PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN

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1994.2

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AE waveforms observed during high pressure water infiltration in the rock sample under hydrostatic condition

Osamu NISHIZAWA, S. R. Carlson, Takashi SATOH, Kinichiro KUSUNOSE

Article type: Article
Pages 49-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_49

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Seismic wave fields excited by a release of gravitational energy and/or a reduction of net pressure gradient

Yasuko Takei, Mineo Kumazawa

Article type: Article
Pages 50-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_50

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Long-coda events observed at Tokachi, Me-akan and Galeras volcano

Gomez Diego, Yuichi Nishimura

Article type: Article
Pages 51-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_51

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Monochromatic earthquake observed at Kusatsu-Shirane volcano

J. Oikawa, E. Fujita, Y. Imanishi, K. Yamaoka, Y. Ida

Article type: Article
Pages 52-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_52

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Volcanic tremor associated with fluid flow through vertical pipe

Eisuke FUJITA

Article type: Article
Pages 53-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_53

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E20 THE CONNECTION BETWEEN VOLCANIC TREMOR PARAMETERS AND PHYSICAL PROPERTIES OF MAGMA

E. I. Gordeev

Article type: Article
Pages 54-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_54

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Long-period Volcanic Tremors Observed by Tiltmeter at Volcan Nyiragongo

H. Hamaguchi, H. Ishii, Y. Morita, M. Akumbi

Article type: Article
Pages 55-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_55

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Multichannel observation of short-period volcanic tremor

Y. Sudo, T. Tsutsui, T. Mori, M. Sako, T. Hoka, S. Yosikawa

Article type: Article
Pages 56-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_56

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Aso 94 : Aso Seismic Observation with Broadband Instruments

S. Kaneshima, Y. Sudo, T. Tsutsui, K. Uhira, H. Yamasato, T. Ohminato, ...

Article type: Article
Pages 57-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_57

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ASO-94 : Long-period Tremors Observed with Broadband Seismometers

Hitoshi KAWAKATSU, Hirotoshi MATSUBAYASHI, Jun OIKAWA, Minoru TAKEO, T ...

Article type: Article
Pages 58-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_58

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Modelling of volcanic tremors, magma movement and conduit deformation

Satoru Honda

Article type: Article
Pages 59-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_59

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Observations for the Nyamuragira Eruption in July, 1994

H. Hamaguchi, H. Ishii, S. Tanaka, M. Kaseleka, T. Mavonga, K. S. Kavo ...

Article type: Article
Pages 61-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_61

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F2 TEMPORAL VARIATION IN CODA Q AT NEVADO DEL RUIZ VOLCANO, COLOMBIA

John Makario Londono

Article type: Article
Pages 62-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_62

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The eruptive history of modern Pacaya composite volcano, Guatemala

Shigeru Kitamura

Article type: Article
Pages 63-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_63

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Precursors associated with the 1992 Activity of Merapi Volcano in Indonesia

K. Ishihara, M. Iguchi, O. K. Suganda, K. Kamo, W. S. Tjetjep, Suharn ...

Article type: Article
Pages 64-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_64

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Crustal Structure of the Taal Volcano, Philippine as Derived from Seismic Suruey

Joint Research group of Taal Volcano, Fumihito YAMAZAKI

Article type: Article
Pages 65-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_65

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Acoustic resonance of the atmosphere caused by the 1991 Pinatubo eruption

Makoto Tahira

Article type: Article
Pages 66-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_66

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The Observation of TNT Explosions by means of Low Frequency Microphone

H. Oshima, T. Maekawa, Hm Okada

Article type: Article
Pages 67-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_67

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TNT burst experiments for the evaluation of explosion energy of a volcano

H. Taniguchi, J. Itoh, M. Nakagawa, K. Sangen

Article type: Article
Pages 68-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_68

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Portable Event Recording System for Volcanic Blast

T. Yamauchi, I. Fujii, R. Miyajima, T. Okuda, N. Fujii, Y. Sudo, Y. Ta ...

Article type: Article
Pages 69-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_69

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Development and perfomance test of the deta logger for volcanic seismological prospectings

Yuichi MORITA, Satoshi SHIGEHARA, Hiroyuki HAMAGUCHI

Article type: Article
Pages 70-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_70

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Initiation Conditions of the Phreatomagmatic Explosion : Governing Factors of Explosive Magnitude

Naoyuki FUJII

Article type: Article
Pages 71-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_71

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Relationship between crater size and ejecta volume of explosive eruptions : discrimination of phreato-magmatic and magmatic eruptions

Hiroaki Sato

Article type: Article
Pages 72-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_72

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Prediction of Earthquake and Volcanic Eruption with Inverse Plot of Earthquake Frequency

Koshun YAMAOKA

Article type: Article
Pages 73-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_73

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Pelean-type nuees ardentes related to the growth of lava dome and their deposits

Yukio HAYAKAWA, Motomaro SHIRAO

Article type: Article
Pages 74-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_74

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Height of volcanoes and an instability index

