Ocean bottom seismometers deployed for regional earthquake studies typically record signals at sample rates of ~50 to >100 Hz and thus provide an opportunity to monitor the 16-Hz calls of blue whales and the 20-Hz call of fin whales. Several studies have demonstrated the potential of OBSs to detect and track fin and blue whales (e.g., McDonald et al., 1995; Rebull et al., 2006; Frank and Ferris...

INTRODUCTION To our knowledge, there was no record of Vibrio cholerae in Haiti until the 2010 post earthquake outbreak. METHODOLOGY This study describes the analysis of 301 stool samples from 117 infants in Port-au-Prince, Haiti, who participated in a pediatric nutrition study between July 2008 and October 2009. RESULTS Nine samples were identified positive with both SYBR Green and Taqman-M...

Large earthquakes occur in rocks undergoing high-pressure/low-temperature metamorphism during subduction. Rhythmic major-element zoning in garnet is a common product of such metamorphism, and one that must record a fundamental subduction process. We argue that rhythmic major-element zoning in subduction zone garnets from the Franciscan Complex, California, developed in response to growth-dissol...

An inscription on the supporting wall of the inverted siphon of the aqueduct of the ancient Roman city of Patara, SW Turkey, explains how the wall collapsed during an earthquake and was subsequently restored. Carbonate deposits formed inside the aqueduct channel show cyclic stable isotope changes representing 17 years of deposition. This sequence, together with the text of the inscription, allo...

Old trees growing along the San Andreas fault near Wrightwood, California, record in their annual ring-width patterns the effects of a major earthquake in the fall or winter of 1812 to 1813. Paleoseismic data and historical information indicate that this event was the "San Juan Capistrano" earthquake of 8 December 1812, with a magnitude of 7.5. The discovery that at least 12 kilometers of the M...

Abstract This study is devoted to the development of algorithms and software for earthquake record processing. The are based on methodology used by Pacific Earthquake Engineering Research Center implementation scientific project NGA-West2. purpose processing determine reliable values ground acceleration other parameters earthquakes from available records velocity time series. To analyze operati...

In performance-based earthquake wngineering, record selection comes into play at the interface of seismic hazard and structural analysis aiming to repair any loss essential seismological dependencies caused by choice an insufficient intensity measure be used for response prediction. Site-specific is best exemplified prominent conditional spectrum (CS) approach that attempts ensure a hazard-cons...

Offshore structures such as jacket platforms have to inevitably be designed against  sever  environmental actions. In seismically active areas these structures also become susceptible to earthquake excitations. Strong ground motions recorded  in recent earthquakes, including the 1995 Kobe, Japan, 1999 Chi-chi, Taiwan and 1999 Kocaeli, Turkey earthquakes, revealed that the dynamic motions in nea...

The input motion for seismic analysis of building structures is generally specified in design codes in terms of response spectrum. Therefore, real or simulated time histories for ground motions whose response spectrum matches approximately the design spectrum is desired. Among the various techniques currently available for generating spectrum compatible time histories it is possible to distingu...

Although India has a long written record, the shaking intensity of few damaging earthquakes that occurred before AD 1800, can be quantified. Since reliable estimates of future shaking near planned nuclear power plants depend on the extrapolation of historical earthquake data spanning many centuries, estimates of seismic risk to the planned Jaitapur nuclear power plant assessed from a short data...