FENG Lujia

Research:

I study active crustal deformation caused by earthquake-related and volcanic processes. To measure crustal deformation precisely, I mainly use high-precision geodetic methods like the Global Positioning System (GPS) and Interferometric Synthetic Aperture Radar (InSAR), which I complement with lower-precision coral and land elevation change data. Based on the data I obtain, I develop both forward and inversion models for deformation that occurs before, during and after earthquakes and during volcanic unrest. The models I create help me better understand earthquake-related and volcanic processes that cause crustal deformation. My current research mostly focuses on the crustal deformation in the Sumatran and Costa Rican subduction zones. Additionally, I have worked on volcanic deformation in large silicic caldera systems, e.g., Long Valley Caldera and Santorini Caldera.

Education:

2011 Ph.D., Geophysics, Georgia Institute of Technology, USA
2006 M.S., Structural Geology, Zhejiang University, China
2004 B.S., Geology, Zhejiang University, China

Professional Activities:

2010-2012 Student Representative to Tectonophysics Section, AGU, USA

Honours and Awards:

2012 Research Excellence Award, Department of Earth and Atmospheric Sciences, Georgia Institute of Technology, USA
2009 Outstanding Student Paper Award, Tectonophysics Section, American Geophysical Union Fall Meeting, USA
2008 Best Poster Award, Graduate Student Symposium, Department of Earth and Atmospheric Sciences, Georgia Institute of Technology, USA
2004 Outstanding Graduate Honor, Zhejiang Province, China
2004 Outstanding Graduate Honor, Zhejiang University, China
2004 Best Undergraduate Thesis Award, Zhejiang University, China

Publications:

