...John A. Blume abstract Typical data obtained thus far in the AEC nuclear test program on the response of highrise Las Vegas buildings to ground motion from distant nuclear events including Boxcar and Benham are presented, together with measured building response to distant earthquakes and to wind...

.... Healy J. H. (1969) . Aftershocks of the BENHAM nuclear explosion , Bull. Seism. Soc. Am. 59 , 2271 - 2281 . Hirasawa T. (1971) . Radiation patterns of S waves from underground nuclear...

... 9,0 i0.0 Hz Spectra of FREQUtEhNeCY,FIG. 7. Particle Velocity Amplitude Compressional Wave Window, Radia~ Component, BENH~-M Event. SEISMIC ENERGY EFFICIENCY OF UNDERGROUND NUCLEAR DETONATIONS 2321 BOXCAR, BENHAM and SCHOONER. As described in Table 1, BOXCAR and BENHAMwere large yield, contained...

... the events BOXCAR and BENHAM are compared with predictions based on the statistical analyses. INTRODUCTION The purpose of this paper is to describe a statistical analysis of a large body of nuclear-generated peak amplitude data and to compare the statistically derived pre- diction equations with observed...

... dependence on alluvium depth. The strain decay with time is not consistent with that observed on Benham, and, at 914 m, appears to be a permanent step, similar to that observed on the Jorum event. INTRODUCTION Soil strain seismometers were installed near the low-intermediate-yield nuclear detonation...

...., not including events near MICROEARTItQUAKE ACTIVITY BEFORE AND AFTER NUCLEAR EXPLOSION BENHAM 2179 FIG. 2. Sample seismograms from Site 6 (Figure 1). Top shows recording on December 14 before the explosion; b o t t o m shows record on December 19 after the explosion. Local earthquakes are indicated by arrows...

...R. C. Bucknam abstract The Benham event, an underground nuclear explosion with a yield of about 1 megaton, produced linear fracture zones along previously mapped Basin and Range faults as far as 5.6 km (kilometers) from the explosion. The sense of vertical displacement on the faults and associated...

..., BENHAM and PIPKIN. SUMMARY 1. A f t e r s h o c k sequences were initiated by the u n d e r g r o u n d nuclear explosions BENHAM, PURSE, JORUM, and HANDLEY. Their relative effects are indicated below. Event Duration of No. of Aftershock Earthquakes BENHAM Sequence* with M 2.0 PURSE JORU M (days) 2012...

...) . Geologic effects of the Benham underground nuclear explosion, Nevada Test Site , Bull. Seism. Soc. Am. 59 , 2209 - 2220 . Crowley B. K. Germain L. S. (1971) . Energy released...

.... Geophys. Res. 68 , 5005 - 5028 . Bucknam R. C. (1969) . Geologic effects of the Benham underground nuclear explosion, Nevada Test Site , Bull. Seism. Soc. Am. 59 , 2209 - 2220 . Deere...

...-S component of station SE-6 at certain periods for five nuclear events. The greatest values are double-underlined and the next greatest are single-underlined. HANDLEY has the greatest tabulated values except at a period of 0.5 sec. BOXCAR and BENHAM are fairly close at many periods but BENHAM...

... of the order of one-hundredth of the energy of BENHAM that coupled into seismic wave motion. The aftershock volume of BENHAM does not appear to be significantly different from the volume for aftershocks from a natural event of the same body-wave magnitude. 23 3 1971 Copyright © 1971...

... spectra from a magnitude 6.6 earthquake in the same distance range. 08 8 1969 Copyright © 1969, by the Seismological Society of America Bulletin of the Seismological Society of America. VoL 59, No. 6, pp. 2371-2381. December, 1969 GROUND EFFECTS FROM THE BOXCAR AND BENHAM NUCLEAR EXPLOSIONS...

...R. M. Hamilton; J. H. Healy abstract The Benham nuclear explosion, a 1.1 megaton test 1.4 km beneath Pahute Mesa at the Nevada Test Site, initiated a sequence of earthquakes lasting several months. The epicenters of these shocks were located within 13 km of ground zero in several linear zones...

... nell'area epicentrale compresi i microterremoti Rend. Soc. Geol. Ital. 4 , 67 - 70 . Hamilton R. M. Healy J. H. (1969) . Aftershocks of the Benham nuclear explosion , Bull Seism...

.... Molnar, P , K Jacob, and L R Sykes (1969). Mlcroearthquake activity m eastern Nevada and Death Valley, Calfforma before and after the nuclear explosion BENHAM, Bull. Setsm Soc. Am 59, 2177- 2184 Morns, R H., L M Gard, and R P. Snyder (1972). Visible geologmal effects of the CANNIKIN event, Bull Se~sm Soc...

..., 1971 SMALLER AFTERSHOCKS OF THE BENHAM NUCLEAR EXPLOSION BY WILLIAMSTAClmR ABSTRACT ]'he examination of the BENHAM aftershocks is extended to ] 52 earthquakes approximately an order of magnitude smaller than those previously studied. The spatial distribution of these smaller events is similar...

...-couple orientation and moment (Aki and Tsai, 1972), relatively little attention has been given to higher frequency signals. Aki et al. (1969) found that near-field tangential accelerograms indicate that event BENHAM triggered an earthquake a few seconds after the explosion, and Johnson et al. (1982) have...

... to understand the effects of differences in the geologic setting and nuclear testing practices on its performance. Table 3 Four Events That Did Not Produce an M 99 Aftershock within Seven Days Longitude Latitude Magnitude Year Month Day Time (UTC) -116.155 37.233 4.5 1970...

... Society of America * Publication authorized by the Director, U. S. Geological Survey. References Bucknam R. C. (1969) . Geologic effects of the BENHAM underground nuclear explosion, Nevada Test Site , Bull. Seism. Soc...