Kenichiro Yamashina

Article type: Article
Pages 75-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_75

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Geological evolution of Unzen volcano inferred from TL (thermoluminescence) ages

Isao Takashima, Masanori Sonoda, Koichiro Watanabe, Eiji Izawa

Article type: Article
Pages 76-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_76

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Chemical evolution of lavas at Unzen volcano

T. Sugimoto, T. Yanagi

Article type: Article
Pages 77-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_77

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The morphologic characteristics of biotite free crystal in the pyroclasts erupted on September 15th, 1991,Unzen Volcano

Marekazu Ohno

Article type: Article
Pages 78-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_78

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cryptocrystalline minerals in groundmass glass of the 1991 dome lava of Unzen volcano : A record of the eruptive condition, degassing and oxidation

Y. Yamaguchi, H. Kondou

Article type: Article
Pages 79-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_79

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Debris avalanche around Mt. Mayu-Yama in view of submarine topography

Tatsuo Sekiguchi

Article type: Article
Pages 80-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_80

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Geological Report on eruptions at Unzen Volcano, after February 1994

Setsuya Nakada, Geological Party Joint University Research Group

Article type: Article
Pages 81-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_81

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Generation of pyroclastic flows due to endogeneous growth of the lava dome at Unzen volcano

Tadahide Ui, Akihiko Fujinawa, Norimichi Matsuo, Joint University Rese ...

Article type: Article
Pages 82-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_82

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Block and ash flow deposits accompanied by collapse of dome lava

T. Miyahara, M. Kanemaki, N. Kikumoto, K. Endo

Article type: Article
Pages 83-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_83

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Similarities between dome lavas of Yakedake and Unzen-Fugendake lava dome

Yasuyuki Miyake, Tomoyuki Hitotsuyanagi

Article type: Article
Pages 84-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_84

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Analysis of ground deformation measurment data at Unzen Volcano (November, 1993-January, 1994)

Kenji Kanjo, Hiroyuki Takayama, Takeshi Matsushima

Article type: Article
Pages 85-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_85

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Ground Deformation at Shimabara Peninsula Estimated by GPS Surveys

K. Nishi, H. Ono, H. Mori, T. Matsushima, S. Ohmi

Article type: Article
Pages 86-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_86

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Long period seismic signals and volumes of pyroclastic flows at Unzen volcano

Hitoshi Yamasato, Kohichi Uhira

Article type: Article
Pages 87-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_87

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Earthquakes beneath the summit of the Unzendake volcano (2) : Source mechanism of a low frequency earthquake

Tetsuo Hashimoto, Koichi Uhira, Hitoshi Yamasato

Article type: Article
Pages 88-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_88

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Simultaneous Measurements of Atmospheric Electric Potential Gradient and Specific Charge of Volcanic Ash : Part 2. Electric Potential Gradient Meausurements at Plural Points around Ash Clouds of Unzen Pyroclastic Flow

T. Miura, T. Koyaguchi, Y. Tanaka

Article type: Article
Pages 89-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_89

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Cross-correlation between ELF Environmental Electromagnetic Level and Occurrence of Lava dome fall and Earthquake at Mt. Fugen

Masayasu HATA, Naoki ASAI, Seiji YABASHI, Xue jun Tian

Article type: Article
Pages 90-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_90

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Spatial distribution of self-potential measured around Mayu-yama, Unzen volcano

Hiroshi KAWABE

Article type: Article
Pages 91-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_91

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Subsurface hydrothermal system inferred from the self-potential and the ground resistivity in Unzen volcano

Takeshi HASHIMOTO, Yoshikazu TANAKA

Article type: Article
Pages 92-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_92

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K-Ar age determination for Unzen volcano : volcanic history of Younger Unzen volcano

H. Hoshizumi, K. Uto, K. Watanabe

Article type: Article
Pages 93-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_93

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Geomorphological study of Shimabara Peninsula

Kunihisa Terai

Article type: Article
Pages 94-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_94

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Thinning of lithosphere beneath the Unzen Volcano as deduced from the narrowing of the Unzen-Shimabara graben

Hiroaki Sato

Article type: Article
Pages 95-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_95

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Regional Seismic Activity Associated with the 1990-94 Eruption of Fugendake, Unzen Volcano

K. Umakoshi, H. Shimizu, N. Matsuwo

Article type: Article
Pages 96-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_96

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Magama ascent process at the shallow part of conduit of Unzen Volcano : Information from seismic activities

H. Shimizu, N. Matsuwo, K. Umakoshi

Article type: Article
Pages 97-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_97

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Location of the Maguma reservoir at Unzen Volcano

Takashi TADA

Article type: Article
Pages 98-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_98

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Pressure source under Unzen Volcano inferred from Vertical Displacements

Geodetic Survey Party The Joint University Research Group, Tsuneo Eto

Article type: Article
Pages 99-
Published: October 20, 1994
Released on J-STAGE: February 10, 2017

DOIhttps://doi.org/10.18940/vsj.1994.2.0_99

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