Revathy M. Parameswaran
Revathy M. Parameswaran
Angarita, M., Grapenthin, R., Tan, T., Saunders-Shultz, P., Girona, T., Parameswaran, R.M., Lopez, T. M., Izbekov, P. E., Fee, D., Burgos, B., Moshrefzadeh, J. A., Shreve, T., Larsen, J. F., (2026). Multidisciplinary perspectives on Shishaldin Volcano: An open-system, deforming volcano. (Accepted) Bulletin of Volcanology.
Parameswaran, R.M., Thorbjarnardóttir, B.S., and Bjarnason, I.T., (2023) Evolution of stresses over Conjugate Faults in Ölfus, South Iceland. Journal of Geophysical Research: Solid Earth. e2022JB026201. pdf
Parameswaran, R.M., Grapenthin, R., West, M.E., and Fozkos, A., (2023). Interchangeable use of GNSS and seismic data for rapid earthquake characterization: 2021 Chignik earthquake, Alaska. Seismological Research Letters. 94 (3), 1367-1378. pdf
Elliott, J., Grapenthin, R., Parameswaran, R.M., Xiao, Z., Freymueller, J.T. and Fusso, L., (2022). Cascading Rupture of a Megathrust. Science Advances. 8(18), p.eabm4131. pdf
Parameswaran, R.M., Thorbjarnardóttir, B.S., Stefánsson, R. and Bjarnason, I.T. (2020) Seismicity on Conjugate Faults in Ölfus, South Iceland: Case study of the 1998 Hjalli-Ölfus earthquake. Journal of Geophysical Research: Solid Earth, 125 (8) p.e2019JB019203. pdf
Parameswaran, R.M., K. Rajendran, S.N. Somala, and C.P. Rajendran (2020). The 2012 Mw 8.6 Indian Ocean earthquake: Deep nucleation on a listric-like fault. Physics of the Earth and Planetary Interiors. 307, p.106550. pdf
Rajendran, K., Parameswaran, R.M., and Rajendran, C.P., (2018). Revisiting the 1991 Uttarkashi and the 1999 Chamoli, India, earthquakes: Implications of rupture mechanisms in the central Himalaya. Journal of Asian Earth Sciences, 162, pp.107-120. pdf
Rajendran, K., Parameswaran, R. M., and Rajendran, C. P. (2017). Seismotectonic perspectives on the Himalayan arc and contiguous areas: Inferences from past and recent earthquakes. Earth Science Reviews. 173, pp.1-30. https://doi.org/10.1016/j.earscirev.2017.08.003. pdf
Mallick, R., Parameswaran, R. M., and Rajendran, K. (2017). The 2005 and 2010 earthquakes on the Andaman Sumatra trench: evidence for post megathrust intra-plate rejuvenation. Bulletin of the Seismological Society of America. doi: 10.1785/0120160147. pdf
Parameswaran, R.M., and Rajendran, K., (2016). The 2016 Mw 6.7 Imphal Earthquake in the Indo-Burman Range: A Case of Continuing Intraplate Deformation within the Subducted Slab. Bulletin of the Seismological Society of America. doi: 10.1785/0120160102. pdf
Parameswaran, R. M., and Rajendran, K. (2016). Structural context of the 2015 pair of Nepal earthquakes (Mw 7.8 and Mw 7.3): an analysis based on slip distribution, aftershock growth, and static stress changes. International Journal of Earth Sciences, 1-14. http://dx.doi.org/10.1016/j.jseaes.2015.07.030. pdf
Parameswaran, R. M., Natarajan, T., Rajendran, K., Rajendran, C. P., Mallick, R., Wood, M., and Lekhak, H. C. (2015). Seismotectonics of the April-May 2015 Nepal earthquakes: An assessment based on the aftershock patterns, surface effects and deformational characteristics. Journal of Asian Earth Sciences, 111, 161-174. doi:10.1007/s00531-016-1358-4. pdf
Grapenthin, R., Xiao, Z., Elliott, J., Parameswaran, R. M., Freymueller, J.T., Nicolsky, D., Wei, S. S.., Abers, G. A., (202x). A triggered tsunami earthquake: The 2020 Mw7.6 Sand Point, Alaska, sequence (Seismica: under review)
Angarita, M., Grapenthin R., Parameswaran, R.M., Lyons, J., (202x). Partial depressurization of Semisopochnoi volcano, Alaska, during the 2014-2023 recharge and eruption.
Parameswaran, R.M.*, and Grapenthin, R., (2025) Short-term and decadal effects of topography and glacial loads on Westdahl volcano, Alaska. G13C-0282, AGU Fall Meeting 2025, New Orleans; 15-19 December 2025.
