[SEFI] Mb 4.7 Earthquake Strikes Chittagong Hill Tracts
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sikandarsiddiqi
Aug 24, 2008, 7:07:02 AM8/24/08
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IN GOD WE TRUST
PARDON,PROTECT & HELP US LORD
GOD, GIVE US THE WISDOM TO UNDERSTAND YOUR WAY OF CREATION WHICH WE CALL SCIENCE
LETS PRAY FOR ALL THOSE WHO ARE SICK FOR EARLY RECOVERY & IN DISTRESS
International E-mail
It is now 4:32 PM afternoon here in Dhaka,Bangladesh, Asia.
Weather condition is fine with sunny-cloudy sky.
Dear Prof. Dr Jahangir Alam > Director,
Earthquake Engineering Research Center, Chittagong
University of Engineering & Technology, Chittagong,
Bangladesh, Asia :
This refers to my mobile phone conversations with you, thanks for alerting me in the early morning hour.
There is a delay in sending information because I was criss crossing over teleseismic data released by ASC after due proceesing of the same received from the Geophysical Survey of the Russian Academy of Sciences and Geo Forschungs Zentrum of Germany.
Mb 4.7 earthquake struck Chittagong Hill Tracts around six minutes past midnight having epicenter at 4.6 kms W of Dalcharimukh (Chittagong) and 71.9 kms ENE of Chittagong city. Duration was approximately for about five to six seconds when most of the people were sleeping but awakened by seismic jolts.
Morphological change is expected affecting hills and rivers within the epicenteral area. There may also be landslides during rainy season as cracks may have developed in the hills.
Sleeper awakened shows an intensity of IV MMIS in Chittagong city about 72 kms from the epicenter which may amplify or de-amplify on the basis of soil condition from place to place.
No report of liquefaction so far and no report of risky seiches in the area. Please note that 1950 Assam Earthquake 8.6 RS triggered seiches in Noakhali, Barisal & Khulna flooding a vast area for about four to five days so in this context my opinion is that a Seiche Zonation Map be drawn for the benefit of all concerned.
Till now no damage report has been received from the area affected but people were panic stricken.
Earthquake technical data subject to further verification is given below which will help you to conduct a SHARP SURVEY.
Date: 22 August 2008 *23 August local time*
Origin Time: 18:06:52 UTC (00:06:52 BST / 23:36:52 IST)
Magnitude: Mb=4.7 (GSR, GFZ)
ASC Region: Chittagong Hill Tracts, Bangladesh
PRELIMINARY EPICENTRAL DATA
Latitude: 22.580 N
Longitude: 92.470 E
Depth: 033.0 kms
Source: GSR
ASC PRELIMINARY LOCATION
4.6 kms W of Dalcharimukh (Chittagong) , Bangladesh,
11.4 kms SE of Mitingpara (Chittagong) , Bangladesh,
30.2 kms ENE of Kaptaimukh (Chittagong) , Bangladesh,
48.8 kms WNW of Kaladan (Mizoram), India,
49.3 kms SE of Rangamati (Chittagong) , Bangladesh,
71.9 kms ENE of Chittagong (Chittagong) , Bangladesh,
128 kms SSE of Aizwal (Mizoram), India,
136 kms NNE of Cox's Bazaar (Chittagong) , Bangladesh.
With best wishes.
Engr.Sikandar Hayat Siddiqi
Project & Seismic Design Management Engineer/ Earthquake Public Awareness Engineer/Technical Co-ordinator, Earthquake & Tsunami Safety Management Initiative(ETASMI)/Technical Co-ordinator, Earthquake & Tsunami Warning Monitoring & ETASMI Data Center
Dhaka - Bangladesh/Asia
International E-mail
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-------------------- m2f --------------------
PARDON,PROTECT & HELP US LORD
GOD, GIVE US THE WISDOM TO UNDERSTAND YOUR WAY OF CREATION WHICH WE CALL SCIENCE
LETS PRAY FOR ALL THOSE WHO ARE SICK FOR EARLY RECOVERY & IN DISTRESS
International E-mail
It is now 4:32 PM afternoon here in Dhaka,Bangladesh, Asia.
