Titlebook: Computational Seismology; V. I. Keilis-Borok,Edward A. Flinn (Technical Dire Book 1972 Consultants Bureau, New York 1972 earthquake.geophy

TSH582

Interference Head Wavesnear the boundary at which they are formed. This influence is often due to interference phenomena in the transitional zone adjacent to the boundary. The effect of the interference of a small number of waves is easily computed by direct summation of the individual waves [1, 2, 5].

DIKE

不理会

减弱不好

荨麻

废止

Epilogue: An Undisciplined Life,This paper is a continuation of [1], which described a method of determining a distant hypocenter from the arrival times of P waves.

不能和解

Asian Anthroscapes: China and Taiwan,This paper describes a method of computer determination of a source equivalent to a seismic focus. The initial observations are the signs of the first arrivals of various body waves.

Throttle

https://doi.org/10.1007/978-3-030-57631-8This paper presents a numerical study of effect on the amplitude-distance curve of body waves caused by a discontinuity in the velocity gradient at a certain depth. The study was made with an elementary model; two layers with different gradients. The results can be used for more complicated models.

Bumptious

Sustainable Land Management for NEOM RegionDetermination of the depth of a source is based on analysis of the first phases of the recording — in particular, on the difference between the arrival times pP — P and sP — P. But the first arrivals can also contain other converted and reflected waves which complicate the wave field in the vicinity of the first arrivals.

挣扎

Demographic Change and Land UseThe interpretation of seismological observations at all distances, except the very nearest (out to 10°), is based on the basic compendium of seismic-wave travel times composed by Jeffreys and Bullen in 1940 [1] and later refined and supplemented by a number of authors [10].