What Drives Seismic Risk in New Zealand? Insights from a next
... contribute most to the seismic risk. Figure 5 highlights that about 40% of the risk is from the Wellington region, followed by Canterbury and Manawatu-Wanganui at around 12% each. Regions along the seismically active east coast of the North Island contribute between 2-10%. Auckland, although located ...
... contribute most to the seismic risk. Figure 5 highlights that about 40% of the risk is from the Wellington region, followed by Canterbury and Manawatu-Wanganui at around 12% each. Regions along the seismically active east coast of the North Island contribute between 2-10%. Auckland, although located ...
PDF only - at www.arxiv.org.
... high for a long time after the main shock. The mainline rupture of the main shock did not remove the previously accumulated stress. It has redistributed them to other parts of the source zone, thereby increasing the likelihood of aftershocks. Therefore, it is reasonably to search for the induced ear ...
... high for a long time after the main shock. The mainline rupture of the main shock did not remove the previously accumulated stress. It has redistributed them to other parts of the source zone, thereby increasing the likelihood of aftershocks. Therefore, it is reasonably to search for the induced ear ...
Exploring E Turkey - Scientific Research Publishing
... connecting the seismic events with the atmospheric events. Weather precursors to earthquakes are the one-to-one correlation. Rainfall is always associated and accompanied with any one of the weather conditions like heat waves, wildfire, strong winds and snow fall. Among the list of weather precursor ...
... connecting the seismic events with the atmospheric events. Weather precursors to earthquakes are the one-to-one correlation. Rainfall is always associated and accompanied with any one of the weather conditions like heat waves, wildfire, strong winds and snow fall. Among the list of weather precursor ...
Why We Need a New Paradigm of Earthquake Occurrence
... faulting in situ, and that the simple geometries and small sizes that can be handled in laboratory experiments are representative of conditions on actual faults in the Earth. The continuum approach is commonly applied to CE models through the rate- and state-dependent friction (RSF) law, even thoug ...
... faulting in situ, and that the simple geometries and small sizes that can be handled in laboratory experiments are representative of conditions on actual faults in the Earth. The continuum approach is commonly applied to CE models through the rate- and state-dependent friction (RSF) law, even thoug ...
MS Earthquakes Worksheets
... The earliest earthquake scale was the Mercalli scale. This scale measures earthquake intensity. There are several problems with the Mercalli scale. The damage from an earthquake is affected by many things in addition to the energy released during the quake. Also, different people may experience an e ...
... The earliest earthquake scale was the Mercalli scale. This scale measures earthquake intensity. There are several problems with the Mercalli scale. The damage from an earthquake is affected by many things in addition to the energy released during the quake. Also, different people may experience an e ...
attachment 7: discussion of mce and obe - Susitna
... be capable of repair “in a limited time.” The OBE can be defined based on probabilistic evaluations, with the level of seismic hazard (probability that the amplitude of ground motion will be exceeded during a particular length of time) being determined relative to the hazard potential classification ...
... be capable of repair “in a limited time.” The OBE can be defined based on probabilistic evaluations, with the level of seismic hazard (probability that the amplitude of ground motion will be exceeded during a particular length of time) being determined relative to the hazard potential classification ...
Investigation of tectonics and statistical analysis of earthquake
... the light of the theory of plate tectonics (plate - tectonic) has taken a clear face, so that on a global scale in the series Mountains is often mentioned as a classic example of the collision of continent - continent, which was aimed at the continental margin of the Pacific Ocean. [3]. Zagros is on ...
... the light of the theory of plate tectonics (plate - tectonic) has taken a clear face, so that on a global scale in the series Mountains is often mentioned as a classic example of the collision of continent - continent, which was aimed at the continental margin of the Pacific Ocean. [3]. Zagros is on ...
Seismic Waves
... A seismic risk map based on maxium horizontal acceleration during an earthquake. [gravity =9.8m/s2 ] ...
... A seismic risk map based on maxium horizontal acceleration during an earthquake. [gravity =9.8m/s2 ] ...
Deformation and seismicity near Sabancaya volcano, southern Peru
... deformation in the same region as the 17 July 2013 earthquake, presumably related to aftershock activity and postseismic deformation (Figure 2e). A simple distributed slip model with a uniform rake of 90° was considered to model the EW normal fault earthquake of 25 July which was recorded by the Glo ...
... deformation in the same region as the 17 July 2013 earthquake, presumably related to aftershock activity and postseismic deformation (Figure 2e). A simple distributed slip model with a uniform rake of 90° was considered to model the EW normal fault earthquake of 25 July which was recorded by the Glo ...
Deaths and Injuries due to the Earthquake in Armenia: A Cohort
... Results. Geographical location, being inside a building during the earthquake, height of the building, and location within the upper floors of the building were risk factors for injury and death in the univariate analyses. However, multivariate analyses, using different models, revealed that being i ...
