A sunrise behind a volcanic cone in Craters of the Moon National Monument


on Distributed Volcanism and Distributed Volcanic Hazards

16-20 March 2020 in Flagstaff, Arizona

About the Chapman

Most subaerial volcanoes are found in widely distributed volcanic fields made up of tens to hundreds of vents. Eruption styles and potential impacts also vary. Explosive activity ranges from mild Strombolian and ash-producing eruptions that produce localized tephra fall to more explosive eruptions that result in widespread ashfall. Effusive eruptions can produce far-reaching lava flows, and non-eruptive open-vent outgassing degrades downwind air quality. Many distributed fields on Earth are poorly instrumented and their eruptive histories are not well understood, which limits our ability to forecast the potential location, timing and magnitude of future eruptions.

The purpose of this Chapman is to bring together scientists to discuss, develop, and test conceptual models of distributed volcanism. Focus by the scientific community is especially important now because of continuing growth of cities, communities, and critical infrastructure within sparsely monitored volcanic fields.


Registration is open!


Who should attend?

We invite participants from all disciplines to join us for three days of conference presentations and discussions that will be held March 16-18, 2020 at the USGS Astrogeology Science Center in Flagstaff, Arizona. We especially encourage participants from emergency management, geologic mapping, geochronology, physical volcanology, geomorphology, seismology, geodesy, geochemistry, exploration geophysics, hazards assessment, science communication, and related fields to attend.

Aerial image of the San Francisco Volcanic Field
Image credit: Michael Collier

Field trip

Join us for an optional two-day field trip to the Springerville Volcanic Field that will be held March 19-20, 2020. Accommodations should not be reserved in Flagstaff for this portion of the meeting. We will travel to the 3000 km2, Plio-Pliestocene Springerville volcanic field, the southernmost of the Colorado Plateau-edge dispersive fields, in east-central Arizona (Condit, 1991, Condit et al., 1989b, 1999). We will examine key stratigraphic relations of the 501 units of the field, and discuss the magmatic mapping (Condit, 2007) techniques applied by the five mappers to unravel the eruptive timing and source location of the 451 vents, and to characterize the petrologic and geophysical properties of the lavas of the field (Condit et al., 1989a, Mnich and Condit, 2018). Weather and access permitting, we will visit one of the best exposed of the field’s five maar craters, look at an example of one of the four fissure vents and one of the field’s two shield volcanoes. We will also visit numerous neotectonic features, including faulted flows and post-flow reversal of flow topography features documented by Crumpler et al., 1989, 1994, examine outcrops supporting the volcanic hazard assessments of Mnich and Condit, 2018, several scoria cones, and also discuss the recurrence rate of volcanism in the field (Condit and Connor, 1996), and the control of tectonic inheritance on vent locations (Deng et al., 2017). Time, weather, and logistics permitting we’d like to visit Greens Peak, at 3080m elevation, the highest point in the field, from which many of the features can be viewed.

Download a large (319MB) geo-referenced Lithological Map of the Springerville Volcanic Field.

View this link to the cross-platform Dynamic Digital Map of the Springerville Volcanic Field, DDM-SVFv2, which is an online update of the Condit, 1991, 1995 and Condit et al., 1999 USGS MI Map 2431 maps.

View of Mount Eden Crater Hollow with the Auckland skyline in the background

References cited

  • Condit, C.D., 1991, Lithologic map of the western part of the Springerville volcanic field, east-central Arizona (1:50,000): U.S. Geol. Survey MI Map I-1993, 2 sheets.
  • Condit, C.D., 1995, Dynamic Digital Map: The Springerville Volcanic Field: Prototype color digital maps with ancillary data Boulder Colorado, Geol. Soc. Am. Digital Pub. Series DPSM01MC (CD-ROM for the Macintosh); v. 4.10.95 size: 36.7 megabytes.
  • Condit, C.D., 2007, Magmatic Mapping: Distilling Liquid Moments In Time In Basaltic Volcanic Fields, Geol. Soc. Am. Abst. with Prog., v. 39, No. 6.
  • Condit, C.D., 2019. Dynamic Digital Map of the Springerville Volcanic Field, DDM-SVFv2- 2018-09-10, an On-line Update of the Condit, 1991 and Condit et al., 1999 USGS MI Map 2431. (multi-platform downloads at URL: http://ddm.geo.umass.edu/DDM- SVFv2/ ).
  • Condit, C.D., and Connor, C.B., 1996, Recurrence rates of volcanism in basaltic volcanic fields: An example for the Springerville volcanic field, Arizona: Geol. Soc. Am. Bull., v. 108, p. 1225-1241
  • Condit, C.D., Crumpler, L.S., Aubele, J.C., 1989a. Field trip road log for the Springerville Vol- canic Field, southern margin of the Colorado Plateau. In: Chapin, C., Zidek, J. (Eds.), Field Excursions to Volcanic Terranes in the Western United States, Volume I: Southern Rocky Mountain Region, New Mex. Bur. Mines and Min. Res. Mem. 46, pp. 33–38.
  • Condit, C., Crumpler, L., Aubele, J., Elston, W., 1989b. Patterns of volcanism along the southern margin of the Colorado Plateau: the Springerville field. J. Geophys. Res. 94 (B6), 7975–7986.
  • Condit, C.D., Crumpler, L.S., Aubele, J.C., 1999. Lithologic, age-group, magnetopolarity and geochemical maps of the Springerville Volcanic Field, east-central Arizona, (1: 100,000). U.S. Geol. Survey MI Map I-2431 (5 sheets).
  • Crumpler, L.S., and Aubele, J.C., and Condit, C.D., 1989, Influence Of Quatenary Tectonic Deformation On Volcanism In The Springerville Volcanic Field, Colorado Plateau, USA: New Mex. Bur. Mines and Min. Res. Bulletin 131, p. 64.
  • Crumpler, L.S., and Aubele, J.C., and Condit, C.D.,1994, Volcanoes And Neotectonic Characteristics Of The Springerville Volcanic Field, Arizona, in R. M.
  • Chamberlin, B. S. Kues, S. M. Cather, J. M. Barker and W. C. McIntosh, eds., Mogollon Slope: Socorro, New Mexico Geological Society Guidebook, p. 147-164.
  • Deng, F., Connor, C.B., Malservisi, R., Connor, L.J., White, J.T., Germa, A. and Wetmore, P.H., 2017. A geophysical model for the origin of volcano vent clusters in a Colorado Plateau volcanic field. Journal of Geophysical Research: Solid Earth, 122(11), pp.8910-8924.
  • Mnich, M.E., Condit, C.D., 2018, Basaltic magmatic mapping: A suggested methodology and the resulting petrologic and volcanic hazard implications from the Springerville volcanic field, east-central Arizona, J. Volcanol. Geotherm. Res. (2018), https://doi.org/10.1016/j.jvolgeores.2018.09.009

