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Churachandpur-Mao Fault

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Profile perpendicular to Churachandpur-Mao fault (CMF) (approximately east-west at lat 24.5°N) showing fault-parallel site velocity. Dashed curve is simulated velocity profile (root mean square, rms, misfit ∼0.15 mm/yr) due to locking on CMF at rate corresponding to dextral strike-slip motion of 16 ± 0.5 mm/yr. Continuous curve (rms misfit ∼0.08 mm/yr) corresponds to relative motion of 18.6 ± 0.5 mm/yr across Indo-Burmese wedge (IBW), largely accommodated on CMF with very low friction of 0.18. KLF—Kaladan fault; KBF—Kabaw fault. Inset shows partitioning of India Sunda plate motion on CMF in IBW and Sagaing fault (SF).

Profile perpendicular to Churachandpur-Mao fault (CMF) (approximately east-... Available to Purchase

Published: 01 February 2013
Figure 2. Profile perpendicular to Churachandpur-Mao fault (CMF) (approximately east-west at lat 24.5°N) showing fault-parallel site velocity. Dashed curve is simulated velocity profile (root mean square, rms, misfit ∼0.15 mm/yr) due to locking on CMF at rate corresponding to dextral strike-slip
Journal Article

Role of the Kopili Fault in Deformation Tectonics of the Indo‐Burmese Arc Inferred from the Rupture Process of the 3 January 2016 M w 6.7 Imphal Earthquake Available to Purchase

A. P. Singh, N. Purnachandra Rao, M. Ravi Kumar, M.‐C. Hsieh, L. Zhao
Published: 31 January 2017
Bulletin of the Seismological Society of America (2017) 107 (2): 1041–1047.
DOI: https://doi.org/10.1785/0120160276
...‐lateral strike‐slip motion along a N21°W plane, which is confirmed by both waveform fitting and distribution of aftershocks. Interestingly, this earthquake occurred at the intersection of three major faults in this region—the Churachandpur Mao fault bounding the India and Burma plates, the Dauki fault...
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View PDF for article title, Role of the Kopili <span class="search-highlight">Fault</span> in Deformation Tectonics of the Indo‐Burmese Arc Inferred from the Rupture Process of the 3 January 2016 M w 6.7 Imphal Earthquake
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Journal Article

Aseismic plate boundary in the Indo-Burmese wedge, northwest Sunda Arc Available to Purchase

Vineet K. Gahalaut, Bhaskar Kundu, Sunil Singh Laishram, Joshi Catherine, Arun Kumar, M. Devchandra Singh, R.P. Tiwari, R.K. Chadha, S.K. Samanta, A. Ambikapathy, P. Mahesh, Amit Bansal, M. Narsaiah
Journal: Geology
Published: 01 February 2013
Geology (2013) 41 (2): 235–238.
DOI: https://doi.org/10.1130/G33771.1
...Figure 2. Profile perpendicular to Churachandpur-Mao fault (CMF) (approximately east-west at lat 24.5°N) showing fault-parallel site velocity. Dashed curve is simulated velocity profile (root mean square, rms, misfit ∼0.15 mm/yr) due to locking on CMF at rate corresponding to dextral strike-slip...
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View PDF for article title, Aseismic plate boundary in the Indo-Burmese wedge, northwest Sunda Arc
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Nine Years of GPS Measurements of Crustal Deformation at Imphal, Indo-Burmese Wedge Available to Purchase

Laishram Sunil Singh, V. K. Gahalaut, Arun Kumar
Published: 01 May 2014
Jour. Geol. Soc. India (2014) 83 (5): 513–516.
DOI: https://doi.org/10.1007/s12594-014-0078-2
... 36.3±0.5 mm/year towards N55º in the ITRF2008. With respect to the Indian plate it moves at a rate of 16.7 mm/year towards N222º, i.e., predominantly towards southwest. The site is located about 15 km east of the Churachandpur Mao fault (CMF), which is reported to accommodate part of the India-Sunda...
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View PDF for article title, Nine Years of GPS Measurements of Crustal Deformation at Imphal, Indo-Burmese Wedge
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Distribution of relocated (colored circles) earthquakes and remnant located earthquakes &gt;2.8 (open circles) retrieved from the data of the CMGSMO array projected on a geographic map. CMF, Churachandpur–Mao fault; EIBRSZ, Eastern Indo–Burma ranges seismic zone; KBF, Kabaw fault; KF, Kani fault; YUF, Ye–U fault. The color version of this figure is available only in the electronic edition.

