CRSEIZE was an IRIS PASSCAL joint seismic/geodetic
experiment to investigate
properties of earthquakes that occur along the plate interface at
subduction
zone boundaries. These earthquakes release about 90% of seismic
moment release
globally and the largest magnitude earthquakes recorded occur at
this type of
plate boundary. This experiment deployed land and ocean bottom seismometers
and
GPS receivers in Costa Rica to explore the width (depth extent)
of the plate
interface capable of generating earthquakes, the amount of plate
motion locked
on the plate interface, and the properties that control earthquake
generation at
the plate interface. Both spatial and temporal variations in these
properties
were revealed.
Contributed by Susan Schwartz |
