A temporary seismic array in Marie Byrd Land in West Antarctica recorded two bursts of activity in 2010 and 2011. Careful analysis of the events shows they originate from a subglacial volcano at the leading end of a volcanic mountain chain. The volcano is unlikely to erupt through the kilometer of ice that covers it but it will melt enough ice to change the way the ice in its vicinity flows.
A series of small earthquakes near Snyder, Texas between 2006 and 2011 were probably triggered by the underground injection of large volumes of gas, primarily carbon dioxide — a finding that has implications for the process of carbon capture and storage. Experts also note that similar rates of injections have not triggered comparable quakes in other fields, bolstering the idea that gas injection does not cause significant seismic events in many geologic settings.
Earthquake early warning systems may provide the public with crucial seconds to prepare for severe shaking. For California, a new study suggests upgrading current technology and relocating some seismic stations would improve the warning time, particularly in areas poorly served by the existing network — south of San Francisco Bay Area to north Los Angeles and north of the San Francisco Bay Area.
Scientists have used Google’s online street view scans to document the damage caused by the 2009 L’Aquila earthquake and suggests that the database would be a useful tool for surveying damage caused by future earthquakes.
A new study suggests the next big quake on the Seattle fault may cause devastating damage from landslides, greater than previously thought and beyond the areas currently defined as prone to landslides. New research offers a framework for simulating hundreds of earthquake scenarios for the Seattle area.
The iron in Earth’s inner core weakens dramatically before it melts, explaining the unusual properties that exist in the moon-sized solid center of our planet that have, up until now, been difficult to understand.
A tiny chip used in smart phones to adjust the orientation of the screen could serve to create a real-time urban seismic network, easily increasing the amount of strong motion data collected during a large earthquake.
Geologists have shown how deep earthquakes can be simulated in the laboratory. The experiments were performed using a new type of apparatus that uses synchrotron X-rays.
A magnitude 8.3 earthquake that struck deep beneath the Sea of Okhotsk on May 24, 2013, has left seismologists struggling to explain how it happened. At a depth of about 609 kilometers, the intense pressure on the fault should inhibit the kind of rupture that took place.
The stage is now set for superconductivity to branch out and meet some of the biggest challenges facing humanity today. A new article explains how superconducting technologies can move out of laboratories and hospitals and address wider issues such as water purification, earthquake monitoring and the reduction of greenhouse gases.