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M4.4 Mirjapur-Tangail Earthquake, 2008

Date:

20 September 2008

Epicentre:

Mirjapur area, Dhaka Div.

Time:

11:52:00 UTC (17:52:00 BST)

Latitude:

24.100 N (IMD)

Longitude:

90.100 E (IMD)

Depth:

20 kms (IMD)

Magnitude:

ML=4.4 (DUSNET)

Additional Info


 

Map Disclaimer


A light earthquake (M4.0-4.9 termed as light) occurred in the Mirjapur-Tangail area of central Bangladesh, on 20 September 2008 at 17:52 PM local time in Bangladesh. It had a magnitude of ML=4.4 and was felt in many parts of the Dhaka division as well as in the capital, Dhaka. This earthquake was preceeded and followed by several smaller tremors, some of which were also felt in the region.

If you felt this earthquake please take the time to add your report to a "felt" map. 

The earthquake was centr
ed 9 kms WSW of Betail (Dhaka), Bangladesh),
24.2 kms ESE of Tangail (Dhaka), Bangladesh),
35 kms ENE of Daulatpur (Dhaka), Bangladesh),
40 kms NW of Tongi (Dhaka), Bangladesh),
54 kms NW of Dhaka (Dhaka), Bangladesh),
56 kms ESE of Sirajganj (Rajshahi), Bangladesh,
77 kms WSW of Kishorganj (Dhaka), Bangladesh),
92.5 kms SSE of Jamalpur (Dhaka), Bangladesh),
150 kms NNE of Khulna (Pabna), Bangladesh,
265 kms NNW of Chittagong (Chittagong), Bangladesh.

A series of mild to light tremors were felt in central and southern parts of Dhaka division in central Bangladesh on 20 September and the following day. The first event, a ML=3.6 was recorded by the Dhaka University Seismic Network at 17:15 BST (11:14 UTC), a ML=3.0 event at 17:42 BST (11:42 UTC) and was followed with 30-minutes by a stronger ML=4.4 event. This earthquake was then followed quickly by a ML=3.9 event at 18:01 BST (12:01 UTC) and thereafter by 7 mild tremors until 09:13 BST (03:13 UTC) on 21 September. At least two further unrecorded tremors were felt between ~17:22 and ~17:30 BST at Dhaka, Faridpur and Narayanganj.

Date

BST

M

T

Location

21sep08

09:13:14

2.7

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

21sep08

08:29:48

2.5

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

21sep08

07:55:28

3.7

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

21sep08

05:03:23

2.7

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

21sep08

04:54:15

3.0

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

20sep08

22:16:34

2.2

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

20sep08

18:21:41

2.7

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

20sep08

18:01:01

3.9

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

20sep08

17:52:00

4.4

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

20sep08

17:42:46

3.0

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

20sep08

~17:30

n/a

-

- Felt locally -

20sep08

~17:22

n/a

-

- Felt locally -

20sep08

11:16:36

3.6

ML

Mirjapur-Tangail region (Dhaka), Bangladesh

Given the short intervals between the tremors, most of which were felt, it is difficult to differentiate the shaking that were reported at multiple times. Several of the tremors were felt in Dhaka as well as other cities and towns in the region. Three felt reports received from the Dhaka region indicated an EMS intensity of 3 in the Gulshan and Uttara areas of the city. Elsewhere in the city, some buildings are thought to have developed cracks. Although the intensity of the earthquake was not high in Dhaka, many people went outdoors fearing a larger earthquake given the number of tremors that were felt within minutes of each other. Tremors were also felt at Faridpur, Madaripur, Munshiganj, Narayanganj, Tangail and even as far south as Chandpur. Seismic seiches were observed in canals, rivers and ponds as a result of the tremors in Madaripur district.


References
01) Dhaka University Seismic Network (DUSNET), Dhaka, Bangladesh.
02) India Meteorological Department (IMD), Delhi.
0
3) Macroseismic information has been compiled by the ASC from reports by local media and local NGO personnel.

Page Citation
Information on this page may be reproduced in print or electronically but it is requested that a citation be given to this website in the form of a link i.e. "www.asc-india.org".

Map Disclaimer
International boundaries of India (especially Arunachal Pradesh, Jammu & Kashmir, Himachal Pradesh and Uttarakhand) on the displayed map are from Google Maps. These do not conform to the external boundaries of India recognized by the Survey of India. That they are displayed on this page via Google Maps, is only for display purposes and this should not be misinterpreted as an endorsement of these boundaries by the Amateur Seismic Centre (ASC).

Page Updated: 22 Sep 2008 | Website Disclaimer

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