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International Workshop on the mechanism of Phreatic Eruption

Introduction:
Hakone volcano made a small phreatic eruption in 2015. Fortunately, no human damage was caused by the eruption, however, steaming activity remains higher than before the eruption. Recently, sudden phreatic eruptions have occurred one after another and eruptions of Ontake in 2014 and Kusatsu-Shirane in 2018 caused casualties. In this work shop, scheme for volcano monitoring, research and disaster mitigation measures will be discussed with invited foreign and domestic scientists.

Date: January 15-16, 2020
Time
Jan. 15 (Wed.): 9:30~17:30 (Workshop at Yumoto Fujiya Hotel)
Jan. 16 (Thu.): 9:00~12:00 (Workshop at Yumoto Fujiya Hotel)
Jan. 16 (Thu.): 14:00~16:30 (Symposium at Kanagawa Prefectural Museum)

Venue
Workshop:
Yumoto Fujiya Hotel, Conference room (Official Web)

  • Address: 256-1 Yumoto, Hakone, Kanagawa 250-0392,  Japan
  • Access (Official Web)

Symposium:

Kanagawa Prefectural Museum of Natural History, SEISA Museum Theater (Official Web)

  • Access (Official Web)

Reception:
Jan. 15 (Wed.): 18:00~20:00 at Yumoto Fujiya Hotel (Official Web, Access)
 

Convival party:
Jan. 16 (Thu.): 17:30~19:30 (Ajusting location)

Register:
Please go to registration site
Registlation fee: 2,500JPY for workshop
                      : 5,000JPY for reception
Registration deadline: Dec. 25 (Wed.) 
Registration is not required to attend the symposium

Program

You can download abstract from the link in each title.
International Workshop on the mechanism of Phreatic Eruption (1st day)
Jan. 15 (Wed.) at Yumoto Fujiya Hotel, Conference room

Start End Title Speaker
9:30 9:50 The 2015 Hakone eruption; rupture of shallow vapor pocket triggered by magma replenishment? Kazutaka Mannen
9:50 10:30 Hydrothermal-magmatic interactions driving phreatic eruptions John Stix,
Maarten de Moor
10:30 10:50 Ballistic ejecta of the phreatic eruption at Kusatsu-Shirane volcano, on 23 Jan, 2018 Mitsuhiro Yoshimoto,
and The joint research team for ballistic ejecta from the Kusatsu-shirane 2018 eruption
10:50 11:00 Coffee break
11:00 11:20 Phreatic eruption history at the latest stage (since ca. 3ka) of Hakone Volcano Makoto Kobayashi,
Kazutaka Mannnen,
Tamami Yamaguchi,
Masashi Nagai
11:20 11:40 The September 14, 2015 phreatomagmatic eruption of Nakadake first crater, Aso Volcano Yasuo Miyabuchi,
Yoshiyuki Iizuka,
Chihoko Hara,
Akihiko Yokoo,
Takahiro Ohkura
11:40 12:00 Resistivity structure of preparation zone for phreatic eruptions in several volcanoes in Japan Wataru Kanda,
Kaori Seki,
Yasuo Matsunaga
12:00 13:00 Lunch
13:00 13:40 Persistently Restless Volcanoes: Insights from Telica Volcano, Nicaragua Diana Roman,
Peter LaFemina,
Mel Rodgers,
Halldor Geirsson
13:40 14:00 Detection of local surface deformation using InSAR: a case study of the 2015 phreatic eruption of Hakone Volcano Ryosuke Doke
14:00 14:20 Petrological and geochemical analysis on non-juvenile lithics from phreatic/hydrothermal eruptions Tsukasa Ohba,
Takumi Imura,
Syahreza Angkasa
14:20 15:00 Exploring Statistics of Pre-Eruptive and Non-Eruptive Earthquake Sequences Near Volcanoes Using Global Data Stephanie Prejean,
Jeremy Pesicek
15:00 15:30 Coffee break
15:30 15:50 Temporal variation in the shallow resistivity structure of Aso volcano before the phreatomagmatic eruption in September 2015, as inferred by ACTIVE system Takuto Minami,
Mitsuru Utsugi,
Hiroyuki Inoue
15:50 16:10 High-frequency auto-sampling of hot spring waters for volcanic activity monitoring at Hakone volcano, Japan Toshiya Mori,
Takato Ono,
Fumiaki Tsunomori
16:10 16:30 Review of Ground-Based Interferometric Synthetic Aperture Radar for monitoring of ground deformation in areas of volcanoes Senro Kuraoka
16:30 16:50 Precursory activity of volcanic tremors of the 8 October 2016 explosive eruption of Aso volcano, Japan Takahiro Ohkura,
Kyoji Tani
16:50 17:30 Managing the risk and perception of rapid onset phreatic eruptions: The challenge of public preparedness through hazard maps, warnings, signage and public education Graham Leonard,
David Johnston,
Sally Potter,
Danielle Charlton

Reception (18:00 - 20:00)

International Workshop on the mechanism of Phreatic Eruption (2nd day)
Jan. 16 (Thu.) at Yumoto Fujiya Hotel, Conference room

Start End Title Speaker
9:00 9:05 Opening remarks Kazutaka Mannen
9:05 9:45 A search for precursors to phreatic eruptions Arthur Jolly,
Ivan Lokmer,
Bruce Christenson,
Corentin Caudron,
Iseul Park,
Lauriane Chardot,
Alec Yates,
Ben Kennedy,
Martha Savage
9:45 10:05 Time variations in the chemical and isotopic composition of fumarolic gases at Hakone volcano, Honshu Island Japan over the earthquake swarm and eruption in 2015, interpreted by magma sealing model Takeshi Ohba,
Muga Yaguchi,
Kana Nishino,
Nozomi Numanami,
Yasushi Daita,
Chiho Sukigara,
Masanori Ito,
Urumu Tsunogai
10:05 10:25 Precursors to the eruption at Kuchinoerabujima volcano and decision making of evacuation Masato Iguchi
10:25 10:40 Coffee break
10:40 11:00 Preparation processes leading up to the 2014 phreatic eruption of Mount Ontake, Japan Aitaro Kato
11:00 11:20 Earthquake swarms, subsurface structure and deep low frequency earthquakes beneath Hakone volcano, and its relation to magma-hydrothermal system Yohei Yukutake
11:20 11:40 Relationship between phreatic eruptions and the active hydrothermal system of Kusatsu-Shirane volcano, Japan Akihiko Terada
11:40 12:00 From monitoring to forecasting – Toward statistical evaluation of non-magmatic unrest – Takeshi Hashimoto

International symposium for volcanic hazard mitigation
Jan. 16 (Thu.) at Kanagawa Prefectural Museum of Natural History, SEISA Museum Theater

Start End Title Speaker
14:00 14:02 Opening remarks Daiji Hirata
14:02 14:07 Welcome speech Nobuo Yamaguchi (Mayor of Hakone Town)
14:07 14:47 Identifying and effectively communicating about volcanic unrest in New Zealand Sally Potter,
Gill Jolly,
Brad Scott,
Graham Leonard,
David Johnston
14:47 15:27 Living in harmony with New Zealand's volcanoes: Balancing tourism, social values, land use, and hazards around caldera and cone volcanoes Graham Leonard,
Sally Potter,
David Johnston,
Wendy Saunders
15:27 15:42 Break
15:42 16:22 Recent volcanic eruptions and challenge for volcano disaster mitigation in Japan Toshitsugu Fujii
16:22 16:30 Closing speech Teruyuki Kato

Convival party (17:30 - 19:30)

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