During this period, the Chilean earthquake of 1960 has the largest M s, 8.5. The surface-wave magnitudes listed in "Earthquake Data Reports" are found to be higher than M s on the average. By using the same method as that used by Gutenberg, the broad-band body-wave magnitudes m B ...
For that study the coefficient "b" in the magnitude versus frequency equation is 0.35 for the former and 0.76 for the latter. A similar investigation has been carried out on the great Chilean earthquake of 1960, also accompanied by many foreshocks and aftershocks. Using four sensitive and ...
A new magnitude scale M_w is defined in terms of W_0 through the standard energy-magnitude relation log W_0 = 1.5M_w + 11.8. M_w is as large as 9.5 for the 1960 Chilean earthquake and connects smoothly to M_s (surface wave magnitude) for earthquakes with a rupture dimension of ...
Megathrust earthquakes are responsible for some of the most devastating natural disasters1. To better understand the physical mechanisms of earthquake generation, subduction zones worldwide are continuously monitored with geophysical instrumentation. One
Abstract. During his trip on the Beagle, Charles Darwin wrote about the eruptions associated with the Concepción earthquake of 1835. A later survey by Lorenzo Casertano, following the great 1960 Chilean earthquake, identified some unclear evidence of a link between eruptions and the seismic event,...
121, No. 1, 1983 Interpretation of the Precursor to the 1960 Great Chilean Earthquake as a Seismic Solitary Wave FERNANDO LUND 1 Abstract - Seismic solitary waves may exist. The situation envisaged is that of an elastic layer over a half space where transverse, linearly polarized surface waves...
Those stud- ies concluded that the 1700 Cascadia earthquake with a magnitude range of 8.7–9.2 ruptured the entire Cascadia subduction zone. An earthquake in Hokkaido in the seventeenth cen- tury (the seventeenth century Hokkaido earthquake) was a great prehistoric earthquake (Mw 8.8) in which ...
The Tohoku region, Northeast Japan, was hit by a gigantic earthquake which occurred in the Pacific close to Tohoku, and subsequently by a giant tsunami. These hazards have caused huge damage on the eastern coast Japan. The earthquake’s magnitude was 9.0, the strongest ever recorded in Japan....
At Pichilemu, in the northern third of the rupture area of the moment magnitude scale (Mw) 8.8 2010 Chile earthquake, deposits of the tsunami accompanying the earthquake consist of a lower layer of medium to fine sand (mean grain size of 200 μm) containing rock clasts, overlain by a...
Strain is released along the Chilean megathrust by great earthquakes, including the greatest magnitude ever recorded, the 1960 M9.5 rupture of the Valdivia segment. These earthquakes are characterised by intense, long duration shaking, significant land surface deformation and typically spawn trans-Pacific...