Answer:

earthquake

Answer	Crossword Clue
EARTHQUAKE	Natural event
EARTHQUAKE	Capp's McGoon.
EARTHQUAKE	Temblor.

EARTHQUAKE	Disaster.
EARTHQUAKE	Seismograph find.
EARTHQUAKE	Ground-breaking, king size.
EARTHQUAKE	Upheaval.
EARTHQUAKE	S.F. headline of 1906
EARTHQUAKE	Richter-scale event
EARTHQUAKE	Natural disaster
EARTHQUAKE	Seismologist's concern

EARTHQUAKE	Event in N Calif.: Oct. 17, 1989
EARTHQUAKE	Californian's worry
EARTHQUAKE	Catastrophic event
EARTHQUAKE	It could be catastrophic

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.