Devastating Nepal Earthquake 2015-04-25 Preliminary report on structures

 Moment magnitude: M7.8 (Revised)Epicenter: Lat. 28.143  Long 84.7079
Local Time: 11:56 (GMT+5:45)
Fatalities: More than 1800, It will rise as data collection is in progress
Series of Aftershocks: 33 recorded till now

Structural Damages:

Near by the Epicenter most of the houses were built of stone masonry with mud mortar, some of RCC framed and few of brick Masonry. As reported and shared in social media and news from Nepal, Most of the stone masonry houses collapsed with in about 100 km from epicentral distance.
In Kathmandu valley many world heritage site’s structures vanished. Many monumental structures flattened. Dharahara (9 stories tower) suffered from 1934 earthquake with collapse at 5th stories now collapsed from first floor. Many RC framed structures got collapsed in Kathmandu valley, death toll may rise more in Kathmandu and rest of the country.
Many villages in Lamjung, Gorkha, Rasuwa and Dhading districts got collapsed where most of the structures are of stone masonry with mud mortar structures.


List of Earthquake Main shock and After shocks (USGS)

There are 33 aftershocks recorded till 26th April 5:26 AM (Local Time GMT+5:45) and expecting more.
Date
Time NST
Latitude
Longitude
Depth
Mag
MagType
4/25/2015
11:56 AM
28.1473
84.7079
15
7.8
mww
4/25/2015
12:22 PM
27.7239
85.8182
9.85
5.1
mb
4/25/2015
12:30 PM
28.1927
84.8645
14.62
6.6
mb
4/25/2015
12:41 PM
27.91
85.6501
10
5.5
mb
4/25/2015
12:52 PM
27.7278
85.9185
10
5
mb
4/25/2015
12:58 PM
27.5458
85.5502
10
4.8
mb
4/25/2015
1:01 PM
28.002
85.2694
10
4.8
mb
4/25/2015
1:24 PM
27.6659
85.7483
10
4.5
mb
4/25/2015
1:32 PM
27.8549
85.5572
10
5
mb
4/25/2015
1:50 PM
27.7307
85.7304
10
4.6
mb
4/25/2015
2:01 PM
27.6733
85.6878
10
4.9
mb
4/25/2015
2:05 PM
27.9528
85.7219
10
4.7
mb
4/25/2015
2:14 PM
27.9903
84.7097
10
5
mb
4/25/2015
2:40 PM
27.6364
85.5029
10
5.3
mb
4/25/2015
2:48 PM
27.8741
85.3069
10
4.9
mb
4/25/2015
3:02 PM
28.4282
87.3382
10
5.7
mb
4/25/2015
3:15 PM
27.9938
85.437
10
5
mb
4/25/2015
4:08 PM
27.8732
85.762
10
4.2
mb
4/25/2015
4:25 PM
27.5667
85.8384
10
4.8
mb
4/25/2015
4:38 PM
27.7719
85.8701
10
4.4
mb
4/25/2015
5:46 PM
28.0438
85.4854
10
4.2
mb
4/25/2015
6:02 PM
28.0049
85.5638
10
4.5
mb
4/25/2015
6:29 PM
28.1513
84.6587
10
5.2
mb
4/25/2015
7:15 PM
28.1078
85.0726
10
4.6
mb
4/25/2015
7:21 PM
27.7476
85.89
10
4.6
mb
4/25/2015
7:55 PM
27.5843
85.6622
10
4.6
mb
4/25/2015
10:12 PM
27.9087
85.6175
10
4.9
mb
4/25/2015
11:27 PM
28.3064
85.81
3.23
5.4
mb
4/26/2015
12:43 AM
27.6798
85.3443
10
4.1
mb
4/26/2015
2:17 AM
27.5632
85.7583
10
4.4
mb
4/26/2015
2:52 AM
27.732
85.7266
10
4.7
mb
4/26/2015
5:01 AM
27.8052
84.8744
10
5.6
mb
4/26/2015
5:26 AM
27.5598
85.9359
10
4.5
mb











RC frame building collapsed in Baniyatar Kathmandu

9 storey Dharahara vanished in Kathmandu

several snaps from KTM

RC Building collapsed- Kathmandu

Highrise Apartment crushed in Kathmandu

Stone Masonry Buildings collapsed in Barpak Gorkha

RC Building collapsed

Basantapur Durbarsquare Damaged

Newly constructed School building damaged in Gorkha

 These photos collected from social media.

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