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Small Seismic Monitering net for Irrigation dams in Thailand

By

Thanu Harnpattanapanich

thanuhar@loxinfo.co.th

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Background

KSTSN = The resulted of the resolution of the Council of Ministers on 24 March 1998 for Keng Sue Ten Dam project

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Project Area

(http://www.dmr.go.th/geohazard/earthquake_n/Active_FAULTS_THAI.html)

KSTSN

within 150 km from KST Damsite

(Latitude 17-20.5o N,Longitude 98.5-101.5o E)

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Location of Seismic Station

STATION

NAMELOCATION

LATITUDE

LONGITUDE

SYSTEM

OPERATION DATE

GEOLOGY

MONTAmphoe Ngao ,

Changwat Lampang

18.72 99.99 SPS1999-

PresentFeldspatic greywacke

KAEWAmphoe Chun ,

Changwat Phayao

19.37 100.05 SPS1999-

PresentTuff

HTUMAmphoe Ban

Luang , Changwat Nan

18.87 100.49 SPS1999-

PresentPhyllite

MYOM Mae Yom

National Park18.62 100.16 SPS

1999-Present

Slate

ETNAAmphoe Song ,

Changwat Phrae

18.62 100.16 SMA1999-

PresentSlate

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Collect Seismicity Data

Seismic Station

Seismograph Accelerograph

Computer Program : Quick Talk for Windows

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Set up Database

1. Record : all file of seismic data from 5 seismic stations (earthquake and ambient noise)

2. Data : seismogram of the earthquake from 5 seismic stations that can read the arrival time of p or s wave

3. Event : seismogram of the earthquake from 5 seismic stations that can read the arrival time of p and s wave

4. Bulletin : earthquake bulletin

5. Summary Table : detailed of 5 seismic station (record, data, event, file type, grade)

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Magnitude & Epicenter & Depth

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Analysis: Acceleration and Response Spectra

Computer Program : Quick Look, Strong Motion Software Package

ThaiPSN

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Thank you