On
July 3, 2002 a moderate sized earthquake (M~4) occurred roughly 30 km
northwest of the Magic Mountain hydrothermal vent site (see
Ocean Explorer logbook for site description). The earthquake seems
to have been caused by motion of off-axis faults well west of the Explorer
neo-volcanic zone. On July 8, two more small earthquakes occurred 70-100
km northwest of the Explorer Ridge along a large strike-slip fault called
the Revere-Dellwood Transfrom. These earthquakes are representative of
the typical "background" level of seismicity for this region.
Visit
NOAA's Ocean
Explorer to read all about the expeditions.
Follow
these scientists July 13-21 as they explore an undersea volcano,
Axial Volcano, as part of the New Millennium Observatory, NeMO.
