References

Abercrombie, R.E., Earthquake locations using single-station deep borehole recordings: Implications for microseismicity on the San Andreas fault in southern California. J. Geophys. Res., 100, 24003-24014, 1995. Asch, G., K. Wylegalla, M. Hellweg, D. Seidl, and H. Rademacher, Observations of Rapid-Fire Event Tremor at Lascar Volcano, Chile, Annali di Geofisica, 39, p. 273-282, 1996. Bolt, B., J. Stifler and R. Uhrhammer. The Briones Hills Earthquake Swarm of January 8, 1977, Contra Costa County, California. Bull Seismol. Soc. Am., 67, 1555-1564, 1977. Hill, D.P., W.L. Ellsworth, M.J.S. Johnston, J.O. Langbein, D.H. Oppenheimer, A.M. Pitt, P.A. Reasenbert, J.L. Sorey and S.R. McNutt, The 1989 Earthquake Swarm Beneath Mammoth Mountain, California, An Initial Look at the 4 May through 30 September Activity, Bull. Seis. Soc. Am., 80, 325-339, 1990. Plesinger, A., M. Hellweg and D. Seidl, Interactive high-resolution polarization analysis of broadband seismograms. J. Geophysics, 59, p. 129-139, 1986.

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