The mechanism of sandblowsBulletin of the Seismological Society of America - Tập 48 Số 2 - Trang 155-161 - 1958
George W. Housner
abstract
The formation of sandblows by earthquakes is explained in terms of well-known properties of water-bearing soils. The important parameters of the problem are the porosity, the permeability, the elasticity, and the degree of consolidation of the soil. The important conditions are that the water table be sufficiently near the ground surface and...... hiện toàn bộ
Directional topographic site response at Tarzana observed in aftershocks of the 1994 Northridge, California, earthquake: Implications for mainshock motionsBulletin of the Seismological Society of America - Tập 86 Số 1B - Trang S193-S208 - 1996
Paul Spudich, M. Hellweg, W. H. K. Lee
AbstractThe Northridge earthquake caused 1.78 g acceleration in the east-west direction at a site in Tarzana, California, located about 6 km south of the mainshock epicenter. The accelerograph was located atop a hill about 15-m high, 500-m long, and 130-m wide, striking about N78°E. During the aftershock sequence, a temporary array of 21 three-component geophones w...... hiện toàn bộ