earthquakes

Magmatically triggered slow earthquake discovered at Kilauea Volcano

harminka — Fri, 29 Aug 2008 15:27:47 -0500

From June 17-19th 2007, Kilauea experienced a new dike intrusion, where magma rapidly moved from a storage reservoir beneath the summit into the east rift zone and extended the rift zone by as much as 1 meter. Researchers from the University of Hawaii at Manoa (UHM), Scripps Institution of Oceanography at UC San Diego, and the U.S.

New analysis of earthquake zone raises questions

harminka — Tue, 26 Aug 2008 13:01:24 -0500

Oregon State University scientists have completed a new analysis of an earthquake fault line that extends some 200 miles off the southern and central Oregon coast that they say is more active than the San Andreas Fault in California.

Earthquakes may endanger New York more than thought

harminka — Fri, 22 Aug 2008 13:20:17 -0500

A study by a group of prominent seismologists suggests that a pattern of subtle but active faults makes the risk of earthquakes to the New York City area substantially greater than formerly believed.

Chinese earthquake provides lessons for future

harminka — Mon, 21 Jul 2008 12:45:56 -0500

The May 12 Sichuan earthquake in China was unexpectedly large. Analysis of the area, however, now shows that topographic characteristics of the highly mountainous area identified the mountain range as active and could have pointed to the earthquake hazard.

Early earthquake warning: New tools show promise

harminka — Wed, 09 Jul 2008 15:09:08 -0500

Using remarkably sensitive new instruments, seismologists have detected minute geological changes that preceded small earthquakes along California's famed San Andreas Fault by as much as 10 hours.

Pre-earthquake changes detected in the crust

harminka — Wed, 09 Jul 2008 14:59:06 -0500

Although measurement techniques surrounding earthquakes have improved enormously over the last few decades, it has remained very difficult to measure changes in the crust that could enable earthquake prediction.

China quake rare and unexpected

harminka — Mon, 30 Jun 2008 12:25:35 -0500

A new analysis of the setting for last month's devastating earthquake in China by a team of geoscientists at MIT shows that the quake resulted from faults with little seismic activity, and that similar events in that area occur only once in every 2,000 to 10,000 years, on average.

Study of Glacial Earthquakes Shakes Up Idea of How Ice Streams Move

harminka — Fri, 06 Jun 2008 12:04:14 -0500

New research that integrates seismic recordings with Global Positioning System (GPS) measurements indicates that a 7,000-square-mile region of the Whillians Ice Stream in West Antarctica moves more than two feet twice every day in an earthquake-like pattern equivalent to a Magnitude 7 temblor.

Data show Antarctic ice stream radiating seismically

harminka — Wed, 04 Jun 2008 14:17:51 -0500

A seismologist at Washington University in St. Louis and colleagues at Pennsylvania State University and Newcastle University in the United Kingdom have found seismic signals from a giant river of ice in Antarctica that makes California's earthquake problem seem trivial.

The Animals Knew The Quake Was Coming

admin_huliq — Wed, 28 May 2008 19:49:08 -0500

Thousands of toads appeared on the streets in one Chinese town days before it hit. Zoo animals started acting strangely hours before the worst earthquake in China’s history. Could these signs have been used to alert people something was about to happen?

Stress buildup precedes large Sumatra quakes

harminka — Wed, 28 May 2008 12:53:34 -0500

The island of Sumatra, Indonesia, has shaken many times with powerful earthquakes since the one that wrought the infamous 2004 Indian Ocean tsunami.

Big quakes spark jolts worldwide

harminka — Mon, 26 May 2008 02:06:47 -0500

Until 1992, when California’s magnitude-7.3 Landers earthquake set off small jolts as far away as Yellowstone National Park, scientists did not believe large earthquakes sparked smaller tremors at distant locations. Now, a definitive study shows large earthquakes routinely trigger smaller jolts worldwide, including on the opposite side of the planet and in areas not prone to quakes.