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principles and applications of microearthquake networks

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250 Rc f' eretices<br />

Lee. W. H. K.. <strong>and</strong> Lahr. J. C. ( 197.5). HYPO71 (revised): A computet- program for detei-mining<br />

hypocenter, magnitude. <strong>and</strong> first motion pattern <strong>of</strong> local earthquakes. Geol. Srrn~.<br />

Opeti-File Re/>, (U.S.) 75-311, 1-1 Ih.<br />

Lee. W. H. K., <strong>and</strong> Wetmiller, R. J. (eds.1( 1978). Survey <strong>of</strong> practice in determining magnitudes<br />

<strong>of</strong> near earthquakes. Part I: North, Central, <strong>and</strong> South America. World Data<br />

Cerit. A Solid Errrtli Gmph~~,~.~ Kr'p. SE-9. 1-102.<br />

Lee, W. H. K.. Eaton, M. S., <strong>and</strong> Brabb, E. E. (1971). The earthquake sequence near<br />

Danville, California. 1970. Birll. S ~Oinol. Soc. An?. 61, 1771-1794.<br />

Lee, W. H. K., Bennett, R. E., <strong>and</strong> Meagher. K. L. (1972). A method <strong>of</strong> estimating magnitude<br />

<strong>of</strong> local earthquakes from signal duration. GLW/. Sun.. Oprti-tilc Kcp.<br />

(U.S.) 28.<br />

I.ee, W. H. K., Johnson, C. E., Henyey, T. L., <strong>and</strong> Yerkes, R. F. (1978). A preliminary<br />

study <strong>of</strong> the Santa Barbara, California, earthquake <strong>of</strong> August 13, 1978 <strong>and</strong> its major<br />

aftershocks. GPO/. Sirr~,. Circ. (U.S. 797. 1-1 1.<br />

I.ee, W. H. K.. Herd, D. G., Cagnetti. V.. Bakun, W. H., <strong>and</strong> Rapport, A. L. (1979a). A<br />

preliminary study <strong>of</strong> the Coyote Lake earthquake <strong>of</strong> August 6, I979 <strong>and</strong> its major<br />

aftershocks. Geol. Sut~.<br />

Opeti-File Rep. (U.S.179-1621, 1-43.<br />

Lee, W. H. K., Yerkes, R. F., <strong>and</strong> Simirenko. M. (1979b). Recent earthquake activity <strong>and</strong><br />

focal mechanisms in the western Transverse Ranges, California. Geol. Sirri.. Circ.<br />

1U.S.) 799-A, 1-26.<br />

Lee, W. H. K., Nelson, G., Ward. P. L.. <strong>and</strong> Zhao, Z. H. (1981). Users' manual for<br />

HYPOXIA: A program to determine hypocenter <strong>and</strong> magnitude <strong>of</strong> local earthquakes<br />

using minicomputers. In preparation.<br />

Lee, W. H. K., Aki, K., <strong>and</strong> Thurber, C. (1982a). Determination <strong>of</strong> three-dimensional<br />

velocity anomalies under a seismic array using first P arrival times from local earthquakes,<br />

Part 11. A heterogeneous initial model. In preparation.<br />

Lee, W. H. K., Pereyra, V., <strong>and</strong> Keller, H. B. (1982b3. Solving two-point ray-tracing problems<br />

in a heterogeneous medium. Part 2. Numerical solutions <strong>of</strong> two- <strong>and</strong> threedimensional<br />

velocity models. In preparation.<br />

Lehner, F. E., <strong>and</strong> Press. F. (1966). A mobile seismograph array. Bull. Seismol. Soc. Am. 56,<br />

889-897.<br />

Lentini, M., <strong>and</strong> Pereyra. V. ( 1977). An adaptive finite difference solver for nonlinear twopoint<br />

boundary problems with mild boundary layers. SlAiM J. Nirnier. Atiul. 14, 91-<br />

11 I.<br />

Lester, F. W., Bufe. C. G., Lahr, K. M., <strong>and</strong> Stewart, S. W. (1975). Aftershocks <strong>of</strong> the<br />

Oroville earthquake <strong>of</strong> August 1, 1975. Spec,. Rep.-Cdif.., Dii.. Mitres Geol. 124,<br />

131-138.<br />

Levenberg, K. (1944). A method for the solution <strong>of</strong> certain non-linear problems in least<br />

squares. Q. April. Mrrth. 2, 164-168.<br />

Lilwall. R. C., <strong>and</strong> Francis, T. J. G. (1978). Hypocentral resolution <strong>of</strong> small ocean bottom<br />

seismic <strong>networks</strong>. Groptiys. J. R. Astron. Soc. S4, 721-728.<br />

Lilwall, R. C., Francis, T. J. G., <strong>and</strong> Porter, I. T. ( 1977). Ocean-bottom seismograph observations<br />

on the Mid-Atlantic Ridge near 45 degrees N. Geophys. J. R. Asrron. SOC. 51,<br />

357-370.<br />

Lilwall, R. C., Francis, T. J. G., <strong>and</strong> Porter, I. T. (1978). Ocean-bottom seismograph observation<br />

on the Mid-Atlantic Ridge near 45 degrees N: Further results. Geopkys. J. R.<br />

Astron. SOC. SS, 255-262.<br />

Lilwall, R. C., Francis, T. J. G., <strong>and</strong> Porter, I. T. (1980). Some ocean-bottom seismograph<br />

observations on the Reykjanes Ridge at 59 degrees N. Geophys. .I. R. Astron. Sot,.<br />

62, 321-327.

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