i  /-  ¼ + ½ῐ !

"#$%&ῑ'() *+,-*./ῌ012345

678῎῍79:;3 <=>.?@3 ABC *+DE=F +322+33/ GHIJKLMNOPQ RST1῏US1VWXYZ +/CMG.*T [\]^_`abcde f g -/hijkl Mmnopqrst uvwWxy. .1
hijkz{ |}~ uvwWxy. .3
 /+HI ,**1 G ++  +,  0-  0.

¼ , ½


,**. GMKLQ}~MPIoHI
,-*.&ῑ'(/ῌ01 033  X¡¢w£¤¥MHIuvw
 ?#¦§=, ¨ῒ©ª1« 13HI ,**2 G +  ,  3-  3.
 : ¬!­®¯HI°±!² i³´µ!

x³´¶· xi ¸´¹º»¤  xiii

ii

¥ - ¦

 ! " 33    ++#$%&'( ,**2 ) - * . * +,2+,-./0 +,3 ,**2 ¥ . ¦1234567895:;<=>?@ABCDEFGHIJKLMNOPQRSTU

0VWXYZ[./O\]^_`ab +-+#$%&'( ,**2 ) / * 0 * +-1+,-./0 +-2¥ / ¦

cd\e678fghi%&?jk&ABlm/noXpqrstu8vw
xyz{|}~O|

 +.-

The Tephra Layers Distributed around the Eastern Foot of the Zao Volcano Ages and Volumes ofthe Za-To + to . Tephras Kotaro MIURA, Masao BAN and Hiroshi YAGI +/+

C{ YVW  +/3#$%&'( ,**2 ) 1 * 2 * +0++,-./0 +0L ¡¢R£¤ +03iii´ 0 ¶ +3,0  !"#$%&'( )*+, +1+-. /0123 E 45 G 678(9:; <= > +3?@AB ,**2  , CD6EFG HIJKLMNOP ,*+QRQST"SUVDWXYZ[\]^_` a ,*1$bcdefg"bhijklmDnYopqrc$bstufvw"xyzA {| ,+/IAVCEI,**2 }~ -. _` a.>K

=y.{ o H- ,,    "¡$¢ D£¤¥ ¦§OP ,-,**2 e¨©~  ,-/,**2 eª©~  ,.*    ,.1«¬­®¯° ,**2  3 C+* C ,//±²k³2V ,/1 : ´ /- µ ´ + ¶ ´ 0 ¶ }·¸¹º» iiv

BULLETIN OF THE VOLCANOLOGICALSOCIETY OF JAPANVol. /- Contents
No. +Articles
Seismic Pseudo Reﬂection Proﬁling in Shirane Pyrocrastic Cone, Kusatsu-Shirane VolcanoῌῌῌῌῌῌῌῌTomoki TSUTSUI, Shin’ya ONIZAWA, Takehiko MORI, Kenji NOGAMI,
Jun’ichi HIRABAYASHI, Yasuo OGAWA, Noriaki TAKAGI,Atsuo SUZUKI, Jun OIKAWA, Haruhisa NAKAMICHI,Shin YOSHIKAWA and Takeshi MATSUSHIMAῌ

+The Sequence and Style of the +322ῌ+33/ Eruptions of Nakadake Aso Volcano, Kyushu, JapanῌῌῌῌῌῌῌῌῌῌῌShin-ichiro IKEBE, Kazunori WATANABE and Yasuo MIYABUCHIῌ +/Simpliﬁed test on tilt response of CMG.*T seismometers ῌῌῌῌῌῌῌῌῌHiroshi AOYAMAῌ -/Book Reviews
Book Review : Volcanic Eruption : Prediction and Disaster Mitigation by Hiroki KAMATA
ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌIsoji MIYAGIῌ .1
Book Review : Awesome and Wonderful Tour of the Volcano World edited by Hiroki KAMATA
ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌIsoji MIYAGIῌ .3
Proceedings of the Society ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ /+News
Volcanic Activity in Japan, during November῍December, ,**1 ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ 0Miscellaneous News ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ 0.

No. ,Articles
Geochemical Observation on the ,**. Eruption of Asama Volcano through Analysis of Watersoluble Components on the AshῌῌῌῌῌῌῌῌῌῌῌῌKenji NOGAMI, Shin’ya ONIZAWA and Jun-ichi HIRABAYASHIῌ 03
Eruptions and Earthquakes Occurred along Amurian Plate Eastern Margin in the 3th CenturyῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌMasashi TSUKUI, Shun NAKANO and Koichiro SAITOῌ 13
News
Volcanic Activity in Japan, during January῍February, ,**2 ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ 3Miscellaneous News ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ 3.
Appendix : ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌiv

No. -Article
Characterization of Pore Structures in a Volcanic Rock from Permeability Measurements῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍Yuhta SHIMIZU and Tohru WATANABE῍ 33
Proceedings of the Society ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍ ++News
Volcanic Activity in Japan, during March῎April, ,**2 ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍ +,2Miscellaneous News ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍ +,3Information on ,**2 Fall Annual Meeting

No. .