Weather condition is fine with sunny-cloudy sky.
Dear Prof. Dr Jahangir Alam > Director,
Earthquake Engineering Research Center, Chittagong
University of Engineering & Technology, Chittagong,
Bangladesh, Asia :
This refers to my mobile phone conversations with you, thanks for alerting me in the early morning hour.
There is a delay in sending information because I was criss crossing over teleseismic data released by ASC after due proceesing of the same received from the Geophysical Survey of the Russian Academy of Sciences and Geo Forschungs Zentrum of Germany.
Mb 4.7 earthquake struck Chittagong Hill Tracts around six minutes past midnight having epicenter at 4.6 kms W of Dalcharimukh (Chittagong) and 71.9 kms ENE of Chittagong city. Duration was approximately for about five to six seconds when most of the people were sleeping but awakened by seismic jolts.
Morphological change is expected affecting hills and rivers within the epicenteral area. There may also be landslides during rainy season as cracks may have developed in the hills.
Sleeper awakened shows an intensity of IV MMIS in Chittagong city about 72 kms from the epicenter which may amplify or de-amplify on the basis of soil condition from place to place.
No report of liquefaction so far and no report of risky seiches in the area. Please note that 1950 Assam Earthquake 8.6 RS triggered seiches in Noakhali, Barisal & Khulna flooding a vast area for about four to five days so in this context my opinion is that a Seiche Zonation Map be drawn for the benefit of all concerned.
Till now no damage report has been received from the area affected but people were panic stricken.
Earthquake technical data subject to further verification is given below which will help you to conduct a SHARP SURVEY.
Date: 22 August 2008 *23 August local time*
Origin Time: 18:06:52 UTC (00:06:52 BST / 23:36:52 IST)
Magnitude: Mb=4.7 (GSR, GFZ)
ASC Region: Chittagong Hill Tracts, Bangladesh
PRELIMINARY EPICENTRAL DATA
Latitude: 22.580 N
Longitude: 92.470 E
Depth: 033.0 kms
Source: GSR
ASC PRELIMINARY LOCATION
4.6 kms W of Dalcharimukh (Chittagong) , Bangladesh,
11.4 kms SE of Mitingpara (Chittagong) , Bangladesh,
30.2 kms ENE of Kaptaimukh (Chittagong) , Bangladesh,
48.8 kms WNW of Kaladan (Mizoram), India,
49.3 kms SE of Rangamati (Chittagong) , Bangladesh,
71.9 kms ENE of Chittagong (Chittagong) , Bangladesh,
128 kms SSE of Aizwal (Mizoram), India,
136 kms NNE of Cox's Bazaar (Chittagong) , Bangladesh.
With best wishes.
Engr.Sikandar Hayat Siddiqi
Project & Seismic Design Management Engineer/ Earthquake Public Awareness Engineer/Technical Co-ordinator, Earthquake & Tsunami Safety Management Initiative(ETASMI)/Technical Co-ordinator, Earthquake & Tsunami Warning Monitoring & ETASMI Data Center
Dhaka - Bangladesh/Asia
International E-mail
-------------------- m2f --------------------
Structural Engineers Forum of India
See the full topic with messages in chronological order using the link at bottom of this message.
Manage Your Mailing Preferences: http://www.sefindia.org/forum/m2f_usercp.php
Manage Your Digest Preferences: http://www.sefindia.org/forum/digests.php
Update Your Profiles: Please login to your account and update your profile, which is like a personal web page listing about you and your expertise. Helps you to network with professionals and industry. Get your user/password here http://www.sefindia.org/?q=user/password and go to my account area and click on edit tab.
Search SEFI Site before you make new post:You may get quick answer to your query by searching SEFI archive. Do make sure you search SEFI archive before opening a new topic. Visit the site experience the search features here.
Read this topic online here:
http://www.sefindia.org/forum/viewtopic.php?p=8183#8183
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