The tremor was limited to a single structure built inside a laboratory at the University at Buffalo , intended to simulate the 1994 Northridge quake that shook Los Angeles .
Northridge /location/neighborhood/neighborhood_of Los Angeles
Los Angeles /location/location/contains Northridge
DT NN VBD VBN TO DT JJ NN VBN IN DT NN IN DT NNP IN NNP , VBN TO VB DT CD NNP NN WDT VBD NNP NNP .
Northridge
ORGANIZATION
Los Angeles
LOCATION
/location/neighborhood/neighborhood_of
Los Angeles
LOCATION
Northridge
ORGANIZATION
/location/location/contains