Grapenthin, R., Parameswaran, R.M.*, Xiao, Z., Nicolsky, D., Wei, S. S., Elliott, J., Freymueller, J.T., Abers, J. A., and Zhu, H., (2025) Late Triggered Megathrust slip following the 2020 Mw7.6 Sand Point Alaska Strike-Slip Earthquake Could Explain its Tsunami. T43B-07, AGU Fall Meeting 2025, New Orleans; 15-19 December 2025.
Twomey, I.*$, Parameswaran, R.M., Angarita, M., and Grapenthin, R., (2025) Characterizing and Modeling Opposing Deformation at Westdahl Volcano and Fisher Caldera on Unimak Island, Alaska from 1992 to 2009. G13C-0275, AGU Fall Meeting 2025, New Orleans; 15-19 December 2025.
Brant, A.$, Parameswaran, R.M.*, Angarita, M., and Grapenthin, R., (2025) Reversal in Deformation Signal at Aniakchak Volcano in Alaska following the 2021 Mw 8.2 Chignik earthquake. G13C-0281, AGU Fall Meeting 2025, New Orleans; 15-19 December 2025.
Angarita, M.*, Grapenthin, R., and Parameswaran, R.M., (2025) Tectonic and morphological responses to magma source pressurization during the 2023 Shishaldin eruption. G13C-0272, AGU Fall Meeting 2025, New Orleans; 15-19 December 2025.
Parameswaran, R.M.*, Grapenthin, R., Freymueller, J. T., and Elliott, J., (2024) Stress-changes due to the 2018 Mw 7.9 Kodiak intraslab earthquake on the Aleutian megathrust. T51C-3163, AGU Fall Meeting 2024, Washington D.C., 9-13 December 2024.
Twomey, I.*$, Parameswaran, R.M., and Grapenthon, R., (2024) Deformation Modeling for Westdahl Volcano at Unimak Island (Alaska) from 1992-2009. G43A-3512, AGU Fall Meeting 2024, Washington D.C., 9-13 December 2024.
Boonsue, D.*$, Parameswaran, R.M., and Grapenthon, R., (2024) Role of Gravitational Load on Deformation at Westdahl Volcano at Unimak Island, Alaska. G43A-3513, AGU Fall Meeting 2024, Washington D.C., 9-13 December 2024.
Parameswaran, R.M.* and R. Grapenthin, (2024) What Has Unimak Island in Alaska Witnessed in the Last ~30 Years? – a Seismic Recap. #11408, SSA Annual Meeting 2024, Anchorage.
Parameswaran, R.M.,* and Grapenthin, R., (2023) Catalog of Rapidly Characterized Earthquakes using Instantaneous GNSS Velocities. S51E-0256, AGU Fall Meeting 2023, San Francisco.
Grapenthin, R.*, Parameswaran, R.M., Angarita, M., Cheng, Y., Shreve, T., Power, J. A., Haney, M. M., Saunders-Shultz, P., Lopez, T. M., Elliott, J. L., & Freymueller, J. T. (2023). Magmatic intrusion at Aniakchak Caldera, Alaska, related to the 2021 M8.2 Chignik earthquake? AGU Fall Meeting 2023, San Francisco.
Ferrand, T. P.*, Eberhard, L., Gilio, M., and Parameswaran,R.M., (2023): Transdisciplinary connections help understand natural mechanisms behind major seismic ruptures, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-10076, https://doi.org/10.5194/egusphere-egu23-10076
Grapenthin, R., Xiao, Z., Elliott, J.*, Nicolsky, D., Parameswaran, R.M., Wei, S. S., Freymueller, J.T., (2022). Did the Megathrust Slip during the 2020 M7.6 Sand Point, Alaska, Strike-Slip Earthquake?. In AGU Fall Meeting 2022. AGU.
Parameswaran, R.M.*, Grapenthin, R., West, M.E., and Fozkos, A., (2022). Reconciling Seismic and Geodetic Magnitude Estimates for Rapid Earthquake Characterization. Seismological Society of America (SSA) Annual Meeting 2022, 19.-23. Apr., 2022, Bellevue, WA, USA.
Elliott, J.*, Grapenthin, R., Parameswaran, R.M., Xiao, Z., Freymueller, J.T. and Fusso, L., (2022). Earthquakes, Interseismic Coupling and Stress Triggering Along the Eastern Alaska Subduction Margin. Seismological Society of America (SSA) Annual Meeting 2022, 19.-23. Apr., 2022, Bellevue, WA, USA.
Grapenthin, R., Elliott, J. L.*, Xiao, Z., Parameswaran, R. M., Freymueller, J.T., Suleimani, E., and Nicolsky, D., (2022). The 2020 M7.6 Sand Point Alaska Earthquake: Slip Model, Stress Change Contributions and Tsunami Implications. Seismological Society of America (SSA) Annual Meeting 2022, 19.-23. Apr., 2022, Bellevue, WA, USA.