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The scientific program is now live.

Check out the scientific program and see who will be speaking.

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Format and schedule

The meeting will be held 16 – 18 March, followed by an optional two-day field trip from 19 – 20 March. The meeting will be comprised of oral and poster sessions, breakout sessions, and summary discussions.  
  • 1
    The theme of the first day is geology and petrology with an additional focus on the broad concepts surrounding distributed volcanism. There will be oral presentations and allotted time for discussion followed by a poster session.
  • 2
    The second day’s theme is geophysics and monitoring efforts at distributed fields with some talks focusing in on specific in-depth case studies. Oral presentations and discussion will be followed by discipline-specific break-out groups and a poster session.
  • 3
    On the third day oral presentations will focus on volcano hazards, community response and planning. Break out groups will reconvene to distill important points from the prior 3 days, which will lead into a discussion amongst all attendees.
View of the One Tree Hill volcanic peak in Auckland

Abstract submission policies 

Abstract submissions will open on 2 October and close on 26 November. You are not required to be an AGU member to submit an abstract. There is no fee for submissions.

Abstracts must focus on scientific results or their application. The Program Committee may decline abstracts with other focuses.

By submitting an abstract, you are obligated to give a presentation in the designated manner assigned by the Program Committee. Your submission also grants AGU permission to publish the abstract.

You cannot request oral presentations, although you may request a poster presentation.

USGS Landsat image of Hells Half Acre in Idaho
Image credit: USGS

Abstract submission guidelines

Abstracts must meet the following guidelines to be considered for the Chapman Conference. 
  • 1
    Your abstract title should be no more than 300 characters and the abstract text must be less than 2000 characters. The character limit includes punctuation, but not spacing.
  • 2
    In lieu of adding the names of individual team members, you may reference a research team may be referenced in the ‘Title of Team’ field during the submission process.
  • 3
    You may add one table or image to your submission. If you would like to include multiple images, you must combine the images and save them as one file. We prefer image files be .jpg, however, .png, and .gif are also supported file types.
  • 4
    Submissions can be submitted and edited at any time up until 26 November.
A hiking trail with two hikers in the distance at Craters of the Moon National Monument

Poster presenter guidelines

Each presenter will have a poster space of 60” x 60” (5 feet by 5 feet). Presenters will share 10’W x 5’H poster boards. Presenters should refer to the scientific program for information on when to display their poster. The scientific program is available here.

The presentation must cover the material as cited in the abstract.

Volcano erupting ash on Mount Sinabung, Indonesia

Oral Presenter Guidelines

Please be sure you to bring a copy of your presentation on a USB drive as a backup. Presentations should be formatted to 16:9 if possible. 4:3 will also be supported. The podium laptop will be a PC.

Lava flowing in Hawaii Volcanoes National Park


Registration for the Chapman Conference on Distributed Volcanism is open!
A hiker standing on a rock pile in the skylight of a tunnel

Registration rates and policies

The registration fee includes access to the scientific program, refreshment breaks and lunch Monday, Tuesday and Wednesday. The registration deadline is 12 February 2020. .

  • Professionals: $550.00 USD
  • Students: $425.00 USD
  • Low-income and lower-middle income* country residents: $425.00 USD

*Low-income and lower-middle income countries as defined by the World Bank.

Cancellation policy: If you must cancel your registration, you must email AGU with written notification. Registration cancellations received by 12 February 2020 will receive a full refund. Cancellations received between and 13 and 19 February 2020 and a $50 processing fee deducted. No refunds will be issued after 19 February 2020.

A yellow field of wildflowers and trees in front of O'Leary Peak


Accommodations should be booked in Flagstaff for the first three days. If you plan to attend the field trip, accommodations will be located in closer proximity to the Springerville Volcanic Field.

Learn more
Landscape photo showing the volcanoes of Craters of the Moon National Monument in the distance

Chapman Program Committee

 Institution  Location
 Chuck Connor  University of South Florida  United States
 Wendy K. Stovall  Yellowstone Volcano Observatory, USGS  United States
 Michael Ort  Northern Arizona University  United States
 Michael Poland  Yellowstone Volcano Observatory, USGS  United States
 Elise Rumpf  Astrogeology Science Center, USGS  United States