Seismological Observation And Network of BMD Md.Rubyet Kabir [email protected] Seismic Observatory...
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Transcript of Seismological Observation And Network of BMD Md.Rubyet Kabir [email protected] Seismic Observatory...
Seismological Observation And Network of BMD
Md.Rubyet [email protected]
Seismic Observatory And Research CenterBangladesh Meteorological Department
Bangladesh
WWW.bmd.gov.bd
Introduction
Bangladesh Meteorological Department is the only responsible organization in Bangladesh for monitoring earthquake and Tsunami.
This Presentation indicates the status of seismic monitoring, early warning communication systems and the data processing system of BMD.
Seismic Network of BMD
BMD’s seismic monitoring system nation-wide consists of four digital Broad-Band Seismometers, two Borehole, two digital short-period seismometers
and six accelerometers with GPS Synchronization
0 200 400
km
IndiaIndia
BangladeshBangladesh
BhutanBhutanNepalNepal
MyanmarMyanmar
ChinaChina
DhakaDhakaDhakaDhakaDhakaDhakaDhakaDhakaDhaka
ChittagongChittagongChittagongChittagongChittagongChittagongChittagongChittagongChittagong
SylhetSylhetSylhetSylhetSylhetSylhetSylhetSylhetSylhet
RangpurRangpurRangpurRangpurRangpurRangpurRangpurRangpurRangpur
Epicenter: Magnitude_Richter_Scale
5 - 84 - 53 - 42 - 3
BMD Station
Epicenter
Seismicity (2007- Mar 2010)
Diagram of Dhaka Seismic Center
1 2 3 4 5 6
7 8 9101112
AB
12x
6x
8x
2x
9x
3x
10x
4x
11x
5x
7x
1x
Eth
erne
t
A
12x
6x
8x
2x
9x
3x
10x
4x
11x
5x
7x
1x
C
RS CS TR RD TD CDTALK / DATA
TALK
RS CS TR RD TD CDTALK / DATA
TALK
RS CS TR RD TD CDTALK / DATA
TALK
Server Server Workstati on Workstati on
Mode m B ank
Mode m B ank
Mode m B ank
Mode m B ank
Mode m B ank
Mode m B ank
COL-ACT-STA-
1 2 3 4 5 6 7 8 9101112HS1 HS2 OK1 OK2 PS
CONSOLE
DTU
DTU
DTU
ROUTER
ROUTER
ROUTER
DDN l i ne to Rangpur
DDN l i ne to Chi ttagong
DDN l i ne to Syl het
Connected toSWC Swi tch
Connected to DhakaAccel erometer(GSMA-2400IP)
Connected to Dhaka Borehol eSei smometer(EDAS-24IP)
Connected to DhakaAccel erometer(GSMA-2400IP)
Connected to Dhaka BroadbandSei smometer(EDAS-24IP)
Connected to Dhaka GPS Recei ver
Connected to PC
Radi o Modem
Radi o Modem
Radi o Modem
Radi o Modem
Radi o Modem
Radi o Modem
To DU
To GSB
To DMB
To MOD
To PMD
To BUET
RAID Pri nter
EDSP-RTS,EDSP-DMS,SMARTSsoftware packages
EDAS-IAS,SMAIASsoftware packages
Diagram of Chittagong, Sylhet and Rangpur Seismic Stations
Vault
GP
S m
onum
ent
HELP
ALPHA
SHIFT
ENTERRUN
DG ER FI
AJ BK CL
7M 8N 9O
DG DG DG
DG T 3U
0V .WX Y Z
TAB
% UTILIZATION
HUB/MAU NIC
2BNC4Mb/s
GPS
Modem Bank Modem BankModem Bank
EDAS-24IP EDAS-24IP GSMA-2400IP
FBS-60
FSS-3B
BBAS-1
RS CS TR RD TD CDTALK / DATA
TALK
GPS Antenna
Data Acquisition
Server
Seismometer
Switch
Router DTU
GPS receiver
Computer
DDN line to Dhaka
COL-ACT-STA-
1 2 3 4 5 6 7 8 9101112HS1 HS2 OK1 OK2 PS
CONSOLE
Accelerometer
EDSP,RISE,SMARTS software packages
Type of instrument
From April 2007 Broad Band seismometer, Short period seismometer, Borehole seismometer, Accelerometer etc are in operation. All of these seismometer have three components namely N-S, E-W, and vertical.
Also we have a GPS network.
Type of Seismic Equipments
Broad band Seismometer Short period seismometer
Borehole SeismometerAccelerometer
Type of Seismic sensors
yesGeodeviceGSMA – 2400IP
Recorder for Trixial Accelerometer
yesGeodeviceEDAS - 24IP
Recorder for Broadband Seismometer
yesGeodeviceBBA - 2Digital Trixial Accelerometer
yesGeodeviceJCV -104Digital short period seismometer
yesGeodeviceFBS - 60 DBH
Digital Borehole Seismometer
yesGeodeviceFBS -60DBH
Digital Broadband seismometer
PlannedExistingDeveloperModalDescription of item
Logical Relations of Data Collection and Process System
First Real Time System
Operating Automatically(SCO UNIX)
Second Real Time System
Operating Automatically(SCO UNIX)
Second Interactive SystemOperated Manually
(SCO UNIX)
First Interactive SystemOperated Manually
(SCO UNIX)
For Writing CD and Data Backup(Windows)
NFS NFS
SAMBA
Seismic Communication System
Type Existing Planned
GTS yes
Internet
yes
Telephone lines/DDN yes
Spread Spectrum Radio yes
Other yes
EARTHQUAKE ANALYSIS
Occurrence time: 08 53 02.34(UTC) Epicenter : Lat- 27.39N, Long- 091.37EMagnitude: 6.3 (R.S)Depth : 10 Km, Distance: 462 km
S=V.T
BMD Bulletins Dissemination Mechanism
64 Kbps TCP/IP (GTS) Fax / Email
BMD
RTH, New Delhi JMA / PTWC
DMB BTV Radio Press PMO
General /Mass People
Tsunami Warning System in Bangladesh
Requirements
Expansion of Seismic observation networks. Auto Analysis System. Training facilities. Sharing of real/near real-time seismic data to
improve quality of earthquake location. Multi-lateral study between Bangladesh and
neighbor countries.