There was an earthquake in Arunachal Pradesh , last night (Assam). The epicenter is estimated to be 155 Kilometers north to Dibrugarh. Strong tremors were felt in Tinsukia.
What I found interesting is the difference in reporting it, in terms of details by two monitoring agencies:
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Indian Meteorological Department:
Date of Occurrence: 02/06/2005
Time:01:36:35.0(IST)
Intensity:MODERATE
Magnitude:5.9
Epicentre:Lat. 29.3 deg. N, Long. 94.7 deg. E
Region: TIBET-INDIA (ARUNACHAL PRADESH)BORDER REGION
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US GEOLOGICAL SURVEY:
Magnitude 5.9
Date-Time Wednesday, June 1, 2005 at 20:06:42 (UTC)
June 2, 2005 at 1:36:42 AM = local time at epicenter
Location 28.871�N, 94.598�E
Depth 37.2 km (23.1 miles)
Region ARUNACHAL PRADESH, INDIA
Distances
155 km (100 miles) NNW of Dibrugahr, Assam, India
220 km (135 miles) NNE of Itanagar, Arunachal Pradesh, India
930 km (580 miles) NE of Kolkata (Calcutta), West Bengal, India
1695 km (1050 miles) E of NEW DELHI, Delhi, India
Location Uncertainty horizontal +/- 8.4 km (5.2 miles);
depth +/- 27.5 km (17.1 miles)
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I wonder why do the two agencies differ so much in estimating the epicenter? Considering the difference of the latitude estimated by the two agencies they differ in 0.5�, which should make the estimated epicenters almost 55 Kilometers apart. The longitudinal difference of .2� also makes the epicenters almost 22 Km apart!
Is it not possible to find out the exact epicenter at all? Could somebody who deals with these things answer?
I tend to go with the USGS report more, because of their details and their mention about the limitations of their report!!
Priyankoo
The most important thing in life is never to forget who you are...
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