The Trembling Earth

now at blogs.agu.org/tremblingearth

Search Results for: liquefaction

Amazing liquefaction in Tokyo

A new video from Japan [embedded below] shows liquefaction occurring at a scale and scope that I haven’t seen before in video footage. The video is from Urayasu  town, Chiba Prefecture–an industrial suburb of Tokyo that appears to be sited on made land adjacent to Tokyo Bay. No wonder it sloshes so heavily: made land (fill) […]

Liquefaction in an aftershock

I stumbled upon a fascinating video a couple of weeks ago showing what happens to sand volcanoes as seismic waves pass. This would have fit in either my aftershocks or my liquefaction posts from last week, but it’s both stunning and unique so I decided it deserves a post of its own.   This New […]

Liquefaction in New Zealand

One of the ubiquitous features of the nice flat sedimentary plains where people tend to prefer building cities, suburbs, or at least vast agricultural tracts, is that they generally liquefy when subjected to strong shaking. The results include serious instability of the “solid” ground, flooding, and ejection of silty water in places it would certainly […]

Remembering Northridge

Today is a day of significant quake anniversaries for the U.S. and Japan. The last U.S. quake to kill more than a few people struck the L.A. suburb of Northridge 19 years ago today, in the wee hours of the morning. The San Fernando Valley was hit hard, but the whole L.A. area rattled violently, […]

Legendary phenomena in the 1811-1812 New Madrid earthquakes

200 years ago this February 7, on the western frontier of European settlement in North America, the pioneering westward expanders and the natives whose land they were colonizing were thrown from their sleep in the deep wee hours of a winter night by the culminating temblor of a harrowing, months-long sequence of major earthquakes, aftershocks […]

Relentless quakes in Christchurch

Christchurch, New Zealand, has suffered its fourth day (and 5th, 6th, and 7th big quakes) in barely over a year of what continues to be a brutal onslaught of seismicity. It began in September, 2010, with a magnitude 7.0 earthquake outside of town that caused billions of dollars in economic losses. The vigorous aftershock sequence […]

Loma Prieta earthquake anniversary

Twenty two years ago this very day the San Francisco Giants were preparing to play their cross-bay rivals, the Oakland Athletics, in the 1989 World Series–the so-called Battle of the Bay. It was just after 5pm on a beautiful October afternoon, and the nation’s eyes were glued on television coverage from Candlestick Park in southeastern […]

More quake footage from NZ

Yesterday I posted a few videos of the large pair of quakes that struck Christchurch once again on Monday. Since then a few more have surfaced showing the 6.0 as it happened. Clearly even the earthquake-worn residents of Christchurch were startled by such a large temblor. This man’s home suffered some damage in the 5.5 […]

Unwarranted alarmism, and a hiatus for field work

There have been plenty of doomsday claims circulating the internet in the wake of the massive 9.0 “Tohoku” earthquake–lots about supermoons, some about dead fish, some merely about some alleged “pattern” of recent quakes circling the Pacific, a pattern generally conveniently selected to only include earthquakes that have hit the news. I won’t bother to […]