BROAD-BAND ANALYSIS OF THE 21 SEPTEMBER, 1993 KLAMATH-FALLS EARTHQUAKE SEQUENCE

被引：30

作者：

DREGER, D ^{[1
]}

RITSEMA, J ^{[1
]}

PASYANOS, M ^{[1
]}

机构：

[1] UNIV CALIF SANTA CRUZ,INST TECTON,SANTA CRUZ,CA 95064

来源：

GEOPHYSICAL RESEARCH LETTERS | 1995年 / 22卷 / 08期

关键词：

D O I：

10.1029/95GL00566

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The source characteristics of the Klamath Falls earthquake sequence were estimated from broadband seismograms recorded by the Berkeley Digital Seismic Network (BDSN), TERRAscope, and western United States IRIS stations. Solutions were obtained for events ranging in size from M(omega)3.8 to M(omega)6.0. An empirical Green's function inverse approach was used to estimate kinematic source parameters of the two M(omega)6.0 mainshocks. Both events were found to have ruptured northwest on adjacent segments of the Lake of the Woods system of normal faults. The two mainshocks abut where there is a pronounced 10 degrees to 20 degrees clockwise rotation of strike which may have initially acted as a barrier to a through-going M(omega)6.2 event.

引用

页码：997 / 1000

页数：4

共 11 条

[1]

Braunmiller J., Nabelek J., Leitner B., The 1993 Kla‐math Falls, Oregon earthquake sequence: Source mechanisms from regional data, Geophys. Res. Lett., (1995)

[2]

Dreger D.S., Empirical Green's Function Study of the January 17, 1994 Northridge, California Earthquake, Geophys. Res. Lett., 21, pp. 2633-2636, (1994)

[3]

Jacobson R.S., Map of Oregon Seismicity, 1841–1986, (1986)

[4]

King G.C.P., Nabelek J.L., The Role of Bends in Faults in the Initiation and Termination of Earthquake Rupture, Science, 228, pp. 984-987, (1985)

[5]

Luedke R.G., Smith R.L., Russel-Robinson S.L., Map Showing Distribution, Composition and Age of Late Cenozoic Volcanoes and Volcanic Rocks of the Cascade Range and Vicinity, Northwestern United States, (1983)

[6]

Mori J., Hartzell S., Source Inversion of the 1988 Upland Earthquake:Determination of a Fault Plane for a Small Event, Bull. Seism. Soc. Am., 80, pp. 507-518, (1990)

[7]

Patton H.J., Zandt G., Seismic Moment Tensors of Western U.S. Earthquakes and Implications for the Tectonic Stress Field, Journal of Geophysical Research, 96, pp. 18245-18259, (1991)

[8]

Ritsema J., Lay T., Rapid Source Mechanism Determination of Large (Mw >=5) Earthquakes in the Western United States, Geophys. Res. Lett., 20, pp. 1611-1614, (1993)

[9]

Ritsema, Lay J.T., Dreger D., Pasyanos M., Romanowicz B., Moment Tensor Inversion for Western United States Earthquakes: Calibration of Methods, Seism. Res. Lett., 65, (1994)

[10]

Romanowicz, Dreger B.D., Pasyanos M., Urhammer R., Monitoring of Strain Release in Central and Northern California Using Broadband Data, Geophys. Res. Let., 20, pp. 1643-1646, (1993)

← 1 2 →