Distribution of relocated (colored circles) earthquakes and remnant located... Available to Purchase

Published: 06 July 2023
Figure 3. Distribution of relocated (colored circles) earthquakes and remnant located earthquakes >2.8 (open circles) retrieved from the data of the CMGSMO array projected on a geographic map. CMF, Churachandpur–Mao fault; EIBRSZ, Eastern Indo–Burma ranges seismic zone; KBF, Kabaw fault; KF
Image
General tectonics in the Indo-Burmese region. Colour circles denote the earthquakes with depth (shallowest, 0-25 km, with yellow colour, and the deepest, 125-150 km, with blue color). The red arrow shows the velocity of the Imphal (IMPH) in ITRF2008 and pink arrow shows velocity in Indian reference frame. CMF-Churachandpur Mao fault. Right panel shows the permanent GPS site at IMPH.

General tectonics in the Indo-Burmese region. Colour circles denote the ear... Available to Purchase

Published: 01 May 2014
reference frame. CMF-Churachandpur Mao fault. Right panel shows the permanent GPS site at IMPH.
Image
Location map showing the eastern Himalayas, Indo-Burman Ranges, Bengal Basin, and location of IODP 354 (U1451A) drill hole. Topography, bathymetry, bathymetric contours, and river layers were generated with GeoMapApp (www.geomapapp.org). Yellow box shows the location of the study area. Plate-boundary structures are shown with a heavy black line, and upper-plate structures (after Betka et al. 2018a and references therein) are shown with thin black lines. Abbreviations: GBD, Ganges–Brahmaputra Delta; IBR, Indo-Burman Ranges; MFT, Main Frontal Thrust; SF, Sagaing fault; KF, Kabaw fault; CMF, Churachandpur–Mao fault; TF, Tut fault, NF, Nicobar Fan.

Location map showing the eastern Himalayas, Indo-Burman Ranges, Bengal Basi... Available to Purchase

Published: 17 November 2020
; CMF, Churachandpur–Mao fault; TF, Tut fault, NF, Nicobar Fan.
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Tectonic map of NE India (modified after Nandi, 2001, Kayal and De, 1991 and GSI). Map showing MBT, Main Boundary Thrust; MCT, Main Central Thrust; Mishmi Thrust; Naga Thrust; Lohit Thrust; DF, Dauki fault; IBFT, Indo-Burma Frontal Thrust; Kopili fault; CMF, Churachandpur-Mao fault; OF, Oldham Fault; DF, Dudhnoi Fault; Mat Fault; GM, Gomti Fault; BL, Bomdila Lineament; BSZ, Barapani Shear Zone; HZ, Eocene Hing Zone. Four distinct tectonic domain (i) Eastern Himalayan mobile belt; (ii) Mishmi Hill block; (iii) Meghalaya- Mikir Hill block and (iv) Patkai- Naga – Chin – Arakan –Yoma (Indo-Myanmar) mobile belt. Map is showing location of the epicentre of major seismic events from 1869 to 2016, (7.0 M-8.0 M), two great events (&gt;8.0M) and red star, 6.7M, Manipur earthquake, recent. Two major linear features/hidden faults within the blue box, trending NW-SE (L1) extension of Kopili fault and ENE-WSW (L2) is the probable source of the present event.

Tectonic map of NE India (modified after Nandi, 2001, Kayal and De, 1991 ... Available to Purchase

