Magnetic storm free ULF analysis in relation with earthquakes in
... In terms of the Tohoku earthquake, the phenomena (i.e. decrease of the cross correlation values) that appeared about 5 days before this grave event are observed at 8 stations, which are located about 2500 km away from the epicenter. The values (∼0.6; also see Fig. A6 in Appendix), which suggest seis ...
... In terms of the Tohoku earthquake, the phenomena (i.e. decrease of the cross correlation values) that appeared about 5 days before this grave event are observed at 8 stations, which are located about 2500 km away from the epicenter. The values (∼0.6; also see Fig. A6 in Appendix), which suggest seis ...
Relationship between Modified Mercalli Intensity and peak ground
... level of VIII in a radius of 150 km from its source. After that, on 5th May 1930, a Mw-7.3 earthquake occurred again in southern Myanmar, generating a maximum MMI level of IX. Then, on 3rd - 4th December 1930, two earthquakes of approximately the same magnitude (~Mw 7.3) in Pyu and Yangon, respectiv ...
... level of VIII in a radius of 150 km from its source. After that, on 5th May 1930, a Mw-7.3 earthquake occurred again in southern Myanmar, generating a maximum MMI level of IX. Then, on 3rd - 4th December 1930, two earthquakes of approximately the same magnitude (~Mw 7.3) in Pyu and Yangon, respectiv ...
case study on an existing rc building
... more important in the past several years. The decision of the analysis method for performance-based assessment is being a new topic and linear elastic methods of analysis have been used for a long time. Structural assessment and design concept with the principle of performance criteria based on the ...
... more important in the past several years. The decision of the analysis method for performance-based assessment is being a new topic and linear elastic methods of analysis have been used for a long time. Structural assessment and design concept with the principle of performance criteria based on the ...
Instrumental seismic catalogue of Mt. Etna earthquakes
... eastern sector most of earthquakes are located within 7 km of depth and, the deepening of focii towards east is evident (Figure 10a). Most of the epicenters are concentrated in the northeastern flank, along the Pernicana Fault System, in the Valle del Bove and in a wide sector to the ESE of the Vall ...
... eastern sector most of earthquakes are located within 7 km of depth and, the deepening of focii towards east is evident (Figure 10a). Most of the epicenters are concentrated in the northeastern flank, along the Pernicana Fault System, in the Valle del Bove and in a wide sector to the ESE of the Vall ...
Seismic structure of the Tengchong volcanic area southwest China
... The data used in this study are P-wave arrival times from local earthquakes recorded by the temporary network and eight permanent stations in the study area (Fig. 2). The temporary network consisted of 24 broadband stations equipped with the RefTek Digital Acquisition Systems (DAS) and three-compone ...
... The data used in this study are P-wave arrival times from local earthquakes recorded by the temporary network and eight permanent stations in the study area (Fig. 2). The temporary network consisted of 24 broadband stations equipped with the RefTek Digital Acquisition Systems (DAS) and three-compone ...
Intricacies of the Himalayan seismotectonics and seismogenesis
... of Seeber et al. 18, and an evolutionary model of Ni and Barazangi 13 have been proposed to explain the Himalayan seismicity. In the steady state model, the zone of detachment has been identified as a portion of the active thrust fault between the subducting slab and the sedimentary wedge22, while t ...
... of Seeber et al. 18, and an evolutionary model of Ni and Barazangi 13 have been proposed to explain the Himalayan seismicity. In the steady state model, the zone of detachment has been identified as a portion of the active thrust fault between the subducting slab and the sedimentary wedge22, while t ...
1992 Cape Mendocino earthquakes
The 1992 Cape Mendocino earthquakes (or 1992 Petrolia earthquakes) occurred along the Lost Coast of Northern California on April 25 and 26. The three largest events were the M7.2 thrust mainshock that struck near the unincorporated community of Petrolia midday on April 25 and two primary strike-slip aftershocks measuring 6.5 and 6.6 that followed early the next morning. The sequence encompassed both interplate and intraplate activity that was associated with the Mendocino Triple Junction, a complex system of three major faults (including the Cascadia subduction zone, San Andreas Fault, and Mendocino Fracture Zone) that converge near Cape Mendocino. The total number of aftershocks that followed the events exceeded 2,000.The three shocks damaged and destroyed homes and businesses in Humboldt County and injured 356 people, but the single largest loss was due to a post-earthquake fire that consumed a business center in Scotia. Accelerometers that had been in place in the Cape Mendocino area since the late 1970s recorded the event and the readings were moderate to strong, with the exception of the instruments closest to the epicenter, which went off scale a few seconds into the recording. No surface ruptures were present in the epicentral area, but landslides closed roads and railroad tracks for at least a week while cleanup took place. Also discovered was about 1 m (3 ft 3 in) of coastal uplift near Cape Mendocino and Punta Gorda.As the largest earthquake in California since the 1989 Loma Prieta event several years earlier, the mainshock caused a non-destructive tsunami that quickly reached the coast, and eventually Alaska and Hawaii several hours later. The tsunami was significant not because of its run-up, but because of the speed with which it reached the coast and for how long the waves persisted. Other strong earthquakes have affected the same area, with some that were clearly associated with the (interplate) Mendocino Fracture Zone, and others (like the two shocks on April 26) were intraplate earthquakes that ruptured within the Gorda Plate, but events that are unequivocally associated with the Cascadia subduction zone are very infrequent.