... Results. Geographical location, being inside a building during the earthquake, height of the building, and location within the upper floors of the building were risk factors for injury and death in the univariate analyses. However, multivariate analyses, using different models, revealed that being i ...
Magnitude estimation using the first three seconds P
... Copyright 2006 by the American Geophysical Union. 0094-8276/06/2006GL026871$05.00 ...
... Copyright 2006 by the American Geophysical Union. 0094-8276/06/2006GL026871$05.00 ...
Seminar on b-value (PDF 0.2 MB)
... A significant increase in b is observed around M=7.3 or around M0=1027 dyne-cm (Pacheco et al., 1992) is interpreted as expressing the simultaneous saturation of W and the slip, D, on the fault. The latter is another important parameter in this context. When we compare the rate at which earthquakes ...
... A significant increase in b is observed around M=7.3 or around M0=1027 dyne-cm (Pacheco et al., 1992) is interpreted as expressing the simultaneous saturation of W and the slip, D, on the fault. The latter is another important parameter in this context. When we compare the rate at which earthquakes ...
Get PDF - Wiley Online Library
... gas line break as a red open circle, an observed fault kink band near Trojan Way as a triangle, and road cracks as red crosses. Faults from the UCERF-3 models [Field et al., 2013] are shown as dark grey lines. ...
... gas line break as a red open circle, an observed fault kink band near Trojan Way as a triangle, and road cracks as red crosses. Faults from the UCERF-3 models [Field et al., 2013] are shown as dark grey lines. ...
On the earthquake predictability of fault interaction models
... [Stein et al., 1992; King et al., 1994]. When an earthquake occurs, the state of stress in the Earth is altered as a consequence of the seismic dislocation. The change in the stress field can be predicted by means of standard elasticity theory if the parameters describing the seismogenic fault are kn ...
... [Stein et al., 1992; King et al., 1994]. When an earthquake occurs, the state of stress in the Earth is altered as a consequence of the seismic dislocation. The change in the stress field can be predicted by means of standard elasticity theory if the parameters describing the seismogenic fault are kn ...
Is There An Earthquake Migration Global Pattern?
... Manually collected data is used as the basis for automation and consolidation of probable seismic migration using the Flinn-Engdahl region as accurately as possible. It was observed that the pairs of consequent events over magnitude are well correlated. Only migration 4, manually collected, showed i ...
... Manually collected data is used as the basis for automation and consolidation of probable seismic migration using the Flinn-Engdahl region as accurately as possible. It was observed that the pairs of consequent events over magnitude are well correlated. Only migration 4, manually collected, showed i ...
Earthquake early warning for southern Iberia: AP wave threshold
... 1988], and in the 20th century, it was seismically very quiet as compared to other historical periods. The area of San Vicente Cape (Figure 1a) has generated large shocks, including the damaging 1755 Lisbon earthquake (Imax = X), and, more recently, the Ms = 8.1 1969 S. Vicente Cape earthquake, both ...
... 1988], and in the 20th century, it was seismically very quiet as compared to other historical periods. The area of San Vicente Cape (Figure 1a) has generated large shocks, including the damaging 1755 Lisbon earthquake (Imax = X), and, more recently, the Ms = 8.1 1969 S. Vicente Cape earthquake, both ...
1. indonesia : the ring of fire
... Geologically, Indonesia is located in a very unstable area. It lays in an area known as “The Ring of Fire”, a zone of frequent earthquakes and volcanic eruptions that encircles the basin of the Pacific Ocean. It stretches as a horseshoe-like area of about 40,000 km long, which hosts more than 90% of ...
... Geologically, Indonesia is located in a very unstable area. It lays in an area known as “The Ring of Fire”, a zone of frequent earthquakes and volcanic eruptions that encircles the basin of the Pacific Ocean. It stretches as a horseshoe-like area of about 40,000 km long, which hosts more than 90% of ...
Shallow inland earthquakes in NE Japan possibly triggered
... events. The RMS residual decreased from 0.16 s to 0.08 s by the relocation. Events of the cluster near the M 2.5 event seem to align with a NNW-SSE strike, which corresponds with one nodal plane of the focal mechanism. We assume this plane with a NNW-SSE strike would be one of the fault planes of th ...
... events. The RMS residual decreased from 0.16 s to 0.08 s by the relocation. Events of the cluster near the M 2.5 event seem to align with a NNW-SSE strike, which corresponds with one nodal plane of the focal mechanism. We assume this plane with a NNW-SSE strike would be one of the fault planes of th ...
preparing for a new view of u.s. earthquake risk
... gives the long-term rate of all earthquakes of magnitude five or greater (Mw ≥ 5) throughout the region and a probability model that gives a probability of occurrence for each earthquake during a specified future time interval. The latest versions of these models are used in developing the time-inde ...
... gives the long-term rate of all earthquakes of magnitude five or greater (Mw ≥ 5) throughout the region and a probability model that gives a probability of occurrence for each earthquake during a specified future time interval. The latest versions of these models are used in developing the time-inde ...
