Large earthquakes and tsunamis

I’m interested in all things seismic but I'm particularly intersted in large earthquakes and the tsunamis they make. I study these large events with old and new source imaging techniques and inverse methods that include on-shore and off-shore data.

I also enjoy working on real-time applications of seismology such as earthquake early warning, tsunami early warning and monitoring of engineered structures.

Education

  • 2014 - Ph.D. Geophysics, Scripps Institution of Oceanography
  • 2010 - M.Sc. Geophysics, Scripps Institution of Oceanography
  • 2009 - B.Eng. Geophysics, Unviersidad Nacional Autonoma de Mexico

Publications

Peer Reviewed

  • 21.- D. Melgar, Fan, W, Geng, J., et al. (2015), Slip segmentation and slow rupture to the trench during the 2015 Mw8.3 Illapel, Chile earthquake, Submitted. (link)
  • 20.- D. Melgar, Allen, R.M., Riquelme, S., et al. (2015), Local tsunami warning, Submitted. (link)
  • 19.- Y. Bock and Melgar, D. (2015), Physical Applications of GPS Geodesy: A Review, Reports on Progress in Physics (in press)
  • 18.- Lindsey, E.O., Natsuaki, R., Xu, X., Shimada, M., Hashimoto, M., Melgar., D. & Sandwell, D.T. (2015), Line of Sight Displacement from ALOS-2 Interferometry: M7.8 Gorkha Earthquake and Mw 7.3 Aftershock, Geophys. Res. Lett., doi: 10.1002/2015GL065385
  • 17.- Galetzka, J., Melgar, D., Genrich, J.F., et al. (2015), Slip pulse and resonance of Kathmandu basin during the 2015 Mw7.8 Gorkha earthquake, Nepal, Science,doi: 10.1126/science.aac6383
  • 16.- D. Melgar, Crowell, B.W., Geng, J., Allen, R.M., Bock, Y., Riquelme, S., Hill, E.M., Protti, M., & Ganas, A (2015), Earthquake Magnitude Calculation without Saturation from the Scaling of Peak Ground Displacement, Geophys. Res. Lett, doi:10.1002/2015GL064278
  • 15.- D. Melgar, Geng, J., Crowell, B.W., Hammond, W.C., Haase, J.S., Bock, Y. and Allen, R.M. (2015), Seismogeodesy of the 2014 Mw6.1 Napa, California, Earthquake: Rapid Response and Modeling of Fast Rupture on a Dipping Strike-slip Fault, J. Geophys. Res., doi:10.1002/2015JB011921
  • 14.- D. Melgar and Bock, Y. (2015), Kinematic Source Inversion and Tsunami Prediction with Regional Geophysical Data, J. Geophys. Res.,doi:10.1002/2014JB011832
  • 13.- B.W. Crowell, Melgar, D., Bock, Y., Haase, J.S & Geng, J. (2013), Earthquake Magnitude Scaling using Seismogeodetic Data, Geophys. Res. Lett., doi: 10.1002/2013GL058391. (link)
  • 12. D. Melgar & Bock, Y. (2013), Near-Field Tsunami Models with Rapid Earthquake Source Inversions from Land- and Ocean-Based Observations: The Potential for Forecast and Warning, J. Geophys. Res., doi: 10.1002/2013JB010506. (link)
  • 11.- J. Geng, Melgar, D., Bock, Y., Pantoli, E. & Restrepo, J. (2013), Recovering coseismic point ground tilts from collocated high-rate GPS and accelerometers, Geophys Res. Lett., doi: 10.1002/grl.51001. (link)
  • 10.- D. Melgar, Crowell, B.W., Bock, Y. & Haase, J (2013), Rapid modeling of the 2011 Mw 9.0 Tohoku-oki earthquake with seismogeodesy, Geophys. Res. Lett., doi: 10.1002/grl.50590. (link)
  • 9.- J. Geng, Bock, Y., Melgar, D., Crowell B.W. & Haase, J (2013), A new seismogeodetic approach applied to GPS and accelerometer observations of the 2012 Brawley seismic swarm: Implications for earthquake early warning, Geochem. Geophys. Geosyst, doi: 10.1002/ggge.20144. (link)
  • 8.- D. Melgar, Bock, Y., Sanchez, D. & Crowell, B.W. (2013), On Robust and Reliable Automated Baseline Corrections for Strong Motion Seismology, J. Geophys. Res, 119, 1-11, doi:10.1002/jgrb.50135. (link)
  • 7.- X. Perez-Campos, Melgar, D., Singh, S.K., Cruz-Atienza, V., Iglesias, A., Hjorleifsdottir, V., (2013). Determination of tsunamigenic potential of a scenario earthquake in the Guerrero seismic gap along the Mexican subduction zone, Seism. Res. Lett., 84(3), doi: 10.1785/0220120156. (link)
  • 6.- B.W. Crowell, Bock, Y. & Melgar, D. (2012), Real-time inversion of GPS data for finite fault modeling and rapid hazard assessment, Geophys. Res. Lett., 39, doi:10.1029/2012GL051318. (link)
  • 5.- S.K. Singh, Pérez-Campos, X., Iglesias, A., Melgar, D. (2012), A Method for Rapid Estimation of Moment Magnitude for Early Tsunami Warning Based on Coastal GPS Networks, Seism. Res. Lett., 83(3), 516-530. (link)
  • 4.- D. Melgar, Bock, Y. & Crowell, B.W., (2012), Real-Time Centroid Moment Tensor Determination for Large Earthquakes from Local and Regional Displacement Records, Geophys. J. Int., doi:10.1111/j.1365-246X.2011.05297.x. (link)
  • 3.- Y. Bock, Melgar, D. & Crowell, B.W., (2011), Real-Time Strong-Motion Broadband Displacements from Collocated GPS and Accelerometers, Bull. Seism. Soc. Am., 101(5) 2904-2925. (link)
  • 2.- D. Melgar & Perez-Campos, X., (2011), Eduquakes: How a Soccer Stadium Helps with an Education in Science and Seismology, Seis. Res. Lett., 82(1), 115-120. (link)
  • 1.- D. Melgar & Perez-Campos, X., (2010) Imaging the Moho and Subducted Oceanic Crust at the Isthmus of Tehuantepec, Mexico, from Receiver Functions, Pure Appl. Geophys., 168, 1449-1460.  (link)

Data sets

  • D. Melgar, Pantoli, E., Restrepo, J., Bock, Y. (2013). Displacement Acquisition for the NEESR:BNCS Building Shaketable Test via GPS Sensors, Network for Earthquake Engineering Simulation (distributor), Dataset, doi:10.4231/D3V97ZR5H. (link)

 

 

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Contact

dmelgar [at] berkeley.edu