Bradley, K. E., Feng L., Hill E. M., & Natawidjaja D. H. (Submitted). Sumatran Fault slip rates imply a rigid forearc and shortening of Indian Ocean lithosphere. Nature.
Qiu, Q., Moore J. D. P., Barbot S., Feng L., & Hill E. M. (2018). Transient rheology of the Sumatran mantle wedge revealed by a decade of great earthquakes. Nature Communications. 9(995),
Shi, X., Wang Y., Sieh K. E., Weldon, II R. J., Feng L., Chan C-H., et al. (2018). Fault Slip and GPS Velocities Across the Shan Plateau Define a Curved Southwestward Crustal Motion Around the Eastern Himalayan Syntaxis. Journal of Geophysical Research: Solid Earth.
Bradley, K. E., Feng L., Hill E. M., Natawidjaja D. H., & Sieh K. E. (2017). Implications of the diffuse deformation of the Indian Ocean lithosphere for slip partitioning of oblique plate convergence in Sumatra. Journal of Geophysical Research: Solid Earth. 122(1), 572-591.
Morgan, P. M., Feng L., Meltzner A. J., Lindsey E. O., Tsang L. L. H., & Hill E. M. (2017). Sibling earthquakes generated within a persistent rupture barrier on the Sunda megathrust under Simeulue Island. Geophysical Research Letters. 44, 2159–2166.
Moore, J. D. P., Yu H., Tang C-H., Wang T., Barbot S., Peng D., et al. (2017). Imaging the distribution of transient viscosity after the 2016 M-w 7.1 Kumamoto earthquake. Science. 356(6334), 163-167.
Salman, R., Hill E. M., Feng L., Lindsey E. O., Veedu D. M., Barbot S., et al. (2017). Piecemeal rupture of the Mentawai patch, Sumatra: The 2008 Mw 7.2 North Pagai earthquake sequence. Journal of Geophysical Research.
Feng, L., Barbot S., Hill E. M., Hermawan I., & Banerjee P. (2016). Footprints of past earthquakes revealed in the afterslip of the 2010 Mw 7.8 Mentawai tsunami earthquake. Geophysical Research Letters. 43(18), 9518–9526.
Qiu, Q., Hill E. M., Barbot S., Hubbard J., Feng W., Lindsey E. O., et al. (2016). The Mechanism of Partial rupture of a Locked Megathrust: The Role of Fault Morphology. Geology.
Masuti, S., Barbot S., Karato S-ichiro., Feng L., & Banerjee P. (2016). Upper Mantle Water Stratification Inferred From the 2012 Mw 8.6 Indian Ocean Earthquake. Nature.
Hu, Y., Bürgmann R., Banerjee P., Feng L., Hill E. M., Ito T., et al. (2016). Asthenosphere rheology inferred from observations of the 2012 Indian Ocean earthquake. Nature.
Tsang, L. L. H., Hill E. M., Barbot S., Qiu Q., Feng L., Hermawan I., et al. (2016). Afterslip following the 2007 M-w 8.4 Bengkulu earthquake in Sumatra loaded the 2010 M-w 7.8 Mentawai tsunami earthquake rupture zone. Journal of Geophysical Research: Solid Earth. 121(12), 9034-9049.
Steckler, M. S., Mondal D R., Akhter S. Humayun, Seeber L., Feng L., Gale J., et al. (2016). Locked and loading megathrust linked to active subduction beneath the Indo-Burman Ranges. Nature Geoscience. 9(8),
Feng, L., Hill E. M., Banerjee P., Hermawan I., Tsang L. L. H., Natawidjaja D. H., et al. (2015). A unified GPS-based earthquake catalog for the Sumatran plate boundary between 2002 and 2013. Journal of Geophysical Research: Solid Earth. 120(5), 3566-3598.
Xue, L., Schwartz S. Y., Liu Z., & Feng L. (2015). Interseismic megathrust coupling beneath the Nicoya Peninsula, Costa Rica, from the joint inversion of InSAR and GPS data. Journal of Geophysical Research: Solid Earth. 120(5), 3707-3722.
Feng, L., Hill E. M., Elósegui P., Qiu Q., Hermawan I., Banerjee P., et al. (2015). Hunt for slow slip events along the Sumatran subduction zone in a decade of continuous GPS data. Journal of Geophysical Research-Solid Earth. 120(12), 8623-8632.
Hill, E. M., Yue H., Barbot S., Lay T., Tapponnier P., Hermawan I., et al. (2015). The 2012 Mw 8.6 Wharton Basin sequence: A cascade of great earthquakes generated by near‐orthogonal, young, oceanic‐mantle faults. Journal of Geophysical Research: Solid Earth. 120(5), 3723–3747.
Protti, M., González V., Newman A. V., Dixon T. H., Schwartz S. Y., Marshall J. S., et al. (2014). Nicoya earthquake rupture anticipated by geodetic measurement of the locked plate interface. Nature Geoscience. 7(2), 117–121.
MacPherson, K. A., Hidayat D., Feng L., & Goh S H. (2013). Crustal thickness and velocity structure beneath Singapore's seismic network. Journal of Asian Earth Sciences. 64, 245-255.
Stiros, S. C., Moschas F., Feng L., & Newman A. V. (2013). Long-term versus short-term deformation of the meizoseismal area of the 2008 Achaia-Elia (MW 6.4) earthquake in NW Peloponnese, Greece: Evidence from historical triangulation and morphotectonic data. Tectonophysics. 592, 150-158.
Newman, A. V., Stiros S. C., Feng L., Psimoulis P., Moschas F., Saltogianni V., et al. (2012). Recent geodetic unrest at Santorini Caldera, Greece. Geophysical Research Letters. 39, L06309.
Feng, L., Newman A. V., Protti M., González V., Jiang Y., & Dixon T. H. (2012). Active deformation near the Nicoya Peninsula, northwestern Costa Rica, between 1996 and 2010: Interseismic megathrust coupling. Journal of Geophysical Research: Solid Earth. 117, B06407.
Newman, A. V., Feng L., Fritz H. M., Lifton Z. M., Kalligeris N., & Wei Y. (2011). The energetic 2010 MW 7.1 Solomon Islands tsunami earthquake. Geophysical Journal International. 186, 775-781.
Feng, L., Newman A. V., Farmer G. T., Psimoulis P., & Stiros S. C. (2010). Energetic rupture, coseismic and post-seismic response of the 2008 MW 6.4 Achaia-Elia Earthquake in northwestern Peloponnese, Greece: an indicator of an immature transform fault zone. Geophysical Journal International. 183, 103-110.
Chen, T., Newman A. V., Feng L., & Fritz H. M. (2009). Slip distribution from the 1 April 2007 Solomon Islands earthquake: A unique image of near-trench rupture. Geophysical Research Letters. 36, L16307.
Feng, L., & Newman A. V. (2009). Constraints on continued episodic inflation at Long Valley Caldera, based on seismic and geodetic observations. Journal of Geophysical Research: Solid Earth. 114, B06403.

