August 31–September 7, 2025

The 15th Field Workshop on Volcanic Gases

CCVG, IAVCEI

Sapporo and Toya-ko, Hokkaido, Japan

2 days of scientific presentations and discussions

3 days of field observations at Usu, Tarumae, and Kuttara volcanoes

Optional excursion at Tokachidake volcano (August 28-31)

On behalf of the Commission on the Chemistry of Volcanic Gases (CCVG) of the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI), we are delighted to invite the international geochemical community working on volcanic gases to participate in the 15th Field Workshop on Volcanic Gases in Hokkaido, Japan, from August 31 to September 7, 2025.

The workshop aims to share and discuss recent developments in observation techniques, results, and interpretations of volcanic gas studies. Its core activities will be composition and flux measurements using direct sampling and remote sensing techniques in active vents, plumes, and soil emissions.

The workshop will include two days of scientific presentations and discussions in Sapporo and three days of fieldwork. The fieldwork will be performed at Kuttara, Usu and/or Tarumae volcano (selective).

The pre-workshop excursion will be offered as an option and will take place at Tokachidake volcano in Hokkaido from August 28 to August 31, 2025. The excursion includes one day of fieldwork at the volcano and one spare day in case of bad weather conditions.

Usu volcano

Direct sampling / In-situ measurement using MultiGAS / Diffuse soil degassing

Tarumae volcano

Direct sampling / In-situ measurement using MultiGAS / Remote sensing measurements

Kuttara volcano

Direct sampling / In-situ measurement using MultiGAS

Information

Thank you for submitting your abstracts and registrations. The registration has been closed.
The deadlines for the abstract submission and grant application are extended to May 10, 2025. Details for the grant are added on the grant page.
Registration, submission, and grant applications have been opened. (March 26, 2025)
Please check the deadlines as shown in IMPORTANT DATES below.
The third circular has been published. Please download it from the link below. (March 26, 2025)
Link to the third circular
Opening of registration and submission forms is delayed. We are sorry for the inconvenience. (March 3, 2025)
Official webpage open (February 5, 2025)
The second circular has been published (Please download from here, December 2024).

CCVG2025_third_circular.pdf

Important dates

February 5, 2025 – Official launch of the website for the 15th CCVG workshop

March 26, 2025 – Registration / Abstract submission / Grant applications open

May 10 April 30, 2025 – Deadline for grant application

May 10 April 30, 2025 – Abstract submission close

May 30, 2025 – Registration close

* Grant applicants will be notified of the result at least 10 days before the registration closes.

August 28-31, 2025 - Optional pre-workshop excursion at Tokachidake volcano

August 31- September 7, 2025 - Workshop at Sapporo and Toya-ko and field observations at Usu, Tarumae, and Kuttara volcanoes

OrganizeRs & COOPERATION

Organizers

IAVCEI Commission on the Chemistry of Volcanic Gases

Earthquake Research Institute, The University of Tokyo

Cooperation

Tokachidake Geopark Promotion Committee

Current board members of CCVG

Co-Leader: Tobias Fischer – University of New Mexico, USA

Co-Leader: Silvana Hidalgo - Escuela Politécnica Nacional, Ecuador

Secretary: Artur Ionescu - Universitatea Babeş-Bolyai, Romania

Scientific committee

Fatima Viverios (IVAR, University of the Azores, Portugal)

Maria Clara Lamberti (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina)

Tjarda Roberts (CNRS with laboratory: Laboratoire de météorologie dynamique and École normale supérieure、France)

Marie Boichu (CNRS/Univ. Lille (Laboratoire d'Optique Atmosphérique), France)

Jonas Kuhn (Department of Atmospheric and Oceanic Sciences, Univ. of California, Los Angels, USA)

Andrea Ricci (Department of Earth Sciences, University of Pisa, Italy)

Brendan McCormick Kilbride (University of Manchester, UK)

Christoph Kern (USGS, Cascades Volcano Observatory, USA)

Local Organizing committee

Leader: Toshiya Mori (UTokyo) / Takeshi Ohba (Tokai Univ.) / Takeshi Hashimoto & Ryo Tanaka (Hokkaido Univ.) / Ryo Takahashi (HRO) / Muga Yaguchi (MRI, JMA) / Ryunosuke Kazahaya & Hiroshi Shinohara (GSJ, AIST) / Masaaki Morita, Hirochika Sumino (UTokyo) / Akihiko Terada (Science Tokyo) / Jun-ichi Hirabayashi (VGRA) / Urumu Tsunogai (Nagoya Univ.)

特定商取引法に基づく表示 / Notation on Act of Specified Commercial Transactions

販売業者名　CCVG2025実行委員会　森　俊哉

販売責任者名　森　俊哉

所在地　〒113-0032　東京都文京区弥生1-1-1　東京大学地震研究所　森田雅明研究室

電話番号　03-5841-5766（月～金曜日　10:00～16:00）

メールアドレス moritama@eri.u-tokyo.ac.jp

支払い方法　クレジットカード

商品代金以外の必要金額　なし

販売価格　申込ページに記載

サービス開始時期　お支払い確認後、24時間以内にメールにてご案内

キャンセルについて　お申込みから1週間以内に電話またはメールにてお問い合わせをお願いいたします。サービス提供後のキャンセル・返金には応じかねます。

主催者都合のサービス提供中止について　主催者の都合により会議の開催が中止になる場合は、振替日にて実施または全額返金いたします。

Distributor Name: CCVG2025 Executive Committee Toshiya Mori

Name of Sales Manager: Toshiya Mori

Location: Masaaki Morita Laboratory, Earthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan

Phone number: +81-3-5841-5766 (Office hours: 10:00 a.m. to 4:00 p.m., Monday through Friday)

E-mail address: moritama@eri.u-tokyo.ac.jp

Payment method: Credit card

The amount required other than product price: None

The sales price: Stated on the registration page

Product delivery time: Emailed within 24 hours after payment is confirmed

Cancellation Policy: Please contact us by phone or e-mail within one week of application. Cancellations and refunds will not be accepted after the service has been provided.

In the event that the conference is canceled for reasons attributable to the organizer, the conference will be held on a substitute date, or a full refund will be provided.

Page updated

Report abuse