Fig. 3. Coulomb failure
stress changes (=0.4)
caused by M?6 earthquakes in southeastern California during 1979-1992. Quaternary
faults are black; the coastline is white. ML?1 earthquakes within 25 days of
the Landers shock are from the Caltech-U.S. Geological Survey RTP network (rms?0.4
s, ?7 arrivals). Most Landers aftershocks are found where the predicted failure
stress change is positive. Stress changes caused by the 1979 Imperial Valley
(IV), 1987 Elmore Ranch (ER) and Superstition Hills (SH) earthquakes are included,
but their aftershocks are not shown. Predicted stress has risen along the Coachella
Valley segment (Bombay Beach to north of Indio) and the San Bernardino Mountain
segment (North of Palm Springs to Cajon Pass). The Mojave segment (Cajon Pass
to west edge of map) has been unloaded. Y=Yucaipa. Other faults shown are Elsinore
(EF), San Jacinto (SJF), Garlock (GF), Camp Rock (CRF), Pisgah (PF), Lenwood
(LF), and Blackwater (BF). Upper left corner is 36.00°N/119.00°W; lower
left corner is 32.50°/115.00°W.
R. S. Stein, G. C. P. King and J. Lin,
Change in failure stress on the southern San Andreas fault system caused
by the 1992 Magnitude=7.4 Landers earthquake, Science, 258, pp. 1328-1332,
1992.
=0.4)
caused by M?6 earthquakes in southeastern California during 1979-1992. Quaternary
faults are black; the coastline is white. ML?1 earthquakes within 25 days of
the Landers shock are from the Caltech-U.S. Geological Survey RTP network (rms?0.4
s, ?7 arrivals). Most Landers aftershocks are found where the predicted failure
stress change is positive. Stress changes caused by the 1979 Imperial Valley
(IV), 1987 Elmore Ranch (ER) and Superstition Hills (SH) earthquakes are included,
but their aftershocks are not shown. Predicted stress has risen along the Coachella
Valley segment (Bombay Beach to north of Indio) and the San Bernardino Mountain
segment (North of Palm Springs to Cajon Pass). The Mojave segment (Cajon Pass
to west edge of map) has been unloaded. Y=Yucaipa. Other faults shown are Elsinore
(EF), San Jacinto (SJF), Garlock (GF), Camp Rock (CRF), Pisgah (PF), Lenwood
(LF), and Blackwater (BF). Upper left corner is 36.00°N/119.00°W; lower
left corner is 32.50°/115.00°W.