TY  - JOUR
ID  - epos1342
UR  - http://dx.doi.org/10.1126/science.1148783
IS  - 5866
A1  - Marsan, David
A1  - Lengline, Olivier
Y1  - 2008/02/22/
N2  - Earthquakes, whatever their size, can trigger other earthquakes. Mainshocks cause aftershocks
to occur, which in turn activate their own local aftershock sequences, resulting in a cascade
of triggering that extends the reach of the initial mainshock. A long-lasting difficulty is to
determine which earthquakes are connected, either directly or indirectly. Here we show that
this causal structure can be found probabilistically, with no a priori model nor parameterization.
Large regional earthquakes are found to have a short direct influence in comparison to the
overall aftershock sequence duration. Relative to these large mainshocks, small earthquakes
collectively have a greater effect on triggering. Hence, cascade triggering is a key component in
earthquake interactions.
PB  - American Association for the Advancement of Science
JF  - Science
VL  - 319
SN  - 0036-8075
TI  - Extending Earthquakes' Reach Through Cascading
SP  - 1076
AV  - none
EP  - 1079
ER  -