Parameswaran, R.M.*, and Grapenthin, R. (2021). Rapid Earthquake Characterization of the 2021 Mw 8.2 Chignik Earthquake using GNSS Instantaneous Velocities. In AGU Fall Meeting 2021. In AGU Fall Meeting 2021. AGU.
Parameswaran, R.M.*, Grapenthin, R., Gardine, M., and West, M.E. (2021). Rapid Earthquake Characterization of the 2021 Mw 8.2 Chignik Earthquake using GNSS Instantaneous Velocities. In AGU Fall Meeting 2021. AGU
Elliott, J.*, Grapenthin, R., Parameswaran, R.M., Xiao, Z., Freymueller, J.T. and Fusso, L., (2021). Stress Triggering and Megathrust Cascades Along the Eastern Alaska Subduction Margin. In AGU Fall Meeting 2021. AGU.
Parameswaran, R.M.*, I. Th. Bjarnason, and F. Sigmundsson (2020). Seismic and geodetic response to crustal deformation in Krísuvík volcanic system, southwest Iceland. EGU General Assembly 2020 Online. EGU2020- 10569.
Bjarnason, I.T., Parameswaran, R.M.*, and Thorbjarnardóttir, B.S., 2020, May. Interseismic stress field variations in Hjalli-Ölfus, SW Iceland. In EGU General Assembly Conference Abstracts (p. 8521).
Thorbjarnardóttir, B.S., Bjarnason, I.T. and Parameswaran, R.M.*, 2020, May. The great Geysir and tectonic interactions in south Iceland. In EGU General Assembly Conference Abstracts (p. 16388).
Parameswaran, R.M.*, Bjarnason, I.T., Thorbjarnardottir, B.S. and Stefansson, R., (2019), December. Failures on orthogonal fault systems: A case study in southwest Iceland. In AGU Fall Meeting 2019. AGU. Paper no. S52C-02, Abstract ID#605153.
Parameswaran, R.M.*, I. Th. Bjarnason, and S. Th. Bergthóra (2019). Ölfus seismicity in Iceland-II: stress inversions, and seismotectonic implications. EGU General Assembly 2019. EGU2019-5880.
Thorbjarnardóttir, B.S.*, Parameswaran, R.M., and Bjarnason, I.T., 2019, January. Ölfus seismicity in Iceland-I: relative seismic relocations and spatio-temporal evolutions. In EGU General Assembly Conference Abstracts (p. 6115).
Parameswaran, R.M.*, K. Rajendran, S.N. Somala, and C.P. Rajendran (2018). The fault geometry explains the rupture complexity of the 2012, Mw 8.6 Indian Ocean earthquake. 2018 Seismology of the Americas Meeting LACSC-SSA.
Parameswaran, R.M., Maheswari, K. and Rajendran, K.*, 2017, December. Potential Seismic Signatures of Megathrust Preparatory Zones. In AGU Fall Meeting Abstracts (Vol. 2017, pp. S42B-08).
Parameswaran, R.M.*, and K. Rajendran (2016). The Mw 6.7, 2016, Imphal earthquake and its implications on the seismic hazard along the Indo-Burmese plate. 35th International Geological Congress (IGC). #4351. (Ministry delegate)
Parameswaran, R.M.*, and K. Rajendran (2016). Structural Context of the 2015 Pair of Nepal Earthquakes (Mw 7.8 And Mw 7.3): An Analysis Based on Slip Distribution, Aftershock Growth and Static Stress Changes. SSA 2016 Annual Meeting. #16017. (Kanamori International Fund)
Parameswaran, R.M.*, and K. Rajendran (2015). The intra-plate tsunamis of the 2012 Indian Ocean earthquakes, 12th Annual Meeting of Asia Oceania Geosciences Society (AOGS), 2nd-7th August, 2015, Singapore. IG18-A002. (Delegate and Student Volunteer)
Parameswaran, R.M.*, K. Rajendran, and C.P. Rajendran (2015). Did the thrust component in the last leg of the 2013 Mw 7.7 Balochistan earthquake rupture trigger the small tsunami observed in the northwest Indian Ocean, Invited paper on Reducing Tsunami Risk in the Western Indian Ocean; A Regional Conference (UNESCO/IOC) in Muscat, Oman, March 22-23, 2015. (Invited paper).
Parameswaran, R.M.*, and K. Rajendran (2014). Refinements on the inferred causative faults of the great 2012 Indian Ocean earthquakes, AGU Fall Meeting, San Francisco, December 15-19, 2014. (Berkner Fellow)