Published: 01 August 2023
Fig.1. Tectonic map of NE India (modified after Nandi, 2001, Kayal and De, 1991 and GSI). Map showing MBT, Main Boundary Thrust; MCT, Main Central Thrust; Mishmi Thrust; Naga Thrust; Lohit Thrust; DF, Dauki fault; IBFT, Indo-Burma Frontal Thrust; Kopili fault; CMF, Churachandpur-Mao fault
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Focal mechanisms of earthquakes in this study (a)  within the overriding Myanmar plate and Shan–Thai block (centroid depth &gt;40 km) and (b) within the subducting Indian plate (centroid depth &gt;40 km). The black dashed boxes indicate thrust earthquakes close to the Sagaing fault. The black solid box indicates earthquakes at lower crust to uppermost mantle depths. Focal mechanisms of earthquakes within the Indian plate (centroid depth &gt;40 km). Note the different depth color scales in each panel. Tectonic faults are plotted as black lines (Wang et al., 2014), and red triangles indicate locations of volcanoes and lava fields. The black arrows show the motion of India relative to the Shan–Thai block in mm/yr (Mallick et al., 2019). The red contours indicate depth to the top of Indian slab estimated from slab2. Cross‐section profiles (A–A′ to H–H′) are shown in Figure 8. ADB, Ayeyarwaddy delta basin; BYB, Bago Yoma basin; BYR, Bago Yoma range; CMf, Churachandpur Mao fault; Kyf, Kyaukkyan fault; MPf, Mae Ping fault; Nf, Nanting fault; PB, Pyay basin; SB, Shwebo basin; and WPA, Wuntho‐Popa arc.

Focal mechanisms of earthquakes in this study (a)  within the overriding My... Available to Purchase

Published: 04 January 2023
, Ayeyarwaddy delta basin; BYB, Bago Yoma basin; BYR, Bago Yoma range; CMf, Churachandpur Mao fault; Kyf, Kyaukkyan fault; MPf, Mae Ping fault; Nf, Nanting fault; PB, Pyay basin; SB, Shwebo basin; and WPA, Wuntho‐Popa arc.
Image
Regional tectonics and Global Positioning System (GPS) velocity map. (a) Topography and regional map. The red arrows represent GPS‐measured surface velocities relative to the eastern Burma microplate, realized by minimizing the velocities of stations between the Churachandpur Mao fault (CMF) and Sagaing fault (SF; Mallick et al., 2019). The white circles with black perimeters are the GPS station locations in the reference block. The velocity vectors (red arrows) are centered at the station locations. The blue arrows represent the plate motions relative to the eastern Burma microplate obtained from an elastic block model by Mallick et al. (2019). The thick gray lines are the slab depth contours extracted from SLAB2.0 (Hayes et al., 2018). The black lines are faults from Wang et al. 2014. The white dashed rectangle indicates the extent of the study region where stress inversions were performed. (b) The studied earthquakes used for the stress inversion in this study. Note that some of the Hurukawa et al. (2012) events are the same as International Seismological Centre (ISC) and Global Centroid Moment Tensor (Global CMT) catalogs. We plot those events in Hurukawa et al. (2012) group instead, because they are the same events. The black lines are faults (Wang et al., 2014). The dark gray, thick dashed line represents the boundary line separating north and south used in the earthquake division for latitudinal range domain (A2). The color version of this figure is available only in the electronic edition.

Regional tectonics and Global Positioning System (GPS) velocity map. (a) To... Available to Purchase

Published: 08 February 2022
Figure 1. Regional tectonics and Global Positioning System (GPS) velocity map. (a) Topography and regional map. The red arrows represent GPS‐measured surface velocities relative to the eastern Burma microplate, realized by minimizing the velocities of stations between the Churachandpur Mao fault
Image
(A) Inferred tectonic setting and melting model for southwestern Yunnan Quaternary volcanism. (B) Tomographic image from Li et al. (2008). Upwelling of hot and fresh Indian asthenosphere is triggered by a slab window resulting from slab detachment of the Indian oceanic lithosphere from the Indian continental lithosphere. Continuous input and lateral flow of upwelling Indian asthenosphere triggered the Quaternary magma eruption of central Myanmar basin by decompression melting and heating the overlying asthenospheric layer and metasomatically enriched continental lithospheric mantle (MCLM; Lee et al., 2016; Zhang et al., 2020b). On the other hand, hydrous melts derived from the mantle transition zone migrated upward, creating a low-velocity layer atop the 410 km discontinuity (Sakamaki et al., 2006; Tauzin et al., 2010). Mantle convection and the density contrast between the hydrous melts and ambient minerals collectively provide positive buoyancy for the consequent upwelling of the hydrous melts from the low-velocity layer. Continued upwelling and percolation of these hydrous melts will fertilize the shallow mantle peridotite and function as the heat source to cause the low degree of melting of previously metasomatized asthenospheric or lithospheric mantle or even continental crust, which triggered Quaternary volcanism in the SE Tibetan Plateau. Regional late Neogene–Quaternary tectonic activities are characterized by strike-slip and normal faults, which may function as channels for the upward migration of magmas and heat to enhance volcano flare-ups on such a large scale. CMF—Churachandpur–Mao Fault; DYJF—Dayingjiang Fault; JLF—Jiali Fault; KBF—Kabaw Fault; KLDF—Kaladan Fault; L—ocean lithospheric mantle; LOC—lower oceanic crust; LRF—Longling-Ruili Fault; MBT—Main Boundary Thrust; MCLM—metasomatically enriched continental lithospheric mantle; NJF—Nujiang Fault; NTF—Nanting Fault; PB—Pingbian volcano; PE—Pu’er volcano; RRF—Red River Fault; SGF—Sagaing Fault; TC—Tengchong volcano; TG—Tongguan volcano; UOC—upper oceanic crust; XSH-XJF—Xianshuihe-Xiaojiang Fault.

