In this paper, the immediate estimation system for wide-area distribution of seismic intensity by using seismic intensity information network system is discussed. In general, although seismic intensity on each seismic intensity monitoring points can be obtained by using seismic intensity information network system within a few minutes after earthquake occurs, wide area distribution of seismic intensity is not obtained. This is because the number of seismic intensity monitoring points on the network system are very few and limited to estimate distribution of seismic intensity. However, by using other information, such as soil profiles on the ground of local areas and attenuation characteristics of seismic intensity, distribution of seismic intensity can be estimated with computer simulation considering seismic wave amplification on the ground immediately after seismic intensity information form the network system is obtained. Especially, array density and optimum arrangement of seismic intensity monitoring points are discussed to estimate efficiently the distribution of seismic intensity in local municipality. Then, the concluded result is that it is effective to place seismic monitoring points in high density populated areas.

1.
I.
Nagao
, “
The latest information on strong motion observation (5) Development of seismic intensity information network
”,
Japan Earthquake Society Newsletter
, Vol.
10
, No.
3
, pp.
24
25
,
1998
.10. (http://www.mmjp.or.jp/kyosindo/saisin/saisin05.html)
2.
The Shinano Mainichi Shimbun
, “
From the result of the questionnaire seismic intensity for the resident by Nagano Prefecture Environmental Protection Research Institute
”, article on
2007
.11.1.
3.
Y.
Furumoto
,
T.
Kosaka
,
T.
Tsugane
and
Shinshu-Univ. Ground Motion Research Group
, ”
On A Site Amplification Map Based on The Subsurface Geology in Matsumoto City, Nagano Pref., Japan
”,
9th Annual International Workshop and Expo. On Sumatran Tsunami Disaster and Recovery - AIWEST-DR 2014
,
Banda Aceh, Indonesia
,
2014
.10.
4.
K.
Aonuma
,
Y.
Furumoto
and
M.
Sugito
“Immediate estimation of seismic intensity distribution in Nagano prefecture area using seismic intensity information network”,
2008
JSCE Chubu branch research presentation
,
2008
.3
5.
Y.
Furumoto
,
M.
Sugito
and
K.
Yashiro
, “
A Simple Conversion Factor of Seismic Intensities from Engineering-Rock Surface to Soil Surface
”,
13th World Conference on Earthquake Engineering Vancouver
,
BC Canada
, paper No. 686,
2004
.
6.
M.
Sugito
,
Y.
Furumoto
, and
T.
Sugiyama
, “
Strong Motion Prediction on Rock Surface by Superposed Evolutionary Spectra
”,
12WCEE
,
Auckland, New Zealand
,
2002
.2.
7.
N.
Nojima
,
M.
Kuze
,
M.
Sugito
and
Y.
Suzuki
, ”
Population Exposure to Seismic intensity for Assessment of Seismic Disaster Potential
”,
Japan Society for Natural Disaster Science
, Vol.
23
, No.
3
, pp.
363
380
,
2004
.
8.
C.
Hikime
,
S.
Nakashita
,
S.
Tanaka
,
T.
Sasaki
,
T.
Oba
,
Y.
Furumoto
,
M.
Kuse
,
Shinshu University Ground Motion Research Group
, “
Development of wide-area seismic intensity prediction system using microtremor array exploration
”,
51th Japan National Conference on Geotechnical Engineering
,
2016
.9.14.
9.
C.
Hikime
,
S.
Nakashita
,
S.
Tanaka
,
T.
Sasaki
,
T.
Oba
,
Y.
Furumoto
,
M.
Kuse
,
Shinshu University Ground Motion Research Group
, “
Development of wide-area seismic intensity prediction system using microtremor array exploration (2
)”,
52nd Japan National Conference on Geotechnical Engineering
,
2017
.7.12.
This content is only available via PDF.
You do not currently have access to this content.