Last month, Rex Dalton told us about a major earthquake in Baja Mexico that in addition to killing two people had the unfortunate local consequence of sealing off a traditional fishing spot that sustains the Cucapá Indian community. In “Quake Rescues Reserve, Shakes Baja Fishing Town,” he noted that aftereffects of the 7.2-magnitude Easter 2010 earthquake pleased conservationists as much as it annoyed the subsistence fishermen, and for exactly the same reasons. In the pleased column now add seismologists. The U.S. Geological Survey just announced that the El Mayor-Cucapah quake ... Read More
Christchurch Still Shaken By Quake One Year Later
February 21, 2012 • By • Leave a Comment
When Don Mathias, a self-employed machinist and welder in Christchurch, New Zealand, saw a four-ton lathe leaping across the floor of his workshop, he knew this was no ordinary earthquake. “Everything jumped up in the air,” said the 53-year-old. “It was like being charged by a bull. When I saw that lathe moving I thought, ‘Nowhere’s safe in this building. I’ve got to get out.’” With more debris raining down from the mezzanine floor above, he staggered through the door and ran down an alleyway … and straight into a flight of stairs that weren’t there two minutes ... Read More
New Dirt on Climate Change
January 13, 2012 • By • Leave a Comment
For decades, geologists have been drilling — literally — for clues that would help them understand ancient wholesale changes in Earth’s climate, clues that could shed light on current global warming. Usually, their efforts have been aimed at sea sediments taken from cores extracted hundreds of feet beneath the ocean floor. But in a more terrestrial project this past summer, an international geological team led by the University of New Hampshire began deep-core drilling at three sites in Wyoming’s Bighorn Basin east of Yellowstone National Park. These six new core samples from ... Read More
Comet Theory Comes Crashing to Earth
May 14, 2011 • By • Leave a Comment
It seemed like such an elegant answer to an age-old mystery: the disappearance of what are arguably North America’s first people. A speeding comet nearly 13,000 years ago was the culprit, the theory goes, spraying ice and rocks across the continent, killing the Clovis people and the mammoths they fed on, and plunging the region into a deep chill. The idea so captivated the public that three movies describing the catastrophe were produced. But now, four years after the purportedly supportive evidence was reported, a host of scientific authorities systematically have made the case that the ... Read More
I See a Quake in Your Future. Sometime.
February 16, 2010 • By • 1 Comment
Science is messy. For every step forward on the road to truth, there are two steps in some other direction. And the way toward earthquake prediction, the Holy Grail of seismology, is littered with the dashed hopes of those who have failed. "Even well-trained scientists, even brilliant scientists, can fool themselves in their quest to prove something they believe or want to be true," says Susan Hough in her engaging new book, Predicting the Unpredictable: The Tumultuous Science of Earthquake Prediction. "... It is a hard thing for any scientist to do, to admit they have been on a path that ... Read More
