ALASKA1964_INUNDATION - Alaska 1964 Estimated Tsunami Inundation Line at Seaside, Oregon

This data set is a polyline shapefile representing the tsunami inundation line for the Alaska 1964 event based on observations and associated information obtained by Tom Horning (1997). The polyline was digitized from a line drawn by Tom Horning on an orthophoto taken in 1997.本数据集为折线型形状文件（polyline shapefile），基于Tom Horning（1997年）收集的观测数据与相关辅助信息，呈现了1964年阿拉斯加海啸事件的海啸淹没线。该折线要素由Tom Horning在1997年拍摄的正射影像（orthophoto）上绘制的线条经数字化处理后得到。