Earthquakes in Eastern Canada - Comptes
... most susceptible to mass movements, to define and upgrade buildings most at risk, and to educate the population about earthquake preparedness. ...
... most susceptible to mass movements, to define and upgrade buildings most at risk, and to educate the population about earthquake preparedness. ...
PDF
... geological structures are commonly repeated at all scales from outcrop to regional. Several regional earthquakes have been strongly felt and caused damages in and around Tabriz during history. Urban seismic risk is increasing with population growth and encroachment of vulnerable built in environment ...
... geological structures are commonly repeated at all scales from outcrop to regional. Several regional earthquakes have been strongly felt and caused damages in and around Tabriz during history. Urban seismic risk is increasing with population growth and encroachment of vulnerable built in environment ...
Seismic performance guidance[PDF 269 KB]
... injury attributed to masonry buildings as a result of the earthquake of 22 February 2011 affected people outside the building that failed, caused by falling masonry. Of the 42 deaths associated with buildings other than CTV or PGC, all but one were from falling masonry, and only five of these deaths ...
... injury attributed to masonry buildings as a result of the earthquake of 22 February 2011 affected people outside the building that failed, caused by falling masonry. Of the 42 deaths associated with buildings other than CTV or PGC, all but one were from falling masonry, and only five of these deaths ...
Advances in Natural and Applied Sciences
... volcanic eruptions, landslides and avalanches. (Solano and Scaruzzo, 2013). The earthquake is known as the most common natural disaster, because many earthquakes are registered with different dimensions during decades which caused many damages. Due to the earthquakes registered, the rate of mortalit ...
... volcanic eruptions, landslides and avalanches. (Solano and Scaruzzo, 2013). The earthquake is known as the most common natural disaster, because many earthquakes are registered with different dimensions during decades which caused many damages. Due to the earthquakes registered, the rate of mortalit ...
Remote sensing imagery for damage assessment of buildings after
... 2512 CPs, obtained from a manual classification of Boumerdes urban area. In the first case the results weren’t so satisfactory, instead in the second case the shift in buildings position between the registered and the master image was reduced to minimum. It’s obvious that this is a long work and is ...
... 2512 CPs, obtained from a manual classification of Boumerdes urban area. In the first case the results weren’t so satisfactory, instead in the second case the shift in buildings position between the registered and the master image was reduced to minimum. It’s obvious that this is a long work and is ...
The Bullas (Murcia, SE Spain)
... The intensity and focal mechanism of the Bullas earthquake of 29 January 2005 have been determined. The intensity assessment has been carried out using the EMS-98 scale and plotted on an intensity map. The focal mechanisms for the main shock and largest aftershock have been estimated from moment ten ...
... The intensity and focal mechanism of the Bullas earthquake of 29 January 2005 have been determined. The intensity assessment has been carried out using the EMS-98 scale and plotted on an intensity map. The focal mechanisms for the main shock and largest aftershock have been estimated from moment ten ...
2010 Canterbury earthquake
The 2010 Canterbury earthquake (also known as the Christchurch earthquake or Darfield earthquake) struck the South Island of New Zealand with a moment magnitude of 7.1 at 4:35 a.m. local time on 4 September, and had a maximum perceived intensity of X (Extreme) on the Mercalli Intensity Scale. Some damaging aftershocks followed the main event, the strongest of which was a magnitude 6.3 shock that occurred on 22 February 2011. Because this aftershock was centred very close to Christchurch, it was much more destructive and resulted in the deaths of 185 people, and was felt from Invercargill to Wellington.The main shock caused widespread damage and several power outages, particularly in the city of Christchurch, New Zealand's second largest city. Two residents were seriously injured, one by a collapsing chimney and a second by flying glass. One person died of a heart attack suffered during the quake, although this could not be directly linked to the earthquake. Mass fatalities were avoided partly due to there being few houses of unreinforced construction, although this was also aided by the quake occurring during the night when most people were off the street.The earthquake's epicentre was 40 kilometres (25 mi) west of Christchurch, near the town of Darfield. The hypocentre was at a shallow depth of 10 km. A foreshock of roughly magnitude 5.8 hit five seconds before the main quake, and strong aftershocks have been reported, up to magnitude 6.3.The initial quake lasted about 40 seconds, and was felt widely across the South Island, and in the North Island as far north as New Plymouth. As the epicentre was on land away from the coast, no tsunami occurred.The National Crisis Management Centre in the basement of the Beehive in Wellington was activated, and Civil Defence declared a state of emergency for Christchurch, the Selwyn District, and the Waimakariri District, while Selwyn District, Waimakariri and Timaru activated their emergency operation centres. Initially, a curfew was established for parts of Christchurch Central City from 7:00 pm to 7:00 am in response to the earthquake. The New Zealand Army was deployed to the worst affected areas in Canterbury.Claims from the earthquake were confirmed at being between $2.75 and $3.5 billion NZD.