[单项选择]Passage One
When the Earth shook here on March 26th, 2000, it helped geologists to figure out how the Earth around Seattle would shake during the real thing less than a year later.
When Seattle’s Kingdome was demolished with explosives, more than 200 seismic recorders caught every rattle and roll. Tom Brocher of the U.S. Geological Survey says, "You can see the red waves traveling away from the Kingdome. "
① The areas that shook the worst then also shook the worst when the six point eight (on the Richter scale) Nisqually earthquake hit.
② "We shouldn’t be surprised to see damage at Boeing field and at the port of Seattle where we did see damage, because in both of those areas the ground shook longer and harder than other parts of Seattle."
It’s what’s known as a slab quake (located) 36 miles below the surface where the Juan de Fuca plate slab is diving underneath the North American plate. Geologists believe the plate bent, causing it to crack,
A. Nisqually earthquake.
B. Loma Prieta earthquake.
C. Explosives.
D. Aftershocks.