Publications:

Salman, R., Lindsey E. O., Lin Y-N N., Feng L., Bradley K., & Hill E. M. (2018). Investigating active deformation of the northern Sumatran Fault using InSAR data. European Geosciences Union.
Moore, J. D. P., Yu H., Tang C-H., Wang T., Barbot S., Peng D., et al. (2017). Postseismic deformation following the 2015 Mw 7.8 Gorkha earthquake and the distribution of brittle and ductile crustal processes beneath Nepal. European Geosciences Union General Assembly 2017.
Peng, D., Barbot S., Wang T., Feng L., & Moore J. D. P. (2017). Seven years of postseismic deformation following the 2009 Mw 7.8 Dusky Sound earthquake from GPS, InSAR and dynamic models. European Geosciences Union General Assembly 2017.
Moore, J. D. P., Yu H., Tang C-H., Barbot S., Peng D., Masuti S., et al. (2017). Imaging the distribution of transient viscosity following the 2016 Mw7.1 Kumamoto earthquake. Japan Geoscience Union - American Geophysical Union Joint Meeting 2017.
Salman, R., Hill E. M., Wei S., Lindsey E. O., Bradley K., Muzli, et al. (2017). Analysis of the 2016 Aceh Mw 6.5 strike-slip earthquake using joint inversion of InSAR and tele seismic data. Asia Oceania Geosciences Society 14th Annual Meeting.
Salman, R., Hill E. M., Feng L., Wei S., Barbot S., Lindsey E. O., et al. (2016). The 2008 Mw 7.2 North Pagai earthquake sequence: Partial rupture of a fully locked Mentawai patch. 6th International Symposium on Earth Hazard and Disaster Mitigation.
Moore, J. D. P., Yu H., Tang C-H., Wang T., Barbot S., Peng D., et al. (2016). Kinematic inversion of postseismic deformation following the 2016 Mw 7.0 Kumamoto earthquake for the distribution of brittle and ductile crustal processes. American Geophysical Union Fall Meeting.
Qiu, Q., Moore J. D. P., Barbot S., Feng L., Hill E. M., & Ezer T. (2016). Transient flow in the mantle wedge in the last decade following great earthquakes in the Sumatran subduction zone. American Geophysical Union Fall Meeting.
Xuan, C., Lambert V., Masuti S., Barbot S., Moore J. D. P., Tang C-H., et al. (2016). Joint inversion of afterslip and viscoelastic relaxation following the 2012 Mw 8.6 Indian Ocean earthquake. American Geophysical Union Fall Meeting.
Moore, J. D. P., Lambert V., Feng L., Lindsey E. O., & Barbot S. (2016). Postseismic Deformation Following the 2015 Mw 7.8 Gorkha Earthquake and the Distribution of Brittle and Ductile Crustal Processes Beneath Nepal. Asian Oceania Geosciences Society.
Salman, R., Hill E. M., Feng L., Wei S., Barbot S., Lindsey E. O., et al. (2016). The 2008 Mw 7.2 North Pagai earthquake sequence: Partial rupture of a fully locked Mentawai patch. American Geophysical Union Fall Meeting.
Salman, R., Hill E. M., Barbot S., Feng L., Banerjee P., Hermawan I., et al. (2014). The 2008 Mw 7.2 North Pagai earthquake sequence and its relationship to ruptured and unruptured parts of the Mentawai patch. American Geophysical Union Fall Meeting.

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