1.   And that explosion can trigger a chain reaction of controversy.

2.   The explosions triggered a decline in the Philippine peso against the dollar and was expected to cause a dip in the stock market tomorrow, analysts said.

3.   They also speculated that the first explosion might trigger other blasts of radwaste throughout the dump site.

4.   But gas began gushing out from several places around the mouth of the well and a huge explosion triggered the blaze.

5.   Navarro said there also was an unconfirmed report that a methane gas explosion triggered the collapse.

6.   The explosion later triggered a fire at the site of a natural gas regulator, it added after concluding initial studies at the site of the explosion.

7.   The explosions triggered a storm of international criticism.

8.   The explosion triggered a stampede as fire and smoke billowed from the stores.

9.   The explosion apparently triggered a hostage-taking incident later Saturday on the far northern island of Novaya Zemlya, Interfax reported.

10.   The explosion triggered a massive fire that took about an hour to control.