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The experience is like being in a balloon drifting slowly through the sky, and looking down at a hitherto-unseen landscape. But these “photos” are created from reflected sound waves, not reflected light. On the video screen, these images look like aerial photos, showing the ocean floor in in black and white in unprecedented clarity and detail. The ship tows a “fish,” an instrument gliding thousands of feet beneath the sea surface and emitting sound signals that echo back from the sea floor to the fish and are then transmitted to the lab aboard ship. ![]() ![]() Chris Goldfinger and Bruce Appelgate, graduate students at Oregon State University, and electronics technician Kevin Redman of Williamson and Associates, are in the science lab of OSU’s research ship Wecoma, looking on the TV monitor at side-scan sonar imagery taken as the Wecoma cruises above the base of the continental slope along the Cascadia Subduction Zone off central Oregon. Yurok legend told by Tskerkr of Espeu, recorded by A. Then he said to him, ‘Now you listen: I shall begin to run.’ He shook the ground. Earthquake stayed still to listen to his running. …’ So began to run, and leaped on trees and broke them down. “Earthquake said, ‘Well, I shall tear up the earth.’ Thunder said, ‘That’s why I say we will be companions, because I shall go over the whole world and scare them. It was such a violent earthquake that there has never been one like it since the human race began on Earth.” ![]() “Then there were lightning flashes, rumblings, and peals of thunder, and a great earthquake.
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