@article {yarce_seismicity_2019,
	title = {Seismicity at the Northern Hikurangi Margin, New Zealand, and Investigation of the Potential Spatial and Temporal Relationships With a Shallow Slow Slip Event},
	journal = {Journal of Geophysical Research: Solid Earth},
	volume = {124},
	number = {5},
	year = {2019},
	note = {_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1029/2018JB017211},
	pages = {4751{\textendash}4766},
	abstract = {In 2014{\textendash}2015, the Hikurangi Ocean Bottom Investigation of Tremor and Slow Slip experiment deployed seafloor absolute pressure gauges and ocean bottom seismometers directly above a large slow slip event, allowing examination of the relationship between slow slip and earthquakes in detail. Hikurangi Ocean Bottom Investigation of Tremor and Slow Slip data were combined with nearby existing land stations to create a catalog of microseismicity consisting of 2,300 earthquakes ranging in magnitude between 0.5 and 4.7 that is complete to magnitude 1.5, yielding almost twice as many events as detected by the onshore networks alone. This greatly improves the seismicity catalog for this active subduction zone margin, especially in the offshore portion that was difficult to study using only the inland permanent seismic network. The new locations for the events within the footprint of the offshore network show that earthquakes near the trench are systematically shallower than and NW (landward) of their locations using only land-based stations. Our results indicate that Hikurangi seismicity is concentrated in two NE-SW bands, one offshore beneath the outer forearc wedge, one onshore beneath the eastern Raukumara Peninsula, and the majority of earthquakes are within the subducting Pacific plate with a smaller percent at the plate interface. We find a 20-km wide northeast trending gap in microseismicity between the two bands and beneath the inner forearc wedge and this gap in seismicity borders the downdip edge of a slow slip patch.},
	keywords = {gap, Hikurangi, ocean bottom seismometers, seismicity, slow slip},
	issn = {2169-9356},
	doi = {10.1029/2018JB017211},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1029/2018JB017211},
	author = {Yarce, J. and Sheehan, A. F. and Nakai, J. S. and Schwartz, S. Y. and Mochizuki, K. and Savage, M. K. and Wallace, L. M. and Henrys, S. A. and Webb, S. C. and Ito, Y. and Abercrombie, R. E. and Fry, B. and Shaddox, H. and Todd, E. K.}
}
@article {wang_tsunami_2019,
	title = {Tsunami Data Assimilation Without a Dense Observation Network},
	journal = {Geophysical Research Letters},
	volume = {46},
	number = {4},
	year = {2019},
	note = {_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1029/2018GL080930},
	pages = {2045{\textendash}2053},
	abstract = {The tsunami data assimilation method enables tsunami forecasting directly from observations, without the need of estimating tsunami sources. However, it requires a dense observation network to produce desirable results. Here we propose a modified method of tsunami data assimilation for regions with a sparse observation network. The method utilizes interpolated waveforms at virtual stations. The tsunami waveforms at the virtual stations between two existing observation stations are estimated by shifting arrival times with the linear interpolation of observed arrival times and by correcting the amplitudes for their water depths. In our new data assimilation approach, we employ the Optimal Interpolation algorithm to both the real observations and virtual stations, in order to construct a complete wavefront of tsunami propagation. The application to the 2004 Sumatra-Andaman earthquake and the 2009 Dusky Sound, New Zealand, earthquake reveals that addition of virtual stations greatly helps improve the tsunami forecasting accuracy.},
	keywords = {data assimilation, tsunami forecasting},
	issn = {1944-8007},
	doi = {10.1029/2018GL080930},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1029/2018GL080930},
	author = {Wang, Y. and Maeda, T. and Satake, K. and Heidarzadeh, M. and Su, H. and Sheehan, A. F. and Gusman, A. R.}
}
@article {Wallace2016,
	title = {Slow slip near the trench at the Hikurangi subduction zone, New Zealand},
	journal = {Science},
	volume = {352},
	number = {6286},
	year = {2016},
	month = {may},
	pages = {701{\textendash}704},
	issn = {0036-8075},
	doi = {10.1126/science.aaf2349},
	url = {https://www.sciencemag.org/lookup/doi/10.1126/science.aaf2349},
	author = {Wallace, L. M. and Webb, S. C. and Ito, Y. and Mochizuki, K. and Hino, R. and Henrys, S. and Schwartz, S. Y. and Sheehan, A. F.}
}
@article {wech_tectonic_2013,
	title = {Tectonic Tremor Recorded by Ocean Bottom Seismometers},
	journal = {Seismological Research Letters},
	volume = {84},
	number = {5},
	year = {2013},
	month = {sep},
	pages = {752{\textendash}758},
	issn = {0895-0695},
	doi = {10.1785/0220120184},
	url = {https://doi.org/10.1785/0220120184},
	author = {Wech, A. G. and Sheehan, A. F. and Boese, C. M. and Townend, J. and Stern, T. A. and Collins, J. A.}
}
@article {stachnik_determination_2012,
	title = {Determination of New Zealand Ocean Bottom Seismometer Orientation via Rayleigh-Wave Polarization},
	journal = {Seismological Research Letters},
	volume = {83},
	number = {4},
	year = {2012},
	pages = {704{\textendash}713},
	abstract = {Online material: Complete list of earthquakes used in this study.},
	issn = {0895-0695},
	doi = {10.1785/0220110128},
	url = {https://doi.org/10.1785/0220110128},
	author = {Stachnik, J. C. and Sheehan, A. F. and Zietlow, D. W. and Yang, Z. and Collins, J. and Ferris, A.}
}
