1. Seismological Observation And Network of BMD
Md.Rubyet Kabir
Seismic Observatory And Research Center
Bangladesh Meteorological Department
Bangladesh

2. 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.

3. 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

4. Seismicity (2007- Mar 2010)

5. Diagram of Dhaka Seismic Center

6. Diagram of Chittagong, Sylhet and Rangpur Seismic Stations

7. 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.

8. Type of Seismic Equipments
Short period seismometer
Broad band Seismometer
Accelerometer
Borehole Seismometer

9. Type of Seismic sensors
yes
Geodevice
GSMA – 2400IP
Recorder for Trixial Accelerometer
EDAS - 24IP
Recorder for Broadband Seismometer
BBA - 2
Digital Trixial Accelerometer
JCV -104
Digital short period seismometer
FBS - 60 DBH
Digital Borehole Seismometer
FBS -60DBH
Digital Broadband seismometer
Planned
Existing
Developer
Modal
Description of item

10. Logical Relations of Data Collection and Process System
First
Real Time System
Operating Automatically
(SCO UNIX)
Second
Real Time System
Operating Automatically (SCO UNIX)
SAMBA
NFS
NFS
First
Interactive System
Operated Manually
(SCO UNIX)
For Writing CD and Data Backup
(Windows)
Second
Interactive System
Operated Manually
(SCO UNIX)

11. Seismic Communication System
Type
Existing
Planned
GTS
yes
Internet
Telephone lines/DDN
Spread Spectrum Radio
Other

12. EARTHQUAKE ANALYSIS Occurrence time: 08 53 02.34(UTC)
S=V.T
Occurrence time: (UTC)
Epicenter : Lat N, Long E
Magnitude: 6.3 (R.S)
Depth : 10 Km, Distance: 462 km

13. BMD Bulletins Dissemination Mechanism

14. Tsunami Warning System in Bangladesh
JMA / PTWC
RTH, New Delhi
64 Kbps TCP/IP (GTS) Fax /
BMD
DMB
BTV
Radio
Press
PMO
General /Mass People

15. 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.