(A) Inferred tectonic setting and melting model for southwestern Yunnan Qua... Available to Purchase

Published: 08 August 2024
function as channels for the upward migration of magmas and heat to enhance volcano flare-ups on such a large scale. CMF—Churachandpur–Mao Fault; DYJF—Dayingjiang Fault; JLF—Jiali Fault; KBF—Kabaw Fault; KLDF—Kaladan Fault; L—ocean lithospheric mantle; LOC—lower oceanic crust; LRF—Longling-Ruili Fault; MBT
Journal Article

Building resilience to earthquakes and landslides in Aizawl, India Available to Purchase

Janise Rodgers, Thomas Tobin
Journal: The Leading Edge
Published: 01 December 2014
The Leading Edge (2014) 33 (12): 1364–1370.
DOI: https://doi.org/10.1190/tle33121364.1
... of Experts (WCE), National Disaster Management Authority, Government of India . Kumar A. , Sanoujam M. , Sunil L. , and Dolendro T. , 2011 , Active deformations at the Churachandpur Mao fault (CMF) in Indo Burma Ranges: Multidisciplinary evidences : International Journal...
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Stress Orientations and Driving Forces in the Indo‐Burma Plate Boundary Zone Available to Purchase

Patcharaporn Maneerat, Douglas S. Dreger, Roland Bürgmann
Published: 08 February 2022
Bulletin of the Seismological Society of America (2022) 112 (3): 1323–1335.
DOI: https://doi.org/10.1785/0120210303
...Figure 1. Regional tectonics and Global Positioning System (GPS) velocity map. (a) Topography and regional map. The red arrows represent GPS‐measured surface velocities relative to the eastern Burma microplate, realized by minimizing the velocities of stations between the Churachandpur Mao fault...
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View PDF for article title, Stress Orientations and Driving Forces in the Indo‐Burma Plate Boundary Zone
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M w 6.7 Earthquake of Manipur, NE India: Some Insights Available to Purchase

Arun Kumar, Manichandra Sanoujam, L. Someshwar Roy, L. Kosigyn, W. Arun Kumar Singh, Ajeet P. Pandey
Published: 01 July 2016
Jour. Geol. Soc. India (2016) 88 (1): 5–12.
DOI: https://doi.org/10.1007/s12594-016-0452-3
... Society of India 2016 Geological Society of India The NE region is traversed by several major faults with well recognised strike-slip faults such as Sagaing faults (Burma), Dauki fault in Meghalaya, Kopili fault in Assam, Churachandpur-Mao fault (CMF) in Manipur and Eastern Boundary thrust...
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CSIR-National Geophysical Research Institute – 60 Years of Enduring Scientific Contributions Available to Purchase

V. M. Tiwari
Published: 01 October 2020
Jour. Geol. Soc. India (2020) 96 (4): 319–324.
DOI: https://doi.org/10.1007/s12594-020-1560-7
... expanded the geodetic studies by installing campaign mode GPS networks in the NE India, the Andaman and the Himalayas, which led to the discovery of a plate boundary fault, referred as Churachandpur Mao Fault and understanding of the deformation cycle through large earthquakes. Paleoseismology...
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View PDF for article title, CSIR-National Geophysical Research Institute – 60 Years of Enduring Scientific Contributions
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Active Faults Revealed and New Constraints on Their Seismogenic Depth from a High‐Resolution Regional Focal Mechanism Catalog in Myanmar (2016–2021) Available to Purchase

