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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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Contacts

Gari Mayberry

Volcano Hazards Program Coordinator
Volcano Hazards Program

Christina A. Neal

Science Center Director
Volcano Science Center
Phone
907-786-7458

Wendy K. Stovall, Ph.D.

Associate Program Coordinator
Volcano Hazards Program
Phone
360-993-8911

Jacky Verna

Supervisory Financial Specialist
Volcano Science Center
Phone
360-993-8953

Jacob B. Lowenstern

Director, Volcano Disaster Assistance Program
Volcano Hazards Program
Phone
360-993-8946

Matt M. Haney

Scientist-in-Charge
Alaska Volcano Observatory
Phone
907-786-7111

Ken Hon, Ph.D.

Scientist-in-Charge
Hawaiian Volcano Observatory
Phone
808-967-8853

David Phillips, Ph.D.

Deputy Scientist-in-Charge
Hawaiian Volcano Observatory
Phone
808-967-8827

Jon Major

Scientist-in-Charge
Cascades Volcano Observatory
Phone
360-993-8927

Andrew Todd Calvert, Ph.D.

Scientist-in-Charge
California Volcano Observatory
Phone
650-329-5276

Michael Poland

Scientist in Charge
Yellowstone Volcano Observatory
Phone
360-993-8900

Employee Directory

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