McLay mmclay@usgs.gov 360-993-8994
Physical Science Technician Robert Mertens 360-993-8973
Field Engineer Brian Meyers
Facility Operations Manager William J. Million wmillion@usgs.gov 808-967-8872
Research Geophysicist Michael Albert Mitchell, Ph.D. mamitchell@usgs.gov 650-329-5083
Research Geophysicist, Volcano Geodesist Emily Montgomery-Brown emontgomery-brown@usgs.gov 650-329-5227
Volcano Seismologist Seth Moran, Ph.D. smoran@usgs.gov 360-993-0925
Geologist Adam R. Mosbrucker amosbrucker@usgs.gov 360-993-8975
Volcanologist Patricia A. Nadeau pnadeau@usgs.gov 808-967-7328
Volcanologist Emeritus Manuel Nathenson mnathnsn@usgs.gov 650-329-5292
Science Center Director Christina A. Neal tneal@usgs.gov 907-786-7458
Hydrogeochemist Emeritus D. Kirk Nordstrom dkn@usgs.gov 303-541-3037
Volcanologist Sarah E. Ogburn, PhD (she/her/hers) sogburn@usgs.gov 360-993-8983
Information Technology Specialist Charles T. Olin ctolin@usgs.gov 907-786-7072
Volcanologist Tim R. Orr torr@usgs.gov 907-786-7046
Mendenhall Postdoctoral Fellow Tyler G Paladino, Ph.D. tpaladino@usgs.gov
Administrative Operations Assistant Jonathan Parrish jparrish@usgs.gov 360-993-8973
Research Geologist Matthew Patrick, Ph.D. mpatrick@usgs.gov 808-967-8861
Supervisory Geophysicist Benjamin A. Pauk bpauk@usgs.gov 360-993-8992
Research Geophysicist Jeremy D. Pesicek, Ph.D. jpesicek@usgs.gov 360-993-8998
Administrative Operations Assistant Kevin H. Pesola kpesola@usgs.gov 360-993-8963
Deputy Scientist-in-Charge David Phillips, Ph.D. daphillips@usgs.gov 808-967-8827
Scientist in Charge Michael Poland mpoland@usgs.gov 360-993-8900
Volcano Seismologist John A. Power jpower@usgs.gov 907-786-7426
Geologist David W. Ramsey dramsey@usgs.gov 360-993-8978
Software Engineer Michael Randall 360-993-8991
Geophysicist Cyrus Whitney Read cread@usgs.gov 907-786-7469
Physical Science Technician Aaron P. Rinehart arinehart@usgs.gov
Geologist Joel E. Robinson
Volcanologist Emeritus William E Scott wescott@usgs.gov 360-993-8942
Volcanologist Sally Sennert ssennert@usgs.gov 202-633-1805
Deputy Director Brian Shiro, Ph.D. bshiro@usgs.gov 303-273-8515
Media Lead - Natural Hazards Steven Sobieszćzyk ssobie@usgs.gov 503-853-3425
Supervisory Hydrologic Technician Kurt Spicer krspicer@usgs.gov 360-993-8944
Geomorphologist, Physical Geographer Dennis Michael Staley dstaley@usgs.gov 907-786-7423
Associate Program Coordinator Wendy K. Stovall, Ph.D. wstovall@usgs.gov 360-993-8911
Electronic Engineering Technician Kelly J. Swinford kjswinfo@usgs.gov 360-993-8956
Volcano Seismologist Weston Thelen wthelen@usgs.gov 360-993-8977
Research Geologist Frank Trusdell trusdell@usgs.gov 808-967-8812
Research Geologist James W. Vallance jvallance@usgs.gov 360-993-8959
Volcanologist Alexa Van Eaton, Ph.D. avaneaton@usgs.gov 360-993-8955
Supervisory Financial Specialist Jacky Verna 360-993-8953
Volcanologist Kristi L. Wallace kwallace@usgs.gov 907-786-7497
Research Geophysicist Aaron Wech awech@usgs.gov 907-786-7464
Volcano Seismologist — VDAP Jay Wellik jwellik@usgs.gov 360-993-8995
Volcanologist - VDAP Heather M. Wright hwright@usgs.gov 360-993-8916