Auxiliary material for Paper 2013JB010762

Active Tectonics and Earthquake Potential of the Myanmar region

Yu Wang
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, U.S.A
Earth Observatory of Singapore, Nanyang Technological University, Singapore

Kerry Sieh
Earth Observatory of Singapore, Nanyang Technological University, Singapore

Soe Thura Tun
Myanmar earthquake committee, Myanmar Engineering society, Myanmar

Kuang-Yin Lai
Department of Geosciences, National Taiwan University, Taiwan
Institute of Earth Sciences, Academia Sinica, Taiwan

Than Myint		
Myanmar earthquake committee, Myanmar Engineering society, Myanmar

Submitted to Journal of Geophysical Research on October 8, 2013


Introduction		

The auxiliary material contains 1 supplementary table and 31 additional figures that present the data coverage are within our study area (Figure S1),
the detailed active tectonics map of Myanmar (Figure S2 and S4 to S12), the plate motion vectors between the Indian and Burma plate (Table S1 and Figure S3),
The maximum fault offset features along various fault segments, and the revised intensity map of 1912 earthquake (Figure S4).


Contents		

1.	2013JB010762-fs01.jpg
	Figure S1. The remote sensing data coverage in our study area.
	The coverage of Landsat ETM+ image is identical to the SRTM coverage. 	

2.	2013JB010762-fs02.jpg
	Figure S2. Neotectonic map of Myanmar, scale 1:2,000,000
		
3.	2013JB010762-fs03.jpg
	Figure S3. The plate motion vector diagram along the western Myanmar coast from selected plate rotation
	models (Kreemer et al., 2003; Socquet et al., 2006; Demets et al., 2010)

4.	2013JB010762-fs04.jpg
	Figure S4. Neotectonic map of southern Myanmar area, scale 1:500,000
		
5.	2013JB010762-fs05.jpg
	Figure S5. Neotectonic map of central-southern Myanmar area, scale 1:500,000

6.	2013JB010762-fs06.jpg
	Figure S6. Neotectonic map of Myanmar and Bangladesh area, scale 1:500,000	

7.	2013JB010762-fs07.jpg
	Figure S7. Neotectonic map of northern Myanmar area, scale 1:500,000
		
8.	2013JB010762-fs08.jpg
	Figure S8. Neotectonic map of central-northern Myanmar area, scale 1:500,000

9.	2013JB010762-fs09.jpg
	Figure S9. Neotectonic map of Myanmar-China area, scale 1:500,000
		
10.	2013JB010762-fs10.jpg
	Figure S10. Neotectonic map of eastern Myanmar, scale 1:500,000

11.	2013JB010762-fs11.jpg
	Figure S11. Neotectonic map of southwestern Shan plateau, scale 1:500,000

12.	2013JB010762-fs12.jpg
	Figure S12. Neotectonic map of Myanmar-Thailand area, scale 1:500,000
		
13.	2013JB010762-fs13.jpg
	Figure S13. The river flows across the Ban Mauk segment shows about 1-km dextral offset. 
	This is the largest dextral offset identified from the LANDSAT imagery.	The shape of the river valley suggests the slow slip-rate on the Ban Mauk segment.
	
14.	2013JB010762-fs14.jpg
	Figure S14. The largest geomorphic offset feature identified from LANDSAT imagery along the In Daw segment, showing about 4 km dextral offset along the fault.
		
15.	2013JB010762-fs15.jpg
	Figure S15. The 4.1 km geomorphic offset and its restoration along the Daying River fault based on the SRTM dataset. Yellow marker shows the channel features that we matched.	

16.	2013JB010762-fs16.jpg
	Figure S16. The 5-km-long geomorphic offset and its restoration (upper panel) along the Huna fault based on the SRTM dataset.
	Yellow and Black arrows show the geomorphic markers that we matched.	

17.	2013JB010762-fs17.jpg
	Figure S17. The 4-km-long geomorphic offset and its restoration (upper panel) along the Manda fault based on the SRTM dataset.	

18.	2013JB010762-fs18.jpg
	Figure S18. The plausible 1.7 km geomorphic offset and its restoration along the western Ruili fault based on the SRTM dataset.	

19.	2013JB010762-fs19.jpg
	Figure S19. The plausible 0.6-km geomorphic offset and its restoration along the Namkham fault based on the SRTM dataset.	

20.	2013JB010762-fs20.jpg
	Figure S20. The plausible scenarios of geomorphic offset along the Lashio fault based on the SRTM dataset. 
	The upper panel shows the restoration of 6.5 km left-lateral offset, based on matches of bedrock ridges indicated by black arrows.
	The lower panel shows the scenario of 2.5 km left-lateral offset along the Lashio fault. This represents the min. left lateral offset on the Lashio fault. 
	Yellow and black arrows show the possible match of geomorphic features.

21.	2013JB010762-fs21.jpg
	Figure S21. The 2.6 km left-lateral geomorphic offset feature at the Kyaukme fault identified from SRTM data 	

22.	2013JB010762-fs22.jpg
	Figure S22. The 5.5 km left-lateral offset and restoration of the Menglian fault based on the SRTM data. Yellow arrow shows the match of geomorphic feature.	
		
23.	2013JB010762-fs23.jpg
	Figure S23. 10 km left-lateral offset along the JingHong fault based on the SRTM data. Yellow and Black arrows mark the geomorphic features that we matched.	

24.	2013JB010762-fs24.jpg
	Figure S24. 5.8 km lateral offset along the Wan Ha fault based on the SRTM data. Black arrow shows the geomorphic features that we matched.	

25.	2013JB010762-fs25.jpg
	Figure S25. 24-km left-lateral offset along the Mengxig fault based on the offset of the incised river valley	

26.	2013JB010762-fs26.jpg
	Figure S26. The 13-km-long left-lateral offset along the Nam Ma fault near the Myanmar-Thailand boundary based on the SRTM dataset	

27.	2013JB010762-fs27.jpg
	Figure S27. The plausible maximum 4 km left-lateral offset along the western part of the Mae Chan fault based on the SRTM data. 
	Yellow arrows mark the possible matches of the geomorphic features	
		
28.	2013JB010762-fs28.jpg
	Figure S28. The 12.5 km left-lateral offset along the northern part of the Dien Bien Phu fault, Yellow arrows mark the feature that we matched

29.	2013JB010762-fs29.jpg
	Figure S29. The channel deflections along the Mekong river shows plausible maximum 60 km left-lateral offset along the southern part of the Dien Bien Phu fault.	
		
30.	2013JB010762-fs30.jpg
	Figure S30. The revised isoseismal map of 1912 Burma earthquake based on the intensity from Coggin Brown(1914).	

31.	2013JB010762-ts01.pdf 
Table S1. Indian-Burma plate convergent rate along the northern Sunda megathrust from various plate rotation models
1.1 "Vector (1)", Relative Burman-Indian plate motion after removing the Sagaing fault slip rate (18-22 mm/yr) from the assigned Indian-Sunda plate motion model.
1.2 "Vector (2)", Relative Burman-Indian plate motion after removing both the Sagaing fault slip rate (18-22 mm/yr) and the westward motion of the Yunnan block (6 mm/yr) from the assigned Indian-Sunda plate motion model. This plate motion vector is only assigned for the place north of 21ﾟN
1.3 "Vector (3)", Relative Burman-Indian plate motion after removing the spreading rate of central Andaman Sea spreading center (30 mm/yr) from the assigned Indian-Sunda plate motion model. This vector is only assigned for the place south of 15ﾟN.