Wardah Fadil, Shengji Wei, Kyle Bradley, Yu Wang, Yumei He, Eric Sandvol, Bor‐Shouh Huang, Judith Hubbard, Myo Thant, Yin Myo Min Htwe
Published: 04 January 2023
Bulletin of the Seismological Society of America (2023) 113 (2): 613–635.
DOI: https://doi.org/10.1785/0120220195
..., Ayeyarwaddy delta basin; BYB, Bago Yoma basin; BYR, Bago Yoma range; CMf, Churachandpur Mao fault; Kyf, Kyaukkyan fault; MPf, Mae Ping fault; Nf, Nanting fault; PB, Pyay basin; SB, Shwebo basin; and WPA, Wuntho‐Popa arc. ...
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View PDF for article title, Active <span class="search-highlight">Faults</span> Revealed and New Constraints on Their Seismogenic Depth from a High‐Resolution Regional Focal Mechanism Catalog in Myanmar (2016–2021)
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Macroseismic Study of 4 th January 2016, Manipur Earthquake, and its Implications Available to Purchase

Harish Kumar, L.H. Moirangcha, W.S. Rocky, B.R. Syngai, E. Mohanraj, M. Mudi
Published: 01 August 2023
Jour. Geol. Soc. India (2023) 99 (8): 1094–1102.
DOI: https://doi.org/10.1007/s12594-023-2435-5
...Fig.1. Tectonic map of NE India (modified after Nandi, 2001, Kayal and De, 1991 and GSI). Map showing MBT, Main Boundary Thrust; MCT, Main Central Thrust; Mishmi Thrust; Naga Thrust; Lohit Thrust; DF, Dauki fault; IBFT, Indo-Burma Frontal Thrust; Kopili fault; CMF, Churachandpur-Mao fault...
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New Insight into the Subducted Indian Plate beneath Central Myanmar Based on Seismic Activity and Focal Mechanisms Analysis Available to Purchase

Chit Thet Mon, Shun Yang, Changfeng Ren, Yumei He, Myo Thant, Kyaing Sein
Published: 06 July 2023
Seismological Research Letters (2023) 94 (5): 2337–2347.
DOI: https://doi.org/10.1785/0220220381
...Figure 3. Distribution of relocated (colored circles) earthquakes and remnant located earthquakes >2.8 (open circles) retrieved from the data of the CMGSMO array projected on a geographic map. CMF, Churachandpur–Mao fault; EIBRSZ, Eastern Indo–Burma ranges seismic zone; KBF, Kabaw fault; KF...
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View PDF for article title, New Insight into the Subducted Indian Plate beneath Central Myanmar Based on Seismic Activity and Focal Mechanisms Analysis
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Investigation of Tombinoutek Landslide, Old Cachhar Road, Manipur, India Available to Purchase

H. S. Rajkumar, S. S. Heisnam, J. S. Kongbrailatpam, O. Moirangthem
Published: 01 February 2023
Jour. Geol. Soc. India (2023) 99 (2): 156–164.
DOI: https://doi.org/10.1007/s12594-023-2281-5
... to the regional Churachandpur-Mao thrust. Presence of the five joint sets is significant evidence for the structural control of the landside. (iv) The moderately weathered and jointed shales, with SMR value 46.5 (IIIb partially stable), may indicate possibility to act as slip surface during the time of heavy...
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Constraining Plate Motion and Crustal Deformation from GNSS Measurements: CSIR-NGRI Contribution Available to Purchase

S.K. Rajewar, Ch. Mohana Lakshmi, Aditya Mohanty, Dwijendra N. Pandey, Anshuman Pandey, Anurag Chaurasia, Ananya Pandey, V. Rajeswar Rao, M.S. Naidu, Amit Kumar, Saroj K Mondal, Rajeev K Yadav, J.K. Catherine, R.K. Giri, V.K. Gahalaut
Published: 01 November 2021
Jour. Geol. Soc. India (2021) 97 (10): 1207–1213.
DOI: https://doi.org/10.1007/s12594-021-1850-8
... by CSIR-NGRI in 2004 with the establishment of 23 survey-mode and 5 permanent GNSS sites ( Fig.1a ). The analysis of these measurements and the seismicity of the IBW ( Kundu and Gahalaut, 2012 ; Gahalaut et al., 2013 and Kundu and Gahalaut, 2013 ) suggest that the steeply dipping Churachandpur-Mao...
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