Processed multichannel seismic data along the northern continental margin of Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9910 (1999)

This 1999 Ewing cruise offshore Papua New Guinea, collecting MCS and OBS/OBH data, involved researchers from the University of Hawaii (UH), Lamont-Doherty Earth Observatory (LDEO), and the University of California, Santa Cruz (UCSC). The first part of the cruise was an ODP site survey to characterize in detail the low-angle fault at the rift-to-spreading transition in the Woodlark Basin. UH worked on the MCS and LDEO on the OBS/OBH data. UCSC processed the data from the second part of the cruise which focused on the source region of a 1998 tsunami along the northern continental margin of Papua New Guinea. The purpose of the early part of the cruise was to study the seismicity of an active continental breakup in the western Woodlark Basin. The goal of the second part was to study the internal structure of the tsunami source region. Funded by NSF grant OCE 9730864, OCE 9730824, OCE 9730567, and OCE 9725792.

1999年，由夏威夷大学（UH）、拉蒙特-多赫蒂地球观测站（LDEO）和加州大学圣克鲁斯分校（UCSC）的研究人员共同参与的Ewing远洋考察活动，在巴布亚新几内亚近海采集了多尺度地震事件（MCS）和海洋底部观测系统/海底地震仪（OBS/OBH）数据。考察的初始阶段，是对伍德拉克盆地裂谷至扩张过渡区域中的低角度断层进行详细特征描述的ODP（海洋地学研究）现场调查。夏威夷大学负责MCS数据的研究，而拉蒙特-多赫蒂地球观测站专注于OBS/OBH数据。加州大学圣克鲁斯分校处理了考察后期数据，该阶段专注于1998年沿巴布亚新几内亚北部大陆边缘海啸的源区研究。考察早期阶段的目的是研究西部伍德拉克盆地内活跃的大陆裂解的地震活动。第二阶段的目标是探究海啸源区的内部结构。该考察项目由美国国家科学基金会（NSF）资助，资助编号分别为OCE 9730864、OCE 9730824、OCE 9730567和OCE 9725792。