LetterRelation between High Temperature and Low Resistivity in the Shallow Part of the Northeastern
Foot of Unzen Volcano ῍῍῍῍῍Shogo KOMORI, Tsuneomi KAGIYAMA, Mitsuru UTSUGI,Akihiko TERADA, Hiroyuki INOUE, Wahyu SRIGUTOMO,Yoshikazu TANAKA and Hideo HOSHIZUMI῍ +-+News
Volcanic Activity in Japan, during May῎June, ,**2 ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍ +-1
Miscellaneous News ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍ +-2No. /Article
Relationship Between the Explosive Activities and the Associated Volcanic Tremors observed atNakadake Summit of Aso VolcanoῌThe Temporal Variation in Amplitude of Tremors
Recorded by Wiechert Seismographῌ῍῍῍῍Hironori SAKAGUCHI, Yasuaki SUDO, Yoshihiro SAWADA and Shin YOSHIKAWA῍ +.Letter
The Tephra Layers Distributed around the Eastern Foot of the Zao VolcanoῌAges and Volumesof the Za-To + to . Tephrasῌ ῍῍῍῍῍῍Kotaro MIURA, Masao BAN and Hiroshi YAGI῍ +/+Book Review
Book Review : Modeling of Volcanic Phenomena by Takehiro KOYAGUCHI ῍Atsushi TORAMARU῍ +/3NewsVolcanic Activity in Japan, during July῎August, ,**2 ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍ +0+
Miscellaneous News ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍ +0Obituary
To the Memories of Dr. Kenzo YAGI ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍Yoshio KATSUI῍ +03

vi

No. 0Article
Restudy of Stratigraphy and Paleomagnetic Characteristics of Taisho Lahar Deposit Associatedwith the +3,0 Eruption on Tokachidake Volcano, Central Hokkaido, JapanῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌShimpei UESAWAῌ +1+LettersRadiocarbon Ages of the Eruptive Products from the Eruptive Episodes E and G, Towada Volcano,
Northeast Japan ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌTakashi KUDOῌ +3The February ,**2 Ash Deposit from the Nakadake Crater, Aso Volcano, JapanῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌYasuo MIYABUCHI and Shin-ichiro IKEBEῌ ,*+Scientiﬁc Communications
Experimental Studies of Dehydration and Open-System Degassing of MagmaῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌSatoshi OKUMURAῌ ,*1Source Mechanism and Seismic Velocity Structure of Source Region of Deep Low-frequency
Earthquakes beneath Volcanoes : Case Studies of Mt. Iwate and Mt. FujiῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌHaruhisa NAKAMICHIῌ ,+/Report of IAVCEI ,**2 General Assembly in Reykjavı́k, IcelandῌῌῌῌῌῌῌTakao OHMINATO, Yosuke AOKI, Michiko OHWADA, Satoshi OKUMURA,Chiho KUSUDA, Takao KOYAMA, Takeshi SAITO, Shinji TAKARADA,Fukashi MAENO, Nobuo MATSUSHIMA, Daisuke MIURA,Sawako MIYABAYASHIῌ ,,Book Review
Book Review : Island Arc Volcano and Continental Crust by Takeru YANAGI ῌIchiro KANEOKAῌ ,-Titles of Papers Presented at the Meeting of the Society,**2 Spring Meetingῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ ,-/,**2 Fall Meeting ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ ,.*Proceedings of the Society ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ ,.1
News
Volcanic Activity in Japan, during July῍August, ,**2 ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ ,//Miscellaneous News ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌ ,/1
Appendix ; Vol. /- (No. +ῌNo. 0) ContentsῌAuthor Index ῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌῌivii

ῑῐ῏῎ ῌAuthor Index῍}~n| ῌAOKI, Yosuke,,-0AOYAMA, Hiroshi -/+ BAN, Masao +/+*/   HIRABAYASHI, Jun-ichi +, 03

+, ,   

HOSHIZUMI, Hideo +-+.

  

IKEBE, Shin-ichiro +/, ,*++, 0

! " #INOUE, Hiroyuki +-+.

$  % &KAGIYAMA, Tsuneomi +-+.

' (  

KANEOKA, Ichiro ,--0)* 

KATSUI, Yoshio +03

/

+ , - .

KOMORI, Shogo +-+.

+  / KOYAMA, Takao ,,-0

0 1
/KUDO, Takashi +3-02 3 4 5KUSUDA, Chiho ,,-0

6 7

8

MAENO, Fukashi ,,-0

9 : ; MATSUSHIMA, Nobuo ,,-0

9 :<MATSUSHIMA, Takeshi ++

= > ? @MIURA, Daisuke,,-0= > ABMIURA, Kotaro +/+*/

C  DEFMIYABAYASHI, Sawako ,,-0

C G H MIYABUCHI, Yasuo +/, ,*++, 0C I J KMIYAGI, Isoji .1, .3

+

,

< L

MORI, Takehiko ++

M N K ONAKAMICHI, Haruhisa +,,+/+, 0M 7P

NAKANO, Shun13,7 ! < K

NOGAMI, Kenji +,03

+, ,+ Q R 

OGAWA, Yasuo ++

? S T OHMINATO, Takao ,,-0

?E3 N F

OHWADA, Michiko,,-0U QV

OIKAWA, Jun ++

W X

Y

OKUMURA, Satoshi ,*1, ,,-0

Z [ \ ]ONIZAWA, Shin’ya +,03

+,,

^ 1 _`SAITO, Koichiro 13,

^ 1 a b

SAITO, Takeshi ,,-0

c d e f

SAKAGUCHI, Hironori +.-/

g 3  eSAWADA, Yoshihiro +.-/h i j BSHIMIZU, Yuhta 33-klmnopqr

SRIGUTOMO, Wahyu +-+.

s 1 t uSUDO, Yasuaki +.-/

vw x

SUZUKI, Atsuo ++

yz {TAKAGI, Noriaki ++viii

   TAKARADA, Shinji ,,-0



TANAKA, Yoshikazu +-+.



TERADA, Akihiko +-+.

   TORAMARU, Atsushi +/3/  TSUKUI, Masashi 13,   TSUTSUI, Tomoki ++   UESAWA, Shimpei +1+0

UTSUGI, Mitsuru +-+.

WATANABE, Tohru 33

-! " $ %WATANABE, Kazunori +/+&  ' (YAGI, Hiroshi +/+*/) *YOSHIKAWA, Shin +